首页 > 最新文献

应用生态学报最新文献

英文 中文
Application of species distribution models in predicting the distribution of marine macrobenthos. 应用物种分布模型预测海洋大型底栖生物的分布。
Q3 Environmental Science Pub Date : 2024-09-18 DOI: 10.13287/j.1001-9332.202409.029
Jia-Yi Cong, Xin-Zheng Li, Yong Xu

Species distribution models (SDMs) are valuable tools in predicting species distribution ranges and the suitable habitats, which are based on environmental conditions and species distribution data. These models encompass correlative models, mechanistic models, and mechanistic-correlative models. In the field of marine science, SDMs have been extensively used for predicting the spatial distribution patterns of various marine organisms including fish, mammals, algae, et al. However, the application of SDMs in predicting the distribution of macrobenthos remains scarce. Understanding the distribution of macrobenthos, the integral components of marine ecosystems, has significant implications for ecological conservation and resource management. We reviewed common methodologies employed in SDMs and presented case studies using different models to predict the distribution patterns of marine macrobenthos. Further, we emphasized the use of correlative and mechanistic models to analyze the impact of climate change on the spatial distribution of marine macrobenthos. Finally, we discussed the challenges and prospects associated with SDMs. With the advances in remote sensing technology and modeling techniques, SDMs are becoming increasingly pivotal in marine ecological research, which could offer a robust scientific foundation for addressing climate change and preserving marine biodiversity.

物种分布模型(SDM)是根据环境条件和物种分布数据预测物种分布范围和适宜生境的重要工具。这些模型包括相关模型、机理模型和机理-相关模型。在海洋科学领域,SDM 已被广泛用于预测各种海洋生物(包括鱼类、哺乳动物、藻类等)的空间分布模式。大型底栖生物是海洋生态系统不可或缺的组成部分,了解大型底栖生物的分布对生态保护和资源管理具有重要意义。我们回顾了数据和元数据管理中使用的常见方法,并介绍了使用不同模型预测海洋大型底栖生物分布模式的案例研究。此外,我们还强调使用相关模型和机理模型来分析气候变化对海洋大型底栖生物空间分布的影响。最后,我们讨论了与数据和元数据相关的挑战和前景。随着遥感技术和建模技术的进步,SDM 在海洋生态研究中的作用日益重要,可为应对气候变化和保护海洋生物多样性提供坚实的科学基础。
{"title":"Application of species distribution models in predicting the distribution of marine macrobenthos.","authors":"Jia-Yi Cong, Xin-Zheng Li, Yong Xu","doi":"10.13287/j.1001-9332.202409.029","DOIUrl":"10.13287/j.1001-9332.202409.029","url":null,"abstract":"<p><p>Species distribution models (SDMs) are valuable tools in predicting species distribution ranges and the suitable habitats, which are based on environmental conditions and species distribution data. These models encompass correlative models, mechanistic models, and mechanistic-correlative models. In the field of marine science, SDMs have been extensively used for predicting the spatial distribution patterns of various marine organisms including fish, mammals, algae, <i>et al</i>. However, the application of SDMs in predicting the distribution of macrobenthos remains scarce. Understanding the distribution of macrobenthos, the integral components of marine ecosystems, has significant implications for ecological conservation and resource management. We reviewed common methodologies employed in SDMs and presented case studies using different models to predict the distribution patterns of marine macrobenthos. Further, we emphasized the use of correlative and mechanistic models to analyze the impact of climate change on the spatial distribution of marine macrobenthos. Finally, we discussed the challenges and prospects associated with SDMs. With the advances in remote sensing technology and modeling techniques, SDMs are becoming increasingly pivotal in marine ecological research, which could offer a robust scientific foundation for addressing climate change and preserving marine biodiversity.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"35 9","pages":"2392-2400"},"PeriodicalIF":0.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influences and mechanisms of iron input for methane productions in peatlands. 泥炭地甲烷产生的铁输入影响和机制。
Q3 Environmental Science Pub Date : 2024-09-18 DOI: 10.13287/j.1001-9332.202409.016
Xin-Yi Hu, Hong-Yan Wang, Tian Zhan, Yi-Jie Xu, Guo-Xin Sun, Zhi-Guo Yu

Atmospheric deposition provides a stable iron source for peatlands. The influences of Fe input on methane (CH4) productions and the underlying mechanisms remain unclear. We conducted a microcosm experiment with peat sediments collected from the Qinghai-Tibet Plateau of China to explore the effects of ferrihydrite reductionfor CH4 productions in peatlands by using geochemical analyses including 57Fe Mössbauer spectroscopy and three-dimensional fluorescence spectroscopy (3D-EEM) in combination with high-throughput sequencing of 16S rRNA and real-time fluorescence quantitative PCR (qPCR). Results showed that ferrihydrite reduction significantly increased CH4 production, being 30 times of that under the control. Selective extractions for iron oxides and 57Fe Mössbauer spectroscopy measurements revealed that no crystalline secondary iron minerals were formed during the ferrihydrite reduction process. The addition of ferrihydrite enhanced the degradation of dissolved organic matter (DOM) in peat soil, resulting in a reduction in the concentration of dissolved organic carbon (DOC). Furthermore, the relative abundance of typical fermentative microorganisms in peat sediments, including Acidobacteriota and Bacteroidota, significantly increased. Such a result indicated that reduction of ferrihydrite accelerated organic matter decomposition and increased substrate concentration required for methanogenesis. Furthermore, a co-increase in relative abundance of Geobacter, Geothrix, and Methanobacterium in the ferrihydrite-amended group suggested a potential synergistic interaction that may promote the CH4 production. Our results demonstrated that ferrihydrite reduction could significantly enhance CH4 production and play a vital role in regulating CH4 emissions in peatlands.

大气沉降为泥炭地提供了稳定的铁源。铁的输入对甲烷(CH4)生成的影响及其内在机制仍不清楚。我们利用从中国青藏高原采集的泥炭沉积物进行了微观世界实验,通过地球化学分析,包括 57Fe 莫斯鲍尔光谱和三维荧光光谱(3D-EEM),结合 16S rRNA 高通量测序和实时荧光定量 PCR(qPCR),探讨了铁水还原对泥炭地 CH4 产出的影响。结果表明,亚铁酸盐还原显著提高了 CH4 产量,是对照组的 30 倍。铁氧化物的选择性萃取和 57Fe Mössbauer 光谱测量显示,在铁水盐还原过程中没有形成结晶的次生铁矿物。添加亚铁后,泥炭土中溶解有机物(DOM)的降解速度加快,导致溶解有机碳(DOC)浓度降低。此外,泥炭沉积物中典型的发酵微生物(包括酸性菌群和类菌群)的相对丰度显著增加。这一结果表明,亚铁的减少加速了有机物的分解,增加了甲烷生成所需的底物浓度。此外,铁水酸盐改良组中 Geobacter、Geothrix 和 Methanobacterium 的相对丰度同时增加,表明可能存在协同作用,促进了 CH4 的产生。我们的研究结果表明,亚铁酸盐还原可显著提高 CH4 产量,并在泥炭地的 CH4 排放调节中发挥重要作用。
{"title":"Influences and mechanisms of iron input for methane productions in peatlands.","authors":"Xin-Yi Hu, Hong-Yan Wang, Tian Zhan, Yi-Jie Xu, Guo-Xin Sun, Zhi-Guo Yu","doi":"10.13287/j.1001-9332.202409.016","DOIUrl":"10.13287/j.1001-9332.202409.016","url":null,"abstract":"<p><p>Atmospheric deposition provides a stable iron source for peatlands. The influences of Fe input on methane (CH<sub>4</sub>) productions and the underlying mechanisms remain unclear. We conducted a microcosm experiment with peat sediments collected from the Qinghai-Tibet Plateau of China to explore the effects of ferrihydrite reductionfor CH<sub>4</sub> productions in peatlands by using geochemical analyses including <sup>57</sup>Fe Mössbauer spectroscopy and three-dimensional fluorescence spectroscopy (3D-EEM) in combination with high-throughput sequencing of 16S rRNA and real-time fluorescence quantitative PCR (qPCR). Results showed that ferrihydrite reduction significantly increased CH<sub>4</sub> production, being 30 times of that under the control. Selective extractions for iron oxides and <sup>57</sup>Fe Mössbauer spectroscopy measurements revealed that no crystalline secondary iron minerals were formed during the ferrihydrite reduction process. The addition of ferrihydrite enhanced the degradation of dissolved organic matter (DOM) in peat soil, resulting in a reduction in the concentration of dissolved organic carbon (DOC). Furthermore, the relative abundance of typical fermentative microorganisms in peat sediments, including Acidobacteriota and Bacteroidota, significantly increased. Such a result indicated that reduction of ferrihydrite accelerated organic matter decomposition and increased substrate concentration required for methanogenesis. Furthermore, a co-increase in relative abundance of <i>Geobacter</i>, <i>Geothrix</i>, and <i>Methanobacterium</i> in the ferrihydrite-amended group suggested a potential synergistic interaction that may promote the CH<sub>4</sub> production. Our results demonstrated that ferrihydrite reduction could significantly enhance CH<sub>4</sub> production and play a vital role in regulating CH<sub>4</sub> emissions in peatlands.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"35 9","pages":"2599-2608"},"PeriodicalIF":0.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research advance in effects of solar radiation on litter decomposition in terrestrial ecosystems. 太阳辐射对陆地生态系统中垃圾分解影响的研究进展。
Q3 Environmental Science Pub Date : 2024-09-18 DOI: 10.13287/j.1001-9332.202409.009
Juan-Juan Zhang, Xing-Zhi Li, Ya-Nan Wang, Jiao-Jiao Deng, Li Zhou, Wang-Ming Zhou, Da-Pao Yu, Qing-Wei Wang

Litter decomposition significantly influences the carbon (C) dynamics of terrestrial ecosystems. Solar radiation is not only essential for photosynthetic C fixation and primary productivity, but also can directly or indirectly promote litter decomposition through photodegradation. Recently, photodegradation has been identified as a key factor driving litter decomposition and potentially impacts terrestrial C cycle. To enrich and develop the theory of litter decomposition, we summarized the mechanisms and main driving factors of photodegradation, and compared the responses of photodegradation to environment and climate changes at different scales. Photodegradation primarily includes photomineralization, photoinhibition, and photofaciliation, each affecting litter decomposition differently under various environmental conditions. Photodegradation is closely related to factors such as solar radiation, litter traits, temperature, moisture, microorganisms, and vegetation cover. The interactions among these factors complicate the patterns of photodegradation. Finally, we identified the main issues in litter photodegradation research and prospected future research directions. We emphasized the needs for in-depth exploration of photodegradation pathways and intrinsic mechanisms, quantification of its interactive effects with environmental factors, and optimization of traditional carbon turnover models.

废弃物的分解对陆地生态系统的碳(C)动态有重大影响。太阳辐射不仅对光合作用固定碳和初级生产力至关重要,而且还能通过光降解直接或间接地促进垃圾分解。最近,光降解被认为是推动垃圾分解的一个关键因素,并可能对陆地碳循环产生影响。为了丰富和发展垃圾分解理论,我们总结了光降解的机理和主要驱动因素,并比较了不同尺度下光降解对环境和气候变化的响应。光降解主要包括光矿化、光抑制和光和解,在不同环境条件下对垃圾分解的影响各不相同。光降解与太阳辐射、垃圾特性、温度、湿度、微生物和植被覆盖等因素密切相关。这些因素之间的相互作用使得光降解的模式变得更加复杂。最后,我们指出了垃圾光降解研究中的主要问题,并展望了未来的研究方向。我们强调了深入探索光降解途径和内在机制、量化光降解与环境因素的交互影响以及优化传统碳周转模型的必要性。
{"title":"Research advance in effects of solar radiation on litter decomposition in terrestrial ecosystems.","authors":"Juan-Juan Zhang, Xing-Zhi Li, Ya-Nan Wang, Jiao-Jiao Deng, Li Zhou, Wang-Ming Zhou, Da-Pao Yu, Qing-Wei Wang","doi":"10.13287/j.1001-9332.202409.009","DOIUrl":"10.13287/j.1001-9332.202409.009","url":null,"abstract":"<p><p>Litter decomposition significantly influences the carbon (C) dynamics of terrestrial ecosystems. Solar radiation is not only essential for photosynthetic C fixation and primary productivity, but also can directly or indirectly promote litter decomposition through photodegradation. Recently, photodegradation has been identified as a key factor driving litter decomposition and potentially impacts terrestrial C cycle. To enrich and develop the theory of litter decomposition, we summarized the mechanisms and main driving factors of photodegradation, and compared the responses of photodegradation to environment and climate changes at different scales. Photodegradation primarily includes photomineralization, photoinhibition, and photofaciliation, each affecting litter decomposition differently under various environmental conditions. Photodegradation is closely related to factors such as solar radiation, litter traits, temperature, moisture, microorganisms, and vegetation cover. The interactions among these factors complicate the patterns of photodegradation. Finally, we identified the main issues in litter photodegradation research and prospected future research directions. We emphasized the needs for in-depth exploration of photodegradation pathways and intrinsic mechanisms, quantification of its interactive effects with environmental factors, and optimization of traditional carbon turnover models.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"35 9","pages":"2463-2472"},"PeriodicalIF":0.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research progress on physiological processes-based tree-ring width models of Vaganov-Shashkin (VS)and VS-Lite. 基于生理过程的 Vaganov-Shashkin (VS) 和 VS-Lite 树环宽度模型的研究进展。
Q3 Environmental Science Pub Date : 2024-08-01 DOI: 10.13287/j.1001-9332.202408.005
Hui-Yue Yan, Xiao-Min Zeng, Yu Xue, Xiao-Hong Liu

The Vaganov-Shashkin (VS) and VS-Lite models are the most widely used physiological processes-based models of tree-ring width. Both models can reveal the intrinsic response mechanism between tree-ring width and external climate factors. The VS model is commonly applied in climate reconstruction, wood phenology prediction, and the simulation of cambial activity, while the VS-Lite model is primarily applied in forecasting growth trends of forest. We collected papers related to the VS and VS-Lite models published between 2005 and 2023, and reviewed the fundamental principles, parameter settings, and historical development of both models, as well as the their applications in research areas of dendroclimatology, xylem phenology, and forest ecology. Then, we summarized the current issues with the models and proposed future research directions. To increase confidence in the simulation results, it is essential to optimize the parameter adjustment method of the models, consider the impact of multiple environmental factors on the physiological processes of trees, and strengthen the comparative study of the VS and VS-Lite model with other vegetation ecological models.

瓦加诺夫-沙希金(VS)模型和 VS-Lite 模型是应用最广泛的基于生理过程的树环宽度模型。这两个模型都能揭示树环宽度与外部气候因子之间的内在反应机制。VS 模型通常应用于气候重建、木材物候预测和树皮活动模拟,而 VS-Lite 模型则主要应用于森林生长趋势预测。我们收集了 2005 年至 2023 年间发表的与 VS 和 VS-Lite 模型相关的论文,回顾了这两种模型的基本原理、参数设置、历史发展,以及它们在树木气候学、木质部物候学和森林生态学等研究领域的应用。然后,我们总结了模型目前存在的问题,并提出了未来的研究方向。为了提高模拟结果的可信度,必须优化模型的参数调整方法,考虑多种环境因素对树木生理过程的影响,并加强 VS 和 VS-Lite 模型与其他植被生态模型的对比研究。
{"title":"Research progress on physiological processes-based tree-ring width models of Vaganov-Shashkin (VS)and VS-Lite.","authors":"Hui-Yue Yan, Xiao-Min Zeng, Yu Xue, Xiao-Hong Liu","doi":"10.13287/j.1001-9332.202408.005","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202408.005","url":null,"abstract":"<p><p>The Vaganov-Shashkin (VS) and VS-Lite models are the most widely used physiological processes-based models of tree-ring width. Both models can reveal the intrinsic response mechanism between tree-ring width and external climate factors. The VS model is commonly applied in climate reconstruction, wood phenology prediction, and the simulation of cambial activity, while the VS-Lite model is primarily applied in forecasting growth trends of forest. We collected papers related to the VS and VS-Lite models published between 2005 and 2023, and reviewed the fundamental principles, parameter settings, and historical development of both models, as well as the their applications in research areas of dendroclimatology, xylem phenology, and forest ecology. Then, we summarized the current issues with the models and proposed future research directions. To increase confidence in the simulation results, it is essential to optimize the parameter adjustment method of the models, consider the impact of multiple environmental factors on the physiological processes of trees, and strengthen the comparative study of the VS and VS-Lite model with other vegetation ecological models.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"35 8","pages":"2256-2266"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research progress on the effects of elevated atmospheric CO2 concentration on CH4 emission and related microbial processes in paddy fields. 大气二氧化碳浓度升高对稻田甲烷排放及相关微生物过程影响的研究进展。
Q3 Environmental Science Pub Date : 2024-08-01 DOI: 10.13287/j.1001-9332.202408.029
Mao-Hui Tian, Li-Dong Shen, Wei-Ci Su

Paddy fields are recognized as significant sources of methane (CH4) emissions, playing a pivotal role in global climate change. Elevated atmospheric carbon dioxide (CO2) concentrations (e[CO2]) exert a profound influence on the carbon cycling of paddy fields. Understanding the effects of e[CO2] on CH4 emissions, as well as the underlying microbial processes, is crucial for enhancing carbon sequestration and reducing emissions in paddy fields. We reviewed the impacts of e[CO2] on CH4 emission in paddy fields, focusing on the activity, abundance, community structure, and diversity of carbon-cycling-related microbes. We also delineated the roles of various microbial processes in mitigating CH4 emissions under e[CO2], as well as the primary environmental determinants. Overall, the type of e[CO2] experimental platforms, duration of fumigation, concentration gradients, and the methods of CO2 enrichment all influence CH4 emissions from paddy fields. e[CO2] initially stimulates CH4 emissions, which may decrease over time, indicating an adaptability of the methane-emitting microbial community to e[CO2]. This response exhibits a trend of initial attenuation followed by an intensification of the positive effects on CH4 emissions. Experiments with abrupt increase of CO2 concentration might overestimate CH4 emissions. The impact of e[CO2] on microbial processes is predominantly characterized by enhanced activities and abundance of methanogens, aerobic and anaerobic methanotrophs. It significantly alters the community composition and diversity of methanotrophs, with minimal effects on methanogens and anaerobic methanotrophic communities. Finally, we outlined future research directions: 1) Integrated investigations into the effects of e[CO2] on CH4 emissions, methanogenesis, and both aerobic and anaerobic methanotrophs in paddy fields could elucidate the mechanisms underlying the impacts of climate change on CH4 emissions; 2) Long-term studies are essential to understand the mechanisms of e[CO2] on CH4 emissions and associated microbial processes more accurately and realistically; 3) Multi-scale (temporal and spatial), multi-factorial (CO2 concentration, temperature, atmospheric nitrogen deposition, and water management practices), and multi-methodological (observational, data, and model integration) research is necessary to effectively reduce the uncertainties in assessing the response of CH4 emissions in paddy fields and related microbial processes to e[CO2] under future climate change scenarios.

稻田被认为是甲烷(CH4)的重要排放源,在全球气候变化中起着举足轻重的作用。大气中二氧化碳(CO2)浓度(e[CO2])的升高对稻田的碳循环产生了深远的影响。了解 e[CO2] 对 CH4 排放的影响以及潜在的微生物过程,对于加强稻田固碳和减少排放至关重要。我们回顾了 e[CO2] 对水稻田中 CH4 排放的影响,重点研究了与碳循环相关的微生物的活性、丰度、群落结构和多样性。我们还描述了在 e[CO2] 条件下各种微生物过程在减缓 CH4 排放中的作用,以及主要的环境决定因素。总之,e[CO2]实验平台的类型、熏蒸持续时间、浓度梯度和二氧化碳富集方法都会影响水稻田的甲烷排放。e[CO2]最初会刺激甲烷排放,但随着时间的推移可能会减少,这表明甲烷排放微生物群落对 e[CO2] 的适应性很强。这种反应表现出一种趋势,即开始时会减弱,随后对 CH4 排放的积极影响会加强。二氧化碳浓度突然增加的实验可能会高估甲烷的排放量。e[CO2]对微生物过程的影响主要表现为甲烷菌、好氧和厌氧甲烷营养体的活性和丰度增强。它极大地改变了养甲烷生物群落的组成和多样性,而对甲烷菌和厌氧养甲烷生物群落的影响则微乎其微。最后,我们概述了未来的研究方向:1)综合研究 e[CO2] 对水稻田中 CH4 排放、甲烷生成以及好氧和厌氧养甲烷菌的影响,可以阐明气候变化对 CH4 排放的影响机制;2)长期研究对于更准确、更真实地了解 e[CO2] 对 CH4 排放及相关微生物过程的影响机制至关重要;3)有必要开展多尺度(时间和空间)、多因子(二氧化碳浓度、温度、大气氮沉降和水管理措施)和多方法(观测、数据和模型集成)的研究,以有效减少评估未来气候变化情景下稻田中 CH4 排放及相关微生物过程对 e[CO2] 的响应的不确定性。
{"title":"Research progress on the effects of elevated atmospheric CO<sub>2</sub> concentration on CH<sub>4</sub> emission and related microbial processes in paddy fields.","authors":"Mao-Hui Tian, Li-Dong Shen, Wei-Ci Su","doi":"10.13287/j.1001-9332.202408.029","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202408.029","url":null,"abstract":"<p><p>Paddy fields are recognized as significant sources of methane (CH<sub>4</sub>) emissions, playing a pivotal role in global climate change. Elevated atmospheric carbon dioxide (CO<sub>2</sub>) concentrations (e[CO<sub>2</sub>]) exert a profound influence on the carbon cycling of paddy fields. Understanding the effects of e[CO<sub>2</sub>] on CH<sub>4</sub> emissions, as well as the underlying microbial processes, is crucial for enhancing carbon sequestration and reducing emissions in paddy fields. We reviewed the impacts of e[CO<sub>2</sub>] on CH<sub>4</sub> emission in paddy fields, focusing on the activity, abundance, community structure, and diversity of carbon-cycling-related microbes. We also delineated the roles of various microbial processes in mitigating CH<sub>4</sub> emissions under e[CO<sub>2</sub>], as well as the primary environmental determinants. Overall, the type of e[CO<sub>2</sub>] experimental platforms, duration of fumigation, concentration gradients, and the methods of CO<sub>2</sub> enrichment all influence CH<sub>4</sub> emissions from paddy fields. e[CO<sub>2</sub>] initially stimulates CH<sub>4</sub> emissions, which may decrease over time, indicating an adaptability of the methane-emitting microbial community to e[CO<sub>2</sub>]. This response exhibits a trend of initial attenuation followed by an intensification of the positive effects on CH<sub>4</sub> emissions. Experiments with abrupt increase of CO<sub>2</sub> concentration might overestimate CH<sub>4</sub> emissions. The impact of e[CO<sub>2</sub>] on microbial processes is predominantly characterized by enhanced activities and abundance of methanogens, aerobic and anaerobic methanotrophs. It significantly alters the community composition and diversity of methanotrophs, with minimal effects on methanogens and anaerobic methanotrophic communities. Finally, we outlined future research directions: 1) Integrated investigations into the effects of e[CO<sub>2</sub>] on CH<sub>4</sub> emissions, methanogenesis, and both aerobic and anaerobic methanotrophs in paddy fields could elucidate the mechanisms underlying the impacts of climate change on CH<sub>4</sub> emissions; 2) Long-term studies are essential to understand the mechanisms of e[CO<sub>2</sub>] on CH<sub>4</sub> emissions and associated microbial processes more accurately and realistically; 3) Multi-scale (temporal and spatial), multi-factorial (CO<sub>2</sub> concentration, temperature, atmospheric nitrogen deposition, and water management practices), and multi-methodological (observational, data, and model integration) research is necessary to effectively reduce the uncertainties in assessing the response of CH<sub>4</sub> emissions in paddy fields and related microbial processes to e[CO<sub>2</sub>] under future climate change scenarios.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"35 8","pages":"2267-2281"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of key areas for ecological restoration of territorial space based on ecological security pattern analysis: A case study of the Taihu Lake city cluster. 基于生态安全格局分析的国土空间生态修复重点区域识别:太湖城市群案例研究。
Q3 Environmental Science Pub Date : 2024-08-01 DOI: 10.13287/j.1001-9332.202408.019
Heng Kan, Guan-Qiao Ding, Jie Guo, Jiang Liu, Ming-Hao Ou

The identification of key areas for ecological restoration of national land space based on the ecological security pattern is an important way to balance environmental protection and social development in the new era. With the Taihu Lake city cluster as the study area, we identified the ecological source from both structural and functional aspects, and used the minimum cumulative resistance model to identify the ecological corridors on the basis of constructing the resistance surface. Coupled the landscape ecological risk evaluation, we determined the appropriate width of each ecological corridor in the study area, identified the key restoration zones through the circuit theory. Then, we constructed the ecological security pattern of "six zones and four belts" and controlled by zoning. The results showed that the 32 ecological source areas in the Taihu Lake city cluster presented a spatial pattern of "more in the east and less in the west-mountains and lakes are connected" and 70 ecological corridors were concentrated in the west and the center. The suitable width of most of the ecological corridors was 1500-2000 m. The ecological restoration zones of the national land space were concentrated in the eastern part of the Lake Taihu, Changxing County, and Liyang City. According to the characteristics of the study area and the actual situation of the restoration area, we proposed specific protection and restoration measures, such as protecting the core ecological source, optimizing and restoring the important corridors, and reasonably planning land use of the ecological pinch points and obstacle points.

基于生态安全格局确定国土空间生态修复重点区域,是新时期平衡环境保护与社会发展的重要途径。以太湖城市群为研究区域,从结构和功能两方面识别生态源,在构建阻力面的基础上,利用最小累积阻力模型识别生态廊道。结合景观生态风险评价,确定研究区内各生态廊道的适宜宽度,通过回路理论确定重点修复区。进而构建了 "六区四带 "的生态安全格局,并进行分区控制。结果表明,太湖城市群 32 个生态源区呈现 "东多西少-山湖相连 "的空间格局,70 条生态廊道集中在西部和中部。国土空间生态修复区主要集中在太湖东部、长兴县和溧阳市。根据研究区的特点和修复区的实际情况,提出了保护核心生态源、优化修复重要廊道、合理规划生态夹点和障碍点的土地利用等具体保护和修复措施。
{"title":"Identification of key areas for ecological restoration of territorial space based on ecological security pattern analysis: A case study of the Taihu Lake city cluster.","authors":"Heng Kan, Guan-Qiao Ding, Jie Guo, Jiang Liu, Ming-Hao Ou","doi":"10.13287/j.1001-9332.202408.019","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202408.019","url":null,"abstract":"<p><p>The identification of key areas for ecological restoration of national land space based on the ecological security pattern is an important way to balance environmental protection and social development in the new era. With the Taihu Lake city cluster as the study area, we identified the ecological source from both structural and functional aspects, and used the minimum cumulative resistance model to identify the ecological corridors on the basis of constructing the resistance surface. Coupled the landscape ecological risk evaluation, we determined the appropriate width of each ecological corridor in the study area, identified the key restoration zones through the circuit theory. Then, we constructed the ecological security pattern of \"six zones and four belts\" and controlled by zoning. The results showed that the 32 ecological source areas in the Taihu Lake city cluster presented a spatial pattern of \"more in the east and less in the west-mountains and lakes are connected\" and 70 ecological corridors were concentrated in the west and the center. The suitable width of most of the ecological corridors was 1500-2000 m. The ecological restoration zones of the national land space were concentrated in the eastern part of the Lake Taihu, Changxing County, and Liyang City. According to the characteristics of the study area and the actual situation of the restoration area, we proposed specific protection and restoration measures, such as protecting the core ecological source, optimizing and restoring the important corridors, and reasonably planning land use of the ecological pinch points and obstacle points.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"35 8","pages":"2217-2227"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evolution characteristics and meteorological impacts of ecosystem regulation service functions in Jiangxi Province, China from 2000 to 2022. 2000 年至 2022 年中国江西省生态系统调节服务功能的演变特征和气象影响。
Q3 Environmental Science Pub Date : 2024-08-01 DOI: 10.13287/j.1001-9332.202408.022
Yuan Zhou, Yun Cao, Yue Qian, Yan-Ling Chen, Fang-Yun Dai, Ying-Long Sun

Jiangxi Province is one of the first ecological civilization demonstration provinces in China. Understan-ding the impacts of meteorological conditions on ecosystem regulatory services is beneficial for conducting ecological protection and restoration work. Based on MODIS data, net primary productivity data, and monthly meteorological data from 2000 to 2022, we used models such as water balance equation and soil loss equation to measure the four regulatory service functions of ecosystem in Jiangxi Province, including carbon sequestration, oxygen release, water conservation and soil conservation. We used trend analysis and partial correlation analysis methods to analyze the spatio-temporal patterns and meteorological influencing factors of those four regulation service functions. The results showed that from 2000 to 2022, the annual average values of carbon sequestration and oxygen release in Jiangxi Province were 178.8 and 130.0 g·m-2, respectively, with annual increases of 0.4 and 0.3 g·m-2. The spatial distribution of both services was consistent, and the average annual carbon sequestration and oxygen release showed an upward trend in 77.3% regions of Jiangxi Province. The average water conservation and soil retention in Jiangxi Province were 591.8 mm and 723.8 t·hm-2, respectively, with similar spatial distributions. The annual increases were 5.6 mm and 3.7 t·hm-2. The soil conservation and water conservation functions of 73.3% and 69.3% regions in Jiangxi Province were steadily improved. Vegetation carbon sequestration and oxygen release was significantly correlated with temperature at monthly scale and seasonal scale. The partial correlation coefficient of those two factors was higher than other factors, which was an important meteorological factor affecting the carbon sequestration and oxygen release function of ecosystem. Precipitation, which was the most important meteorological factor, had a significant positive correlation with water conservation and soil conservation at monthly, seasonal and annual scales. Our results revealed the impacts of climate change on ecosystem regulatory service functions in Jiangxi Province from 2000 to 2022, which could provide scientific and technological support for effectively guaranteeing ecosystem protection and restoration in Jiangxi Province and improving the quality and efficiency of ecological civilization construction.

江西省是中国首批生态文明示范省之一。了解气象条件对生态系统调控服务的影响有利于开展生态保护与修复工作。基于MODIS数据、净初级生产力数据和2000-2022年的月度气象数据,利用水分平衡方程和土壤流失方程等模型,测算了江西省生态系统的固碳、释氧、保水和保土等四项调节服务功能。采用趋势分析法和偏相关分析法分析了这四种调节服务功能的时空变化规律和气象影响因素。结果表明,从 2000 年到 2022 年,江西省固碳量和释氧量的年均值分别为 178.8 和 130.0 g-m-2,年均增加 0.4 和 0.3 g-m-2。两种服务的空间分布一致,江西省 77.3%的地区年均固碳量和释氧量呈上升趋势。江西省的平均水源涵养量和土壤保持量分别为 591.8 mm 和 723.8 t-hm-2,空间分布相似。年增长率分别为 5.6 mm 和 3.7 t-hm-2。江西省分别有 73.3% 和 69.3% 的地区水土保持功能得到稳步提高。植被固碳释氧量与温度在月尺度和季尺度上显著相关。这两个因子的偏相关系数高于其他因子,是影响生态系统固碳释氧功能的重要气象因子。降水是最重要的气象因子,在月尺度、季尺度和年尺度上与水土保持和土壤保持均呈显著正相关。研究结果揭示了2000-2022年气候变化对江西省生态系统调控服务功能的影响,可为有效保障江西省生态系统保护与修复、提高生态文明建设质量和效益提供科技支撑。
{"title":"Evolution characteristics and meteorological impacts of ecosystem regulation service functions in Jiangxi Province, China from 2000 to 2022.","authors":"Yuan Zhou, Yun Cao, Yue Qian, Yan-Ling Chen, Fang-Yun Dai, Ying-Long Sun","doi":"10.13287/j.1001-9332.202408.022","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202408.022","url":null,"abstract":"<p><p>Jiangxi Province is one of the first ecological civilization demonstration provinces in China. Understan-ding the impacts of meteorological conditions on ecosystem regulatory services is beneficial for conducting ecological protection and restoration work. Based on MODIS data, net primary productivity data, and monthly meteorological data from 2000 to 2022, we used models such as water balance equation and soil loss equation to measure the four regulatory service functions of ecosystem in Jiangxi Province, including carbon sequestration, oxygen release, water conservation and soil conservation. We used trend analysis and partial correlation analysis methods to analyze the spatio-temporal patterns and meteorological influencing factors of those four regulation service functions. The results showed that from 2000 to 2022, the annual average values of carbon sequestration and oxygen release in Jiangxi Province were 178.8 and 130.0 g·m<sup>-2</sup>, respectively, with annual increases of 0.4 and 0.3 g·m<sup>-2</sup>. The spatial distribution of both services was consistent, and the average annual carbon sequestration and oxygen release showed an upward trend in 77.3% regions of Jiangxi Province. The average water conservation and soil retention in Jiangxi Province were 591.8 mm and 723.8 t·hm<sup>-2</sup>, respectively, with similar spatial distributions. The annual increases were 5.6 mm and 3.7 t·hm<sup>-2</sup>. The soil conservation and water conservation functions of 73.3% and 69.3% regions in Jiangxi Province were steadily improved. Vegetation carbon sequestration and oxygen release was significantly correlated with temperature at monthly scale and seasonal scale. The partial correlation coefficient of those two factors was higher than other factors, which was an important meteorological factor affecting the carbon sequestration and oxygen release function of ecosystem. Precipitation, which was the most important meteorological factor, had a significant positive correlation with water conservation and soil conservation at monthly, seasonal and annual scales. Our results revealed the impacts of climate change on ecosystem regulatory service functions in Jiangxi Province from 2000 to 2022, which could provide scientific and technological support for effectively guaranteeing ecosystem protection and restoration in Jiangxi Province and improving the quality and efficiency of ecological civilization construction.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"35 8","pages":"2187-2196"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Response of leaf anatomical structure of Larix gmelinii to climate warming and provenance variation. 红叶石楠的叶片解剖结构对气候变暖和产地变化的响应。
Q3 Environmental Science Pub Date : 2024-08-01 DOI: 10.13287/j.1001-9332.202408.002
Hai-Ning Zhang, Jun Zhang, Dong-Jia Zhang, Lu-Yao Li, Rui-Ping Tian, Chuan-Kuan Wang, Xian-Kui Quan

Exploring the response of leaf anatomical structure to climate warming is helpful for understanding the adaptive mechanisms of trees to climate change. We conducted a warming experiment by transplanting seedlings of Larix gmelinii from 11 provenances to two common gardens, and examined the response of leaf anatomical structure to climate warming. The results showed that warming significantly increased leaf thickness (TL), upper epidermal mesophyll thickness (TUEM), lower epidermal mesophyll thickness (TLEM), endodermal thickness (TE), vascular bundle diameter (DVB), transfer tissue thickness (TTT), and the percentage of mesophyll thickness to TL(PMT), and significantly decreased the upper epidermal thickness (TUE) and the percentage of epidermal thickness to TL (PE). The mesophyll thickness was positively associated with chlorophyll concentration and maximum net photosynthetic rate. The responses of TL, TUEM, TLEM, TE, DVB, TTT, TUE, PMT and PE to warming differed among all the provenances.As the aridity index of the original site increased, the magnitude of the warming treatment's effect decreased for TL, TUEM, TLEM, TTT and PMT, and increased for TUE and PE. Warming increased the thickness and proportion of profit tissue (e.g., mesophyll) and decreased the thickness and proportion of defensive tissue (e.g., epidermis), and those changes varied among provenances. L. gmelinii could adapt to climate warming by adjusting leaf anatomical structure, and this ability was weak for trees from provenance with high aridity index.

探索叶片解剖结构对气候变暖的响应有助于了解树木对气候变化的适应机制。我们进行了一项气候变暖实验,将11个产地的Larix gmelinii幼苗移植到两个普通园林中,考察了叶片解剖结构对气候变暖的响应。结果表明,气候变暖显著增加了叶片厚度(TL)、上表皮中叶厚度(TUEM)、下表皮中叶厚度(TLEM)、内胚层厚度(TE)、维管束直径(DVB)、转移组织厚度(TTT)和中叶厚度占TL的百分比(PMT),显著降低了上表皮厚度(TUE)和表皮厚度占TL的百分比(PE)。中叶厚度与叶绿素浓度和最大净光合速率呈正相关。所有产地的 TL、TUEM、TLEM、TE、DVB、TTT、TUE、PMT 和 PE 对升温的反应均不相同。随着原产地干旱指数的增加,升温处理对 TL、TUEM、TLEM、TTT 和 PMT 的影响程度降低,对 TUE 和 PE 的影响程度增加。升温增加了获利组织(如中叶)的厚度和比例,降低了防御组织(如表皮)的厚度和比例,这些变化在不同产地有所不同。L.gmelinii可以通过调整叶片解剖结构来适应气候变暖,而这种能力在干旱指数高的产地较弱。
{"title":"Response of leaf anatomical structure of <i>Larix gmelinii</i> to climate warming and provenance variation.","authors":"Hai-Ning Zhang, Jun Zhang, Dong-Jia Zhang, Lu-Yao Li, Rui-Ping Tian, Chuan-Kuan Wang, Xian-Kui Quan","doi":"10.13287/j.1001-9332.202408.002","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202408.002","url":null,"abstract":"<p><p>Exploring the response of leaf anatomical structure to climate warming is helpful for understanding the adaptive mechanisms of trees to climate change. We conducted a warming experiment by transplanting seedlings of <i>Larix gmelinii</i> from 11 provenances to two common gardens, and examined the response of leaf anatomical structure to climate warming. The results showed that warming significantly increased leaf thickness (T<sub>L</sub>), upper epidermal mesophyll thickness (T<sub>UEM</sub>), lower epidermal mesophyll thickness (T<sub>LEM</sub>), endodermal thickness (T<sub>E</sub>), vascular bundle diameter (D<sub>VB</sub>), transfer tissue thickness (T<sub>TT</sub>), and the percentage of mesophyll thickness to T<sub>L</sub>(P<sub>MT</sub>), and significantly decreased the upper epidermal thickness (T<sub>UE</sub>) and the percentage of epidermal thickness to T<sub>L</sub> (P<sub>E</sub>). The mesophyll thickness was positively associated with chlorophyll concentration and maximum net photosynthetic rate. The responses of T<sub>L</sub>, T<sub>UEM</sub>, T<sub>LEM</sub>, T<sub>E</sub>, D<sub>VB</sub>, T<sub>TT</sub>, T<sub>UE</sub>, P<sub>MT</sub> and P<sub>E</sub> to warming differed among all the provenances.As the aridity index of the original site increased, the magnitude of the warming treatment's effect decreased for T<sub>L</sub>, T<sub>UEM</sub>, T<sub>LEM</sub>, T<sub>TT</sub> and P<sub>MT</sub>, and increased for T<sub>UE</sub> and P<sub>E</sub>. Warming increased the thickness and proportion of profit tissue (e.g., mesophyll) and decreased the thickness and proportion of defensive tissue (e.g., epidermis), and those changes varied among provenances. <i>L. gmelinii</i> could adapt to climate warming by adjusting leaf anatomical structure, and this ability was weak for trees from provenance with high aridity index.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"35 8","pages":"2073-2081"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Difference of habitat suitability and the influencing variables between winter and summer of Procapra picticaudata in the Three-River-Source region, China. 中国三江源地区冬夏两季Procapra picticaudata栖息地适宜性差异及其影响变量
Q3 Environmental Science Pub Date : 2024-08-01 DOI: 10.13287/j.1001-9332.202408.026
Ling-Yan Yan, Li Zhang, Xiao-Biao Zhang, Ling-Qiao Kong, Xiao-Jun Kou, Zhi-Yun Ouyang, Jin-Ming Hu

Procapra picticaudata is an ungulate endemic to the Tibetan Plateau and is widely distributed in the Three-River-Source region. Predicting the seasonal variations in habitat suitability and understanding the effects of environmental variables on habitat use by this species will help formulate effective conservation strategies and clarify its niche characteristics. Based on point records of the occurrence collected during repeated field surveys in winter (January 2019) and summer (August 2019), we used MaxEnt model to predict the differences in habitat suitability and the distribution pattern of the P. picticaudata in the Three-River-Source region using eight preselected environmental variables. We further explored the influence of those variables on the P. picticaudata' distribution pattern using environmental response curves. The results showed that the average area under the receiving operator curve values in winter and summer was 0.901±0.023 and 0.882±0.024, respectively, with a good accuracy of fitness. The total area of suitable habitat for P. picticaudata in winter and summer was 6.83×104 and 9.78×104 km2, respectively. The area of suitable habitats in summer increased significantly compared with winter. There was a tendency for P. picticaudata to spread to the south of the Yangtze River Source Park and the Yellow River Source Park in summer. The spatial patterns of habitat suitability in both winter and summer took Three-River-Source National Park as the high-value center and decreased around it. The seasonal average temperature, altitude, population density, and slope were the main environmental variables affecting the distribution of P. picticaudata both in winter and summer. The higher temperatures in summer allowed the suitable P. picticaudata habitats to extend into areas above 5000 m in altitude, and to areas with slopes of less than 25°, compared with winter. The expansion of human activities in summer encroached on the suitable habitat of P. picticaudata.

象鼻猴(Procapra picticaudata)是青藏高原特有的一种蹄类动物,广泛分布于三江源地区。预测栖息地适宜性的季节性变化,了解环境变量对该物种栖息地利用的影响,有助于制定有效的保护策略,明确其生态位特征。基于在冬季(2019年1月)和夏季(2019年8月)多次野外调查中收集到的出现点记录,我们利用MaxEnt模型,利用8个预选的环境变量预测了三江源地区P. picticaudata的栖息地适宜性差异和分布模式。我们还利用环境响应曲线进一步探讨了这些变量对Picticaudata分布模式的影响。结果表明,冬季和夏季接收算子曲线下的平均面积分别为(0.901±0.023)和(0.882±0.024),适生精度较高。冬夏两季Picticaudata的适宜栖息地总面积分别为6.83×104和9.78×104 km2。与冬季相比,夏季的适宜栖息地面积明显增加。在夏季,P. picticaudata 有向长江源公园和黄河源公园南部扩散的趋势。冬季和夏季的栖息地适宜性空间格局均以三江源国家公园为高值中心,并在其周围逐渐降低。季节平均气温、海拔高度、种群密度和坡度是影响冬夏鼠兔分布的主要环境变量。与冬季相比,夏季气温较高,适宜的 P. picticaudata 栖息地扩展到海拔 5000 米以上的地区和坡度小于 25° 的地区。夏季人类活动的扩大侵占了 P. picticaudata 的适宜栖息地。
{"title":"Difference of habitat suitability and the influencing variables between winter and summer of <i>Procapra picticaudata</i> in the Three-River-Source region, China.","authors":"Ling-Yan Yan, Li Zhang, Xiao-Biao Zhang, Ling-Qiao Kong, Xiao-Jun Kou, Zhi-Yun Ouyang, Jin-Ming Hu","doi":"10.13287/j.1001-9332.202408.026","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202408.026","url":null,"abstract":"<p><p><i>Procapra picticaudata</i> is an ungulate endemic to the Tibetan Plateau and is widely distributed in the Three-River-Source region. Predicting the seasonal variations in habitat suitability and understanding the effects of environmental variables on habitat use by this species will help formulate effective conservation strategies and clarify its niche characteristics. Based on point records of the occurrence collected during repeated field surveys in winter (January 2019) and summer (August 2019), we used MaxEnt model to predict the differences in habitat suitability and the distribution pattern of the <i>P. picticaudata</i> in the Three-River-Source region using eight preselected environmental variables. We further explored the influence of those variables on the <i>P. picticaudata</i>' distribution pattern using environmental response curves. The results showed that the average area under the receiving operator curve values in winter and summer was 0.901±0.023 and 0.882±0.024, respectively, with a good accuracy of fitness. The total area of suitable habitat for <i>P. picticaudata</i> in winter and summer was 6.83×10<sup>4</sup> and 9.78×10<sup>4</sup> km<sup>2</sup>, respectively. The area of suitable habitats in summer increased significantly compared with winter. There was a tendency for <i>P. picticaudata</i> to spread to the south of the Yangtze River Source Park and the Yellow River Source Park in summer. The spatial patterns of habitat suitability in both winter and summer took Three-River-Source National Park as the high-value center and decreased around it. The seasonal average temperature, altitude, population density, and slope were the main environmental variables affecting the distribution of <i>P. picticaudata</i> both in winter and summer. The higher temperatures in summer allowed the suitable <i>P. picticaudata</i> habitats to extend into areas above 5000 m in altitude, and to areas with slopes of less than 25°, compared with winter. The expansion of human activities in summer encroached on the suitable habitat of <i>P. picticaudata</i>.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"35 8","pages":"2055-2062"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of long-term tillage on the soil organic carbon storage and its composition in black soil. 长期耕作对黑土中土壤有机碳储量及其组成的影响
Q3 Environmental Science Pub Date : 2024-08-01 DOI: 10.13287/j.1001-9332.202408.012
Sheng-Tao Tian, Yang Luo, Peng-Xiang Sui, Hao Wang, Ying Ren, Si-Qi Zhou, Hai-Feng Liu, Jin-Yu Zheng

Soil organic carbon (SOC) is essential for maintaining soil fertility and promoting sustainable agricultu-ral development. We investigated the impact of long-term tillage practices on soil organic carbon storage (SOCS) and its components in dryland farming areas of the black soil region, based on a 39-year tillage practice experiment. We compared the effects of different tillage practices (conventional rotary and ridge tillage, CT; no-tillage, NT; subsoiling tillage, ST; moldboard plowing, MP) on SOCS, active organic carbon components, and microbial necromass carbon (MNC) content in the 0-40 cm soil layer. The results showed that, compared to CT, NT significantly increased the contents of SOCS, SOC, dissolved organic carbon (DOC), microbial biomass carbon (MBC), easily oxidizable organic carbon (EOC), and MNC in the 0-20 cm soil layer. Both ST and MP significantly improved the contents of SOCS, SOC, and EOC in 0-20 and 20-40 cm soil layers compared to CT and increased MBC content in the 20-40 cm soil layer. Additionally, MP treatment significantly improved the contents of DOC, particulate organic carbon, and MNC in the 20-40 cm soil layer compared to other treatments. ST and MP significantly reduced the contribution rate of MNC to SOC in both soil layers compared to CT and NT treatments. Results of structural equation modeling showed that enhancing the mean weight diameter of soil aggregates, field capacity, and total phosphorus content, along with increasing the activities of β-glucosidase, amylase, and lignin peroxidase, could promote MNC accumulation. MP treatment facilitated the uniform distribution of SOC, active organic carbon, and MNC in the 0-40 cm soil layer, which was more conducive to the fixation of SOC in farmland in the black soil region.

土壤有机碳(SOC)对保持土壤肥力和促进农业可持续发展至关重要。我们基于一项为期 39 年的耕作实践实验,研究了黑土区旱地耕作区长期耕作实践对土壤有机碳储量(SOCS)及其组分的影响。我们比较了不同耕作方式(常规旋耕和脊耕,CT;免耕,NT;底耕,ST;模板耕,MP)对 0-40 厘米土层中土壤有机碳储量、活性有机碳组分和微生物新质碳(MNC)含量的影响。结果表明,与 CT 相比,NT 显著增加了 0-20 cm 土层中 SOCS、SOC、溶解有机碳(DOC)、微生物生物量碳(MBC)、易氧化有机碳(EOC)和 MNC 的含量。与 CT 相比,ST 和 MP 均能明显提高 0-20 厘米和 20-40 厘米土层中的 SOCS、SOC 和 EOC 含量,并增加 20-40 厘米土层中的 MBC 含量。此外,与其他处理相比,MP 处理明显提高了 20-40 厘米土层中 DOC、颗粒有机碳和 MNC 的含量。与 CT 和 NT 处理相比,ST 和 MP 明显降低了两个土层中 MNC 对 SOC 的贡献率。结构方程模型的结果表明,提高土壤团聚体的平均重量直径、田间容重和总磷含量,同时提高β-葡萄糖苷酶、淀粉酶和木质素过氧化物酶的活性,可促进 MNC 的积累。MP 处理有利于 SOC、活性有机碳和 MNC 在 0-40 厘米土层中的均匀分布,更有利于黑土区农田中 SOC 的固定。
{"title":"Impact of long-term tillage on the soil organic carbon storage and its composition in black soil.","authors":"Sheng-Tao Tian, Yang Luo, Peng-Xiang Sui, Hao Wang, Ying Ren, Si-Qi Zhou, Hai-Feng Liu, Jin-Yu Zheng","doi":"10.13287/j.1001-9332.202408.012","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202408.012","url":null,"abstract":"<p><p>Soil organic carbon (SOC) is essential for maintaining soil fertility and promoting sustainable agricultu-ral development. We investigated the impact of long-term tillage practices on soil organic carbon storage (SOCS) and its components in dryland farming areas of the black soil region, based on a 39-year tillage practice experiment. We compared the effects of different tillage practices (conventional rotary and ridge tillage, CT; no-tillage, NT; subsoiling tillage, ST; moldboard plowing, MP) on SOCS, active organic carbon components, and microbial necromass carbon (MNC) content in the 0-40 cm soil layer. The results showed that, compared to CT, NT significantly increased the contents of SOCS, SOC, dissolved organic carbon (DOC), microbial biomass carbon (MBC), easily oxidizable organic carbon (EOC), and MNC in the 0-20 cm soil layer. Both ST and MP significantly improved the contents of SOCS, SOC, and EOC in 0-20 and 20-40 cm soil layers compared to CT and increased MBC content in the 20-40 cm soil layer. Additionally, MP treatment significantly improved the contents of DOC, particulate organic carbon, and MNC in the 20-40 cm soil layer compared to other treatments. ST and MP significantly reduced the contribution rate of MNC to SOC in both soil layers compared to CT and NT treatments. Results of structural equation modeling showed that enhancing the mean weight diameter of soil aggregates, field capacity, and total phosphorus content, along with increasing the activities of β-glucosidase, amylase, and lignin peroxidase, could promote MNC accumulation. MP treatment facilitated the uniform distribution of SOC, active organic carbon, and MNC in the 0-40 cm soil layer, which was more conducive to the fixation of SOC in farmland in the black soil region.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"35 8","pages":"2167-2175"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
应用生态学报
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