首页 > 最新文献

Ecological Indicators最新文献

英文 中文
Impacts of different forest fire management policies and fuel treatment models on forest fire risk in boreal forest of China 不同林火管理政策和燃料处理模式对中国北方森林火险的影响
IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-07 DOI: 10.1016/j.ecolind.2024.112806
Tongxin Hu, Zibo Xu, Cheng Yu, Xu Dou, Yujing Zhang, Long Sun
Forest fuels are the material basis of forest fires and the main factor in the spread of fires. The current global warming has led to an increase in the effective fuel load in the global boreal forests, and the long-term implementation of the fire suppression policy will lead to a continuous accumulation of fuels in the forests, which will further increase the likelihood of the occurrence of mega-forest fires and the risk of such fires. This challenge has prompted different countries and regions to shift away from monolithic fire suppression policies to practising effective fuel regulation measures in order to strike a balance between reducing the risk of wildfires and protecting ecosystems. This study utilises the LANDIS PRO model to investigate the effects of fire management policies and fuel regulation measures on fire risk in high-latitude boreal forest region of China over 100 years using a 10-year time step. The results show that (1) Fire suppression policies accelerate the accumulation of coarse and fine fuels (by 19.05 % and 9.28 %, respectively) and increase the potential average fire intensity of the area (by 58.81 %) compared to no fire suppression policies; (2) Implementation of mechanical removal, prescribed burning and mechanical removal plus prescribed burning under the fire suppression policy reduces the area of high-intensity fires in the region and thus significantly reduces the forest fire risk (by 17.37 %, 13.37 %, and 21.18 %, respectively); (3) Implementing a fire suppression policy and mechanical removal plus prescribed burning on 3.0 % of the area every 15 years are supposed to be the optimal fuel treatment program for the region, which resulted in significant reductions in total area burned, and low, medium, and high-intensity area burned by 23.34, 26.23, 23.73, and 22.87 %, respectively, when compared to no fuel treatment. This study found that fire management policies have a greater impact on fire risk than fuel regulation measures and that reasonable fuel control can help reduce the area of high-intensity fires in the region. This study aids to provide a scientific basis and data support for formulating forest fire management policies and selecting fuel control methods in high-latitude boreal forests of China.
森林燃料是森林火灾的物质基础,也是火灾蔓延的主要因素。当前,全球气候变暖导致全球北方森林有效燃料负荷增加,长期实施灭火政策将导致森林燃料持续积累,进一步增加特大森林火灾发生的可能性和风险。这一挑战促使不同国家和地区从单一的灭火政策转向实施有效的燃料调节措施,以便在降低野火风险和保护生态系统之间取得平衡。本研究利用 LANDIS PRO 模型,以 10 年为时间步长,研究了 100 年内中国高纬度北方林区火灾管理政策和燃料调控措施对火灾风险的影响。结果表明:(1) 与无火灾抑制政策相比,火灾抑制政策加速了粗燃料和细燃料的积累(分别增加了 19.05 % 和 9.28 %),并增加了该地区潜在的平均火灾强度(增加了 58.81 %);(2) 在火灾抑制政策下,机械清除、规定燃烧和机械清除加规定燃烧的实施减少了该地区高强度火灾的发生面积,从而显著降低了森林火灾风险(分别减少了 17.37 %、13.37 %、13.37 %、13.37 %)。分别降低了 17.37 %、13.37 % 和 21.18 %);(3)每 15 年对 3.0 % 的面积实施火源抑制政策和机械清除加规定燃烧应该是该地区的最佳燃料处理方案,与不进行燃料处理相比,总燃烧面积以及低、中、高强度燃烧面积分别显著减少了 23.34 %、26.23 %、23.73 % 和 22.87 %。这项研究发现,与燃料调节措施相比,火灾管理政策对火灾风险的影响更大,合理的燃料控制有助于减少该地区的高强度火灾面积。该研究为中国高纬度北方森林制定森林火灾管理政策和选择燃料控制方法提供了科学依据和数据支持。
{"title":"Impacts of different forest fire management policies and fuel treatment models on forest fire risk in boreal forest of China","authors":"Tongxin Hu,&nbsp;Zibo Xu,&nbsp;Cheng Yu,&nbsp;Xu Dou,&nbsp;Yujing Zhang,&nbsp;Long Sun","doi":"10.1016/j.ecolind.2024.112806","DOIUrl":"10.1016/j.ecolind.2024.112806","url":null,"abstract":"<div><div>Forest fuels are the material basis of forest fires and the main factor in the spread of fires. The current global warming has led to an increase in the effective fuel load in the global boreal forests, and the long-term implementation of the fire suppression policy will lead to a continuous accumulation of fuels in the forests, which will further increase the likelihood of the occurrence of mega-forest fires and the risk of such fires. This challenge has prompted different countries and regions to shift away from monolithic fire suppression policies to practising effective fuel regulation measures in order to strike a balance between reducing the risk of wildfires and protecting ecosystems. This study utilises the LANDIS PRO model to investigate the effects of fire management policies and fuel regulation measures on fire risk in high-latitude boreal forest region of China over 100 years using a 10-year time step. The results show that (1) Fire suppression policies accelerate the accumulation of coarse and fine fuels (by 19.05 % and 9.28 %, respectively) and increase the potential average fire intensity of the area (by 58.81 %) compared to no fire suppression policies; (2) Implementation of mechanical removal, prescribed burning and mechanical removal plus prescribed burning under the fire suppression policy reduces the area of high-intensity fires in the region and thus significantly reduces the forest fire risk (by 17.37 %, 13.37 %, and 21.18 %, respectively); (3) Implementing a fire suppression policy and mechanical removal plus prescribed burning on 3.0 % of the area every 15 years are supposed to be the optimal fuel treatment program for the region, which resulted in significant reductions in total area burned, and low, medium, and high-intensity area burned by 23.34, 26.23, 23.73, and 22.87 %, respectively, when compared to no fuel treatment. This study found that fire management policies have a greater impact on fire risk than fuel regulation measures and that reasonable fuel control can help reduce the area of high-intensity fires in the region. This study aids to provide a scientific basis and data support for formulating forest fire management policies and selecting fuel control methods in high-latitude boreal forests of China.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112806"},"PeriodicalIF":7.0,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Robust hyperspectral estimation of eight leaf functional traits across different species and canopy layers in a subtropical evergreen broad-leaf forest 对亚热带常绿阔叶林中不同树种和树冠层的八种叶片功能特征进行可靠的高光谱估测
IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-07 DOI: 10.1016/j.ecolind.2024.112818
Fangyuan Yu , Yongru Wu , Junjie Wang , Juyu Lian , Zhuo Wu , Wanhui Ye , Zhifeng Wu
Accurately estimating leaf functional traits across different species and canopy layers in subtropical evergreen broad-leaf forests remains a significant challenge due to the complexity of canopy structures and spectral noise. Although hyperspectral remote sensing holds substantial promise, existing methods struggle to deliver robust models capable of generalizing across diverse species and environmental conditions. This study aimed to develop a robust hyperspectral estimation approach for eight leaf traits across six species and three canopy layers, integrating successive projections algorithm (SPA) and random forest (RF) modeling. Utilizing 267 leaf samples and hyperspectral reflectance data acquired via a tower crane in Dinghushan National Nature Reserve, Guangdong Province, China, we demonstrated that the SPA-RF model, when applied to first derivative reflectance (FDR) data, significantly enhanced the accuracy and transferability of leaf trait estimations. The integration of SPA for wavelength selection and RF for modeling represented a robust approach, effectively mitigating the complexities introduced by species diversity and canopy heterogeneity. Leaf trait estimations derived from upper canopy layer samples generally yielded greater precision than those from lower and middle layers. Furthermore, species adapted to high-light environments (sun-tolerant) offered more accurate estimations than those adapted to low-light conditions (shade-tolerant). Among the eight leaf traits studied, flavonoid content, nitrogen balance index, and SPAD (relative leaf chlorophyll content) values emerged as more reliably estimated compared to carbon, nitrogen, phosphorus, equivalent water thickness, and specific leaf area. These findings illuminate the influence of canopy layer and species-specific traits on the precision of leaf trait estimations using hyperspectral remote sensing. The study’s insights emphasize the need for species- and canopy layer-specific approaches in ecological monitoring and conservation efforts.
由于树冠结构和光谱噪声的复杂性,在亚热带常绿阔叶林中准确估计不同物种和树冠层的叶片功能特征仍然是一项重大挑战。尽管高光谱遥感技术大有可为,但现有的方法难以提供能够在不同物种和环境条件下通用的稳健模型。本研究旨在开发一种稳健的高光谱估算方法,结合连续投影算法(SPA)和随机森林(RF)建模,对六个物种和三个树冠层的八个叶片特征进行估算。利用在中国广东省鼎湖山国家级自然保护区通过塔式起重机获取的 267 个叶片样本和高光谱反射率数据,我们证明了将 SPA-RF 模型应用于一阶导数反射率(FDR)数据时,可显著提高叶片性状估计的准确性和可转移性。将用于波长选择的 SPA 和用于建模的 RF 整合在一起是一种稳健的方法,可有效缓解物种多样性和冠层异质性带来的复杂性。从树冠上层样本得出的叶片性状估计结果通常比从中下层样本得出的结果更精确。此外,适应高光照环境(耐晒)的物种比适应低光照条件(耐荫)的物种能提供更精确的估计。在研究的八种叶片性状中,类黄酮含量、氮平衡指数和 SPAD(相对叶绿素含量)值与碳、氮、磷、等效水厚度和比叶面积相比,估算结果更为可靠。这些发现阐明了树冠层和物种特异性对利用高光谱遥感技术估算叶片性状精度的影响。该研究的见解强调了在生态监测和保护工作中采用针对物种和冠层的方法的必要性。
{"title":"Robust hyperspectral estimation of eight leaf functional traits across different species and canopy layers in a subtropical evergreen broad-leaf forest","authors":"Fangyuan Yu ,&nbsp;Yongru Wu ,&nbsp;Junjie Wang ,&nbsp;Juyu Lian ,&nbsp;Zhuo Wu ,&nbsp;Wanhui Ye ,&nbsp;Zhifeng Wu","doi":"10.1016/j.ecolind.2024.112818","DOIUrl":"10.1016/j.ecolind.2024.112818","url":null,"abstract":"<div><div>Accurately estimating leaf functional traits across different species and canopy layers in subtropical evergreen broad-leaf forests remains a significant challenge due to the complexity of canopy structures and spectral noise. Although hyperspectral remote sensing holds substantial promise, existing methods struggle to deliver robust models capable of generalizing across diverse species and environmental conditions. This study aimed to develop a robust hyperspectral estimation approach for eight leaf traits across six species and three canopy layers, integrating successive projections algorithm (SPA) and random forest (RF) modeling. Utilizing 267 leaf samples and hyperspectral reflectance data acquired via a tower crane in Dinghushan National Nature Reserve, Guangdong Province, China, we demonstrated that the SPA-RF model, when applied to first derivative reflectance (FDR) data, significantly enhanced the accuracy and transferability of leaf trait estimations. The integration of SPA for wavelength selection and RF for modeling represented a robust approach, effectively mitigating the complexities introduced by species diversity and canopy heterogeneity. Leaf trait estimations derived from upper canopy layer samples generally yielded greater precision than those from lower and middle layers. Furthermore, species adapted to high-light environments (sun-tolerant) offered more accurate estimations than those adapted to low-light conditions (shade-tolerant). Among the eight leaf traits studied, flavonoid content, nitrogen balance index, and SPAD (relative leaf chlorophyll content) values emerged as more reliably estimated compared to carbon, nitrogen, phosphorus, equivalent water thickness, and specific leaf area. These findings illuminate the influence of canopy layer and species-specific traits on the precision of leaf trait estimations using hyperspectral remote sensing. The study’s insights emphasize the need for species- and canopy layer-specific approaches in ecological monitoring and conservation efforts.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112818"},"PeriodicalIF":7.0,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Machine learning approach for Studying the multifunctionality of soil against global climate changes 针对全球气候变化研究土壤多功能性的机器学习方法
IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-07 DOI: 10.1016/j.ecolind.2024.112772
Xiangng Hu , Yingying Xie , Qixing Zhou , Li Mu
Soil ecosystem multifunctionality (EMF) represents the soil biodiversity and the soil capacity for sustainable development. Due to the high heterogeneity of climate and land use changes, mapping the patterns of global soil EMF in the past and future is necessary and challenging. EMF data from 790 sampling points worldwide were analyzed using a random forest algorithm with SHAP analysis, partial dependence analysis and structural equation modeling to elucidate driving mechanisms of soil EMF under global change and to forecast the global distribution of soil EMF. This also unveiled the interplay between climate and land use changes on EMF. This work revealed that EMF hotspots are distributed in the Caribbean, Southeast Asia and Eastern Europe and are twice as common in these areas than they are in western Asia, North Africa and South Asia. The interplay of multiple dominant factors has antagonistic or synergistic effects and generates tipping points, which are critical for understanding the change processes of EMFs. From 2007 to 2018, land use changes were the dominant factor leading to fluctuations in EMF. However, climate change will become the dominant factor in the future. Land use optimization can mitigate EMF fluctuations in response to climate change. Changes from deserts to grasslands in Africa and from forests to grasslands in Oceania can combat the decline in EMF induced by climate change by 2100. According to the distribution patterns of EMF and optimization, hotspot regions could be protected, and land use planning could be conducted to prevent the degeneration of soil.
土壤生态系统多功能性(EMF)代表了土壤的生物多样性和土壤的可持续发展能力。由于气候和土地利用变化的高度异质性,绘制过去和未来的全球土壤EMF模式图既必要又具有挑战性。本文采用随机森林算法,结合 SHAP 分析、偏相关分析和结构方程模型,对全球 790 个采样点的土壤电磁场数据进行了分析,以阐明全球变化下土壤电磁场的驱动机制,并预测全球土壤电磁场的分布。这也揭示了气候和土地利用变化对 EMF 的相互影响。这项工作揭示了电磁场热点地区分布在加勒比海、东南亚和东欧,是西亚、北非和南亚的两倍。多种主导因素的相互作用会产生拮抗或协同效应,并产生临界点,这对于理解电磁场的变化过程至关重要。从 2007 年到 2018 年,土地利用变化是导致电磁场波动的主导因素。然而,未来气候变化将成为主导因素。优化土地利用可以缓解电磁场因气候变化而产生的波动。非洲从沙漠到草原的变化以及大洋洲从森林到草原的变化,可在 2100 年前抵御气候变化引起的电磁场下降。根据电磁场的分布模式和优化,可以对热点地区进行保护,并进行土地利用规划,防止土壤退化。
{"title":"Machine learning approach for Studying the multifunctionality of soil against global climate changes","authors":"Xiangng Hu ,&nbsp;Yingying Xie ,&nbsp;Qixing Zhou ,&nbsp;Li Mu","doi":"10.1016/j.ecolind.2024.112772","DOIUrl":"10.1016/j.ecolind.2024.112772","url":null,"abstract":"<div><div>Soil ecosystem multifunctionality (EMF) represents the soil biodiversity and the soil capacity for sustainable development. Due to the high heterogeneity of climate and land use changes, mapping the patterns of global soil EMF in the past and future is necessary and challenging. EMF data from 790 sampling points worldwide were analyzed using a random forest algorithm with SHAP analysis, partial dependence analysis and structural equation modeling to elucidate driving mechanisms of soil EMF under global change and to forecast the global distribution of soil EMF. This also unveiled the interplay between climate and land use changes on EMF. This work revealed that EMF hotspots are distributed in the Caribbean, Southeast Asia and Eastern Europe and are twice as common in these areas than they are in western Asia, North Africa and South Asia. The interplay of multiple dominant factors has antagonistic or synergistic effects and generates tipping points, which are critical for understanding the change processes of EMFs. From 2007 to 2018, land use changes were the dominant factor leading to fluctuations in EMF. However, climate change will become the dominant factor in the future. Land use optimization can mitigate EMF fluctuations in response to climate change. Changes from deserts to grasslands in Africa and from forests to grasslands in Oceania can combat the decline in EMF induced by climate change by 2100. According to the distribution patterns of EMF and optimization, hotspot regions could be protected, and land use planning could be conducted to prevent the degeneration of soil.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112772"},"PeriodicalIF":7.0,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mapping indicator species of segetal flora for result-based payments in arable land using UAV imagery and deep learning 利用无人飞行器图像和深度学习绘制耕地基于结果的支付的植物区系指示物种图
IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-07 DOI: 10.1016/j.ecolind.2024.112780
Caterina Barrasso , Robert Krüger , Anette Eltner , Anna F. Cord
The decline of segetal flora species across Europe, driven by intensified agricultural practices, is impacting other taxa and ecosystem functions. Result-based payments to farmers offer an effective solution to conserve these species, but the high cost of biodiversity monitoring remains a challenge. In this study, we conducted UAV flights with an RGB camera and used the deep learning model YOLO to detect these species in four winter barley fields under different management intensities in Germany. Field measurements of plant traits were used to evaluate their impact on species detectability. Additionally, we investigated the potential of spatial co-occurrence and canopy height heterogeneity to predict the presence of species difficult to detect by UAVs. We found that half of the species observed could be remotely detected, with a minimum ground sampling distance (GSD) of 1.22 mm required for accurate annotation. The same detection ratio was estimated for key indicator species not present in our study area based on trait information. Plant height was crucial for species detection, with accuracy ranging between 49–100 %. YOLO models effectively predicted species from images taken at 40 m, reducing the monitoring time to eight minutes per hectare. Co-occurrence with UAV-detectable species and canopy height heterogeneity proved promising for identifying areas where undetectable species are likely to occur, although further research is needed for landscape-level applications. Our study highlights the potential for large-scale, cost-effective monitoring of segetal flora species in agricultural landscapes, and provides valuable insights for developing robust ‘smart indicators’ for future biodiversity monitoring.
在强化农业实践的推动下,欧洲各地的植物物种减少,对其他类群和生态系统功能造成了影响。向农民支付基于结果的费用为保护这些物种提供了一个有效的解决方案,但生物多样性监测的高成本仍然是一个挑战。在这项研究中,我们利用 RGB 摄像机进行了无人机飞行,并使用深度学习模型 YOLO 在德国不同管理强度下的四块冬大麦田中检测这些物种。对植物性状的实地测量用于评估它们对物种可探测性的影响。此外,我们还研究了空间共现和冠层高度异质性预测无人机难以探测到的物种存在的潜力。我们发现,观察到的物种中有一半可以被远程探测到,准确标注所需的最小地面取样距离(GSD)为 1.22 毫米。根据性状信息,我们还估算了未出现在研究区域的关键指示物种的检测率。植株高度对物种检测至关重要,准确率在 49-100% 之间。YOLO 模型能有效地从 40 米处拍摄的图像中预测物种,从而将每公顷的监测时间缩短至 8 分钟。事实证明,无人机检测到的物种与树冠高度异质性的共同出现有望确定可能出现无法检测到的物种的区域,不过在景观级应用方面还需要进一步研究。我们的研究凸显了在农业景观中对自生植物物种进行大规模、经济高效监测的潜力,并为未来生物多样性监测开发稳健的 "智能指标 "提供了宝贵的见解。
{"title":"Mapping indicator species of segetal flora for result-based payments in arable land using UAV imagery and deep learning","authors":"Caterina Barrasso ,&nbsp;Robert Krüger ,&nbsp;Anette Eltner ,&nbsp;Anna F. Cord","doi":"10.1016/j.ecolind.2024.112780","DOIUrl":"10.1016/j.ecolind.2024.112780","url":null,"abstract":"<div><div>The decline of segetal flora species across Europe, driven by intensified agricultural practices, is impacting other taxa and ecosystem functions. Result-based payments to farmers offer an effective solution to conserve these species, but the high cost of biodiversity monitoring remains a challenge. In this study, we conducted UAV flights with an RGB camera and used the deep learning model YOLO to detect these species in four winter barley fields under different management intensities in Germany. Field measurements of plant traits were used to evaluate their impact on species detectability. Additionally, we investigated the potential of spatial co-occurrence and canopy height heterogeneity to predict the presence of species difficult to detect by UAVs. We found that half of the species observed could be remotely detected, with a minimum ground sampling distance (GSD) of 1.22 mm required for accurate annotation. The same detection ratio was estimated for key indicator species not present in our study area based on trait information. Plant height was crucial for species detection, with accuracy ranging between 49–100 %. YOLO models effectively predicted species from images taken at 40 m, reducing the monitoring time to eight minutes per hectare. Co-occurrence with UAV-detectable species and canopy height heterogeneity proved promising for identifying areas where undetectable species are likely to occur, although further research is needed for landscape-level applications. Our study highlights the potential for large-scale, cost-effective monitoring of segetal flora species in agricultural landscapes, and provides valuable insights for developing robust ‘smart indicators’ for future biodiversity monitoring.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112780"},"PeriodicalIF":7.0,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bibliometric analysis of ecological security pattern construction: Current status, evolution, and development trends 生态安全格局构建的文献计量分析:现状、演变与发展趋势
IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-06 DOI: 10.1016/j.ecolind.2024.112754
Rui Shu , Guoqing Ma , Yebin Zou , Na Guo , Huizhe Su , Guiqing Zhang
The construction of effective ecological security patterns is crucial for sustaining ecosystem health and preserving the functionality of ecological services. This approach is vital for improving human well-being and protecting ecological security. This study employs bibliometric analysis to examine the topic of ecological security pattern construction, with a systematic review of 823 articles published from 2000 to 2024, analyzed from quantitative and visual angles. The analysis uncovers research progress, identifies hotspots, and outlines key themes. The findings show that China has a substantial lead in publication numbers (77.02%), with Europe dominating in terms of average citations per paper. The United States, the United Kingdom, and Germany are leaders in international collaboration, with over 50% of their publications being collaborative efforts. The primary outlets for these publications are top-tier and open-access journals, with Ecological Indicators topping both the publication count and citation frequency. The study’s main themes encompass ecological security, ecosystem services, conservation planning, urban growth boundaries, ecological corridors, ecological networks, and green infrastructure. The study elucidates research progress and gaps through a closed-loop construction process of ecological security assessment—source identification—corridor extraction—effectiveness evaluation. Finally, the paper proposes three key directions for future ecological security pattern construction: integrity, scale, and dynamism. This study aids researchers in gaining a deeper understanding of the current state of ecological security pattern construction research and provides historical references for future studies.
构建有效的生态安全模式对于维持生态系统健康和保护生态服务功能至关重要。这种方法对于改善人类福祉和保护生态安全至关重要。本研究采用文献计量学分析方法研究生态安全格局构建这一主题,系统回顾了 2000 年至 2024 年间发表的 823 篇文章,并从定量和可视角度进行了分析。分析揭示了研究进展,确定了研究热点,勾勒了关键主题。研究结果表明,中国在论文发表数量上遥遥领先(77.02%),欧洲在每篇论文的平均引用次数上占据主导地位。美国、英国和德国在国际合作方面处于领先地位,50% 以上的出版物为合作出版物。这些论文的主要发表渠道是顶级和开放获取期刊,其中《生态指标》的发表数量和引用频率均居首位。该研究的主题包括生态安全、生态系统服务、保护规划、城市增长边界、生态走廊、生态网络和绿色基础设施。研究通过 "生态安全评估--资源识别--廊道提取--效果评估 "的闭环构建过程,阐明了研究进展和差距。最后,本文提出了未来生态安全格局构建的三个主要方向:完整性、规模性和动态性。本研究有助于研究人员深入了解生态安全格局构建研究的现状,并为未来研究提供历史参考。
{"title":"Bibliometric analysis of ecological security pattern construction: Current status, evolution, and development trends","authors":"Rui Shu ,&nbsp;Guoqing Ma ,&nbsp;Yebin Zou ,&nbsp;Na Guo ,&nbsp;Huizhe Su ,&nbsp;Guiqing Zhang","doi":"10.1016/j.ecolind.2024.112754","DOIUrl":"10.1016/j.ecolind.2024.112754","url":null,"abstract":"<div><div>The construction of effective ecological security patterns is crucial for sustaining ecosystem health and preserving the functionality of ecological services. This approach is vital for improving human well-being and protecting ecological security. This study employs bibliometric analysis to examine the topic of ecological security pattern construction, with a systematic review of 823 articles published from 2000 to 2024, analyzed from quantitative and visual angles. The analysis uncovers research progress, identifies hotspots, and outlines key themes. The findings show that China has a substantial lead in publication numbers (77.02%), with Europe dominating in terms of average citations per paper. The United States, the United Kingdom, and Germany are leaders in international collaboration, with over 50% of their publications being collaborative efforts. The primary outlets for these publications are top-tier and open-access journals, with <em>Ecological Indicators</em> topping both the publication count and citation frequency. The study’s main themes encompass ecological security, ecosystem services, conservation planning, urban growth boundaries, ecological corridors, ecological networks, and green infrastructure. The study elucidates research progress and gaps through a closed-loop construction process of ecological security assessment—source identification—corridor extraction—effectiveness evaluation. Finally, the paper proposes three key directions for future ecological security pattern construction: integrity, scale, and dynamism. This study aids researchers in gaining a deeper understanding of the current state of ecological security pattern construction research and provides historical references for future studies.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112754"},"PeriodicalIF":7.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bioavailability of trace metals in sediments from Daya bay nature reserve: Spatial variation, controlling factors and the exposure risk assessment for aquatic biota 大亚湾自然保护区沉积物中痕量金属的生物利用率:水生生物群的空间变化、控制因素和暴露风险评估
IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-06 DOI: 10.1016/j.ecolind.2024.112789
Zexing Kuang , Zhen Shi , Huijuan Wang , Sen Du , Haixing Gong , Qingxia Liu , Yangguang Gu , Zhengqiu Fan , Honghui Huang , Shoubing Wang
Determining the ecological risk and environmental significance of trace metal bioavailability is critical for the sustainability of the marine environment and bioresources. The spatial variation, controlling factors and ecological risks of the bioavailability of trace metals (V, Cr, Ni, Cu, Zn, As, Cd and Pb) in Daya Bay sediments were analyzed using BCR sequential extraction and diffusive gradient in thin films (DGT). Differences in concentration distributions between the anthropogenic impact zone (AIZ) and the marine disturbance zone (MDZ) revealed the accumulation of anthropogenic metals in sediments, and that the ocean dynamic conditions promoted the release of bioavailable metals from nature sediments. Fine-grained sediments rich in organic matter possessed more bioavailable metals on the surface. The negative correlations between salinity and the non-residual fractions (F123) suggests that salinity has the potential to inhibit the bioavailability of trace metals. Risk assessment based on total concentrations and acid soluble fractions (F1) showed that Cd was the dominant contributing element to the potential ecological risks with 55.8 %. The evaluation via DGT-labile concentrations indicated that Cu was the element of priority concern for aquatic exposure risk with a risk probability of 7.45 %, and the joint risk probability for metal mixture toxicity was 12.27 %. The exposure risk for aquatic biota was shown as molluscs (9.37 %) > algae (6.82 %) > crustaceans (6.21 %) > invertebrates (6.07 %) > fish (2.61 %). The results provide new clues for risk assessment and management of trace metals in coastal sediments.
确定痕量金属生物利用率的生态风险和环境意义对于海洋环境和生物资源的可持续性至关重要。利用 BCR 顺序萃取和薄膜扩散梯度(DGT)分析了大亚湾沉积物中痕量金属(Ⅴ、铬、镍、铜、锌、砷、镉和铅)生物利用率的空间变化、控制因素和生态风险。人为影响区(AIZ)和海洋扰动区(MDZ)之间的浓度分布差异显示了人为金属在沉积物中的积累,海洋动力条件促进了生物可利用金属从自然沉积物中的释放。富含有机物的细粒度沉积物表面具有更多的生物可利用金属。盐度与非残留馏分(F123)之间的负相关表明,盐度有可能抑制痕量金属的生物利用率。基于总浓度和酸溶性馏分(F1)的风险评估表明,镉是造成潜在生态风险的主要元素,占 55.8%。通过 DGTabile 浓度进行的评估表明,铜是水生生物接触风险的重点关注元素,风险概率为 7.45%,金属混合物毒性的联合风险概率为 12.27%。水生生物群的暴露风险分别为软体动物(9.37%)、藻类(6.82%)、甲壳动物(6.21%)、无脊椎动物(6.07%)和鱼类(2.61%)。这些结果为沿海沉积物中痕量金属的风险评估和管理提供了新的线索。
{"title":"Bioavailability of trace metals in sediments from Daya bay nature reserve: Spatial variation, controlling factors and the exposure risk assessment for aquatic biota","authors":"Zexing Kuang ,&nbsp;Zhen Shi ,&nbsp;Huijuan Wang ,&nbsp;Sen Du ,&nbsp;Haixing Gong ,&nbsp;Qingxia Liu ,&nbsp;Yangguang Gu ,&nbsp;Zhengqiu Fan ,&nbsp;Honghui Huang ,&nbsp;Shoubing Wang","doi":"10.1016/j.ecolind.2024.112789","DOIUrl":"10.1016/j.ecolind.2024.112789","url":null,"abstract":"<div><div>Determining the ecological risk and environmental significance of trace metal bioavailability is critical for the sustainability of the marine environment and bioresources. The spatial variation, controlling factors and ecological risks of the bioavailability of trace metals (V, Cr, Ni, Cu, Zn, As, Cd and Pb) in Daya Bay sediments were analyzed using BCR sequential extraction and diffusive gradient in thin films (DGT). Differences in concentration distributions between the anthropogenic impact zone (AIZ) and the marine disturbance zone (MDZ) revealed the accumulation of anthropogenic metals in sediments, and that the ocean dynamic conditions promoted the release of bioavailable metals from nature sediments. Fine-grained sediments rich in organic matter possessed more bioavailable metals on the surface. The negative correlations between salinity and the non-residual fractions (F123) suggests that salinity has the potential to inhibit the bioavailability of trace metals. Risk assessment based on total concentrations and acid soluble fractions (F1) showed that Cd was the dominant contributing element to the potential ecological risks with 55.8 %. The evaluation via DGT-labile concentrations indicated that Cu was the element of priority concern for aquatic exposure risk with a risk probability of 7.45 %, and the joint risk probability for metal mixture toxicity was 12.27 %. The exposure risk for aquatic biota was shown as molluscs (9.37 %) &gt; algae (6.82 %) &gt; crustaceans (6.21 %) &gt; invertebrates (6.07 %) &gt; fish (2.61 %). The results provide new clues for risk assessment and management of trace metals in coastal sediments.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112789"},"PeriodicalIF":7.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A framework of composite factors for assessing ecosystem service supply drivers: A sustainable socio-ecological perspective 评估生态系统服务供应驱动因素的综合因素框架:可持续社会生态视角
IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-06 DOI: 10.1016/j.ecolind.2024.112811
Chang You , Hongjiao Qu , Luo Guo
Studying the coupled relationship between social-ecological systems (SES) provides a more comprehensive understanding of the impact of human activity on ecosystems, thereby facilitating the formulation of more rational environmental protection policies. A deeper understanding of this relationship can promote the sustainable utilization and management of the environment. With its abundant natural resources, Ganzhou City represents the most typical ecological location in the southern hilly region of China. In this study, we constructed a sustainable framework for composite factors to analyze their effects on the ecosystem services supply (ESS). This framework emphasizes the positive roles assessment indicators such as water, forests, lakes, grasslands, and governance have on ESS, which are directly linked to the objectives of Sustainable Development Goal (SDG) 15, which include forest conservation, biodiversity maintenance, and water resource management. The results indicate that: (1) From 2005 to 2020, the overall ESS index in the central and western regions of Ganzhou showed a trend of being lower in the north and higher in the south, with areas outside the central and western regions showing a yearly increase. (2) Water, forest, lake, grassland, and governance indicators have a positive impact on the total ESS, while indicators such as mountains, sand, society, and actors have a negative impact. (3) From 2005 to 2020, the coupling coordination relationship in the central-northern and southern regions of Ganzhou gradually strengthened, with most areas shifting from a dysfunctional state to a low coupling state. By 2030, the total ESS index in counties such as Ningdu, Yudu, Huichang, Chongyi, and Xunwu is expected to decline. Some northeastern and southern regions are projected to show an upward trend by 2035. This study will significantly contribute to the realization of SDG 15, as it integrates closely related composite factors into a sustainable SES framework, by further delving into the factors influencing ESS and providing practical guidance for achieving SDGs.
通过研究社会生态系统(SES)之间的耦合关系,可以更全面地了解人类活动对生态系统的影响,从而有助于制定更合理的环境保护政策。加深对这种关系的理解,可以促进环境的可持续利用和管理。赣州市自然资源丰富,是中国南方丘陵地区最典型的生态区位。在本研究中,我们构建了一个可持续的复合因子框架,以分析其对生态系统服务供给(ESS)的影响。该框架强调了水、森林、湖泊、草原和治理等评估指标对生态系统服务供给的积极作用,这些指标与可持续发展目标(SDG)15(包括森林保护、生物多样性维护和水资源管理)的目标直接相关。研究结果表明(1)从 2005 年到 2020 年,赣州中西部地区ESS 总指数呈现北低南高的趋势,中西部以外地区呈逐年上升趋势。(2)水、森林、湖泊、草原、治理等指标对ESS总指数的影响为正,而山、沙、社会、行为主体等指标对ESS总指数的影响为负。(3)2005-2020 年,赣州中北部和南部地区耦合协调关系逐步增强,大部分地区由功能失调状态转为低耦合状态。预计到 2030 年,宁都、于都、会昌、崇义、寻乌等县的 ESS 总指数将有所下降。预计到 2035 年,东北部和南部部分地区将呈上升趋势。本研究将密切相关的综合因素整合到可持续的生态系统服务框架中,通过进一步深入研究影响ESS的因素,为实现可持续发展目标提供实际指导,从而为可持续发展目标15的实现做出重要贡献。
{"title":"A framework of composite factors for assessing ecosystem service supply drivers: A sustainable socio-ecological perspective","authors":"Chang You ,&nbsp;Hongjiao Qu ,&nbsp;Luo Guo","doi":"10.1016/j.ecolind.2024.112811","DOIUrl":"10.1016/j.ecolind.2024.112811","url":null,"abstract":"<div><div>Studying the coupled relationship between social-ecological systems (SES) provides a more comprehensive understanding of the impact of human activity on ecosystems, thereby facilitating the formulation of more rational environmental protection policies. A deeper understanding of this relationship can promote the sustainable utilization and management of the environment. With its abundant natural resources, Ganzhou City represents the most typical ecological location in the southern hilly region of China. In this study, we constructed a sustainable framework for composite factors to analyze their effects on the ecosystem services supply (ESS). This framework emphasizes the positive roles assessment indicators such as water, forests, lakes, grasslands, and governance have on ESS, which are directly linked to the objectives of Sustainable Development Goal (SDG) 15, which include forest conservation, biodiversity maintenance, and water resource management. The results indicate that: (1) From 2005 to 2020, the overall ESS index in the central and western regions of Ganzhou showed a trend of being lower in the north and higher in the south, with areas outside the central and western regions showing a yearly increase. (2) Water, forest, lake, grassland, and governance indicators have a positive impact on the total ESS, while indicators such as mountains, sand, society, and actors have a negative impact. (3) From 2005 to 2020, the coupling coordination relationship in the central-northern and southern regions of Ganzhou gradually strengthened, with most areas shifting from a dysfunctional state to a low coupling state. By 2030, the total ESS index in counties such as Ningdu, Yudu, Huichang, Chongyi, and Xunwu is expected to decline. Some northeastern and southern regions are projected to show an upward trend by 2035. This study will significantly contribute to the realization of SDG 15, as it integrates closely related composite factors into a sustainable SES framework, by further delving into the factors influencing ESS and providing practical guidance for achieving SDGs.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112811"},"PeriodicalIF":7.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessing agri-environmental strategies to reduce pesticide concentrations in surface drinking water sources, Coastal Charente River basin, SW France 评估减少地表饮用水源中农药浓度的农业环境战略,法国西南部夏朗德河流域沿海地区
IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-06 DOI: 10.1016/j.ecolind.2024.112802
Odile Phelpin , Françoise Vernier , Kévin Petit , David Carayon
Most surface water bodies are deteriorating, resulting in health risks and environmental damage. This study aimed to assess the performance of the modeled agri-environmental transition scenarios for restoring freshwater quality within the protection perimeter of strategic surface water drinking water catchments. Realistic agri-environmental scenarios with combined agronomic orientations were tested using a well-calibrated ecohydrological model. Their performance was quantified based on pesticide concentration reductions in freshwater bodies, focusing on temporal and spatial variability, using non-parametric tests. Our results show that it is possible to differentiate cropping mitigation scenarios according to their ability to limit pesticide transfers, taking into account the most influential biogeochemical factors in the catchment, their agronomic orientation, and their progressive implementation. Our study is also applicable to other contexts.
大多数地表水体正在恶化,导致健康风险和环境破坏。本研究旨在评估模拟农业环境过渡方案的性能,以恢复战略性地表水饮用水集水区保护范围内的淡水质量。研究利用一个经过良好校准的生态水文模型,对具有综合农艺导向的现实农业环境方案进行了测试。使用非参数检验法,根据淡水水体中农药浓度的降低情况,对这些方案的性能进行了量化,重点关注时间和空间的可变性。我们的研究结果表明,考虑到集水区最有影响的生物地球化学因素、农艺学取向以及逐步实施的情况,可以根据限制农药转移的能力来区分不同的种植减缓方案。我们的研究也适用于其他情况。
{"title":"Assessing agri-environmental strategies to reduce pesticide concentrations in surface drinking water sources, Coastal Charente River basin, SW France","authors":"Odile Phelpin ,&nbsp;Françoise Vernier ,&nbsp;Kévin Petit ,&nbsp;David Carayon","doi":"10.1016/j.ecolind.2024.112802","DOIUrl":"10.1016/j.ecolind.2024.112802","url":null,"abstract":"<div><div>Most surface water bodies are deteriorating, resulting in health risks and environmental damage. This study aimed to assess the performance of the modeled agri-environmental transition scenarios for restoring freshwater quality within the protection perimeter of strategic surface water drinking water catchments. Realistic agri-environmental scenarios with combined agronomic orientations were tested using a well-calibrated ecohydrological model. Their performance was quantified based on pesticide concentration reductions in freshwater bodies, focusing on temporal and spatial variability, using non-parametric tests. Our results show that it is possible to differentiate cropping mitigation scenarios according to their ability to limit pesticide transfers, taking into account the most influential biogeochemical factors in the catchment, their agronomic orientation, and their progressive implementation. Our study is also applicable to other contexts.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"169 ","pages":"Article 112802"},"PeriodicalIF":7.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of short-term nitrogen addition, watering, and mowing on soil nematode community in poisonous weed type degraded grasslands 短期加氮、浇水和除草对毒草型退化草地土壤线虫群落的影响
IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-01 DOI: 10.1016/j.ecolind.2024.112782
Shuqi Liu , Dong Cui , Jianghui Liu , Zhenxing Bian
Global changes in nitrogen deposition, precipitation patterns and land use could have an impact on soil biotas. Soil nematodes are important indicators of ecosystem function in degraded grasslands, and how global climate change affect soil nematode communities in degraded grasslands with poisonous weeds needs further study. This study conducted a control experiment on degraded grasslands with Sophora alopecuroides as a single dominant species. We set up a total of eight treatments, which are no nitrogen, no watering, no mowing (CK), nitrogen addition (N treatment), watering (W treatment), mowing (M treatment), nitrogen × watering (NW treatment), nitrogen × mowing (NM treatment), watering × mowing (WM treatment), nitrogen × watering × mowing (NWM treatment). We analyzed the patterns of change in nematode abundance, richness, ecological indices, and co-occurrence networks, as well as the relationships among nematode trophic taxa, soil salinity, and plants. Our results showed that: (1) Paratylenchus and Acrobeles were the main dominant genera. NW treatment significantly increased the relative abundance of plant parasites and significantly decreased the relative abundance of bacterivores. (2) N and NWM treatments increased nematode community network complexity. W, M, and WM treatments decreased nematode community network complexity. (3) Plant Parasites and Bacterivores nematodes community composition were significantly correlated with the structural characteristics of S. alopecuroides (biomass, height, coverage; biomass, height). Fungivores nematodes and Omnivores/Predators nematodes community composition were significantly correlated with soil salinity ions (Cl-, Mg2+; SO42-). (4) The average degree (characterizing the interaction intensity among nematodes genera and sparsity-density of the nematode ecological network) was significantly positively correlated with soil multifunctionality. In addition, the interaction of nitrogen and watering addition on the abundance of different feeding nematodes than nitrogen and watering addition alone. Mowing can alleviate the negative effects of nitrogen addition and watering on soil food webs. Our study suggested that there are complex interactions between soil nematodes and environmental factors in grassland ecosystems, and provided new insights for understanding the impact of global change on the formation and change of soil fauna diversity in poisonous weed type degraded grasslands.
全球氮沉降、降水模式和土地利用的变化可能会对土壤生物产生影响。土壤线虫是退化草地生态系统功能的重要指标,全球气候变化如何影响有毒草的退化草地的土壤线虫群落需要进一步研究。本研究在以槐树为单一优势物种的退化草地上进行了对照实验。我们共设置了八个处理,分别是无氮、无浇水、无割草(CK)、加氮(N 处理)、浇水(W 处理)、割草(M 处理)、氮×浇水(NW 处理)、氮×割草(NM 处理)、浇水×割草(WM 处理)、氮×浇水×割草(NWM 处理)。我们分析了线虫丰度、富集度、生态指数和共生网络的变化规律,以及线虫营养类群、土壤盐分和植物之间的关系。我们的研究结果表明(1) 主要优势种属为副线虫(Paratylenchus)和线虫(Acrobeles)。NW处理明显增加了植物寄生虫的相对丰度,明显降低了细菌寄生虫的相对丰度。(2) N 和 NWM 处理增加了线虫群落网络的复杂性。W、M 和 WM 处理降低了线虫群落网络的复杂性。(3)植物寄生虫和细菌线虫群落组成与 S. alopecuroides 的结构特征(生物量、高度、覆盖率;生物量、高度)显著相关。食真菌线虫和杂食/捕食线虫群落组成与土壤盐分离子(Cl-、Mg2+、SO42-)有明显相关性。(4)平均度(表征线虫属间的相互作用强度和线虫生态网络的稀疏密度)与土壤多功能性呈显著正相关。此外,与单独施氮和浇水相比,施氮和浇水对不同取食线虫丰度的交互作用。刈割可以减轻施氮和浇水对土壤食物网的负面影响。我们的研究表明,草地生态系统中土壤线虫与环境因子之间存在复杂的相互作用,为理解全球变化对毒草型退化草地土壤动物多样性的形成和变化的影响提供了新的见解。
{"title":"Effects of short-term nitrogen addition, watering, and mowing on soil nematode community in poisonous weed type degraded grasslands","authors":"Shuqi Liu ,&nbsp;Dong Cui ,&nbsp;Jianghui Liu ,&nbsp;Zhenxing Bian","doi":"10.1016/j.ecolind.2024.112782","DOIUrl":"10.1016/j.ecolind.2024.112782","url":null,"abstract":"<div><div>Global changes in nitrogen deposition, precipitation patterns and land use could have an impact on soil biotas. Soil nematodes are important indicators of ecosystem function in degraded grasslands, and how global climate change affect soil nematode communities in degraded grasslands with poisonous weeds needs further study. This study conducted a control experiment on degraded grasslands with <em>Sophora alopecuroides</em> as a single dominant species. We set up a total of eight treatments, which are no nitrogen, no watering, no mowing (CK), nitrogen addition (N treatment), watering (W treatment), mowing (M treatment), nitrogen × watering (NW treatment), nitrogen × mowing (NM treatment), watering × mowing (WM treatment), nitrogen × watering × mowing (NWM treatment). We analyzed the patterns of change in nematode abundance, richness, ecological indices, and co-occurrence networks, as well as the relationships among nematode trophic taxa, soil salinity, and plants. Our results showed that: (1) <em>Paratylenchus</em> and <em>Acrobeles</em> were the main dominant genera. NW treatment significantly increased the relative abundance of plant parasites and significantly decreased the relative abundance of bacterivores. (2) N and NWM treatments increased nematode community network complexity. W, M, and WM treatments decreased nematode community network complexity. (3) Plant Parasites and Bacterivores nematodes community composition were significantly correlated with the structural characteristics of <em>S. alopecuroides</em> (biomass, height, coverage; biomass, height). Fungivores nematodes and Omnivores/Predators nematodes community composition were significantly correlated with soil salinity ions (Cl<sup>-</sup>, Mg<sup>2+</sup>; SO<sub>4</sub><sup>2-</sup>). (4) The average degree (characterizing the interaction intensity among nematodes genera and sparsity-density of the nematode ecological network) was significantly positively correlated with soil multifunctionality. In addition, the interaction of nitrogen and watering addition on the abundance of different feeding nematodes than nitrogen and watering addition alone. Mowing can alleviate the negative effects of nitrogen addition and watering on soil food webs. Our study suggested that there are complex interactions between soil nematodes and environmental factors in grassland ecosystems, and provided new insights for understanding the impact of global change on the formation and change of soil fauna diversity in poisonous weed type degraded grasslands.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"168 ","pages":"Article 112782"},"PeriodicalIF":7.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research progress and prospects for constructing ecological security pattern based on ecological network 基于生态网络构建生态安全格局的研究进展与展望
IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-01 DOI: 10.1016/j.ecolind.2024.112800
Xu Dong , Fang Wang , Meichen Fu
As global ecological problems become increasingly prominent, the construction of ecological security pattern (ESP) has become particularly important for ensuring regional ecological security, coordinating social and economic development, and improving the livelihood and well-being of people. ESP construction based on source-resistance surface-corridor-node information has become the main research paradigm. In this study, the literature analysis method is employed to obtain relevant ESP research results systematically from the perspectives of conceptual connotations, construction methods, evaluations and regulations. The conclusions are as follows: (1) Over time, dynamic pattern construction has become a research hotspot; spatially, less attention has been given to areas with multi-scale and cross-administrative boundary. (2) The ESP construction method is relatively mature, but shortcomings remain, such as the neglect of small-scale but important ecological sources, insufficient consideration of species living habits, lack of research on corridor heterogeneity, and inadequate field surveys and visits. (3) Qualitative ESP evaluation focuses on analyzing the rationality and accuracy of the delineated ecological sources. In contrast, quantitative ESP evaluation focuses on the connectivity, accessibility and robustness of ecological network (EN), which has been more widely applied. Multilevel regulation can promote the implementation of ESP. Future research should focus on (1) selecting ecosystem services on the basis of local conditions and considering trade-offs and synergistic relationships, (2) deepening research on the spatiotemporal evolution of ecosystem services and accurate construction of EN, and (3) introducing machine learning to achieve intelligent ESP construction. This paper provides directions for future research, outlines new ideas for the systematic and rigorous construction of ESP and promotes more in-depth and practical global ecological civilization construction.
随着全球生态问题的日益突出,生态安全格局(ESP)的构建对于保障区域生态安全、协调社会经济发展、改善民生福祉显得尤为重要。基于源-阻力面-廊道-节点信息的生态安全格局构建已成为主要的研究范式。本研究采用文献分析法,从概念内涵、构建方法、评价与规范等方面系统地获取了ESP的相关研究成果。研究结论如下(1)随着时间的推移,动态格局构建已成为研究热点;从空间上看,对多尺度、跨行政边界的领域关注较少。(2)ESP 构建方法相对成熟,但仍存在一些不足,如忽视小尺度但重要的生态源、对物种生活习性考虑不足、缺乏廊道异质性研究、实地调查与考察不够等。(3)ESP定性评价侧重于分析生态源划定的合理性和准确性。相比之下,定量ESP评价侧重于生态网络(EN)的连通性、可达性和稳健性,应用更为广泛。多层次监管可促进 ESP 的实施。未来的研究重点应放在:(1)因地制宜选择生态系统服务,考虑权衡和协同关系;(2)深化生态系统服务时空演化研究,精确构建生态网络;(3)引入机器学习,实现智能化的生态系统服务系统构建。本文为今后的研究指明了方向,为系统、严谨地构建ESP勾勒了新思路,推动全球生态文明建设更加深入和务实。
{"title":"Research progress and prospects for constructing ecological security pattern based on ecological network","authors":"Xu Dong ,&nbsp;Fang Wang ,&nbsp;Meichen Fu","doi":"10.1016/j.ecolind.2024.112800","DOIUrl":"10.1016/j.ecolind.2024.112800","url":null,"abstract":"<div><div>As global ecological problems become increasingly prominent, the construction of ecological security pattern (ESP) has become particularly important for ensuring regional ecological security, coordinating social and economic development, and improving the livelihood and well-being of people. ESP construction based on source-resistance surface-corridor-node information has become the main research paradigm. In this study, the literature analysis method is employed to obtain relevant ESP research results systematically from the perspectives of conceptual connotations, construction methods, evaluations and regulations. The conclusions are as follows: (1) Over time, dynamic pattern construction has become a research hotspot; spatially, less attention has been given to areas with multi-scale and cross-administrative boundary. (2) The ESP construction method is relatively mature, but shortcomings remain, such as the neglect of small-scale but important ecological sources, insufficient consideration of species living habits, lack of research on corridor heterogeneity, and inadequate field surveys and visits. (3) Qualitative ESP evaluation focuses on analyzing the rationality and accuracy of the delineated ecological sources. In contrast, quantitative ESP evaluation focuses on the connectivity, accessibility and robustness of ecological network (EN), which has been more widely applied. Multilevel regulation can promote the implementation of ESP. Future research should focus on (1) selecting ecosystem services on the basis of local conditions and considering trade-offs and synergistic relationships, (2) deepening research on the spatiotemporal evolution of ecosystem services and accurate construction of EN, and (3) introducing machine learning to achieve intelligent ESP construction. This paper provides directions for future research, outlines new ideas for the systematic and rigorous construction of ESP and promotes more in-depth and practical global ecological civilization construction.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"168 ","pages":"Article 112800"},"PeriodicalIF":7.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Ecological Indicators
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1