Ecological Engineering最新文献_第5页

Stochastic assembly and increased beta-diversity driven by turf stripping in alpine grasslands 高寒草地草皮剥落驱动的随机组合与β -多样性增加

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-12-11 DOI: 10.1016/j.ecoleng.2025.107865

Miroslav Zeidler , Jan Šipoš , Jan Černohorský , Marek Banaš

Alpine and subalpine ecosystems in Central Europe represent refugia for cold-adapted and endemic species that have been significantly affected by climate change and atmospheric nitrogen deposition in recent decades. The abandonment of traditional agricultural practices has led to homogenization of plant communities and biodiversity decline. This study evaluates the ecological impacts of two short-term management interventions – repeated mowing and turf stripping - on alpine grassland communities affected by warming and nitrogen enrichment.

The research was conducted in a Central European mountain range on 30 plots divided into three groups: mowing (10 plots), turf stripping (10 plots), and control plots (10 plots). Mowing was conducted annually from 2018 to 2022, while turf stripping was performed once in 2018. Vegetation species composition was assessed in 2017, 2019, 2021, and 2023. Soil and biomass were analysed, alpha and beta diversity were measured, and community assembly mechanisms were studied using null-model approaches.

Turf stripping significantly decreased alpha diversity while markedly increasing beta diversity. In contrast, five years of annual mowing had no significant effect on species richness or beta diversity. The analysis revealed that stochastic community assembly processes dominated in turf stripping plots, while deterministic processes prevailed in mowing plots. The thickness of the humus layer emerged as a key factor influencing species richness.

The study demonstrated that neither extensive mowing nor one-time turf stripping represents an ideal strategy for rapidly restoring environmental conditions and increasing alpha diversity in long-term unmanaged alpine grasslands. Annual mowing over five years was insufficient in both intensity and duration, while turf stripping substantially altered community structure but recovery was limited to a small number of common plant species.

近几十年来，中欧高寒和亚高山生态系统是冷适应物种和特有物种的避难所，这些物种受到气候变化和大气氮沉降的显著影响。传统农业实践的放弃导致了植物群落的同质化和生物多样性的下降。本研究评估了重复刈割和草皮剥离两种短期管理干预措施对受气候变暖和氮富集影响的高寒草地群落的生态影响。该研究在中欧山脉的30个地块上进行，分为三组：割草（10个地块），草皮剥离（10个地块）和对照（10个地块）。从2018年到2022年，每年进行一次割草，2018年进行一次草坪剥离。在2017年、2019年、2021年和2023年对植被物种组成进行了评估。利用零模型方法分析了土壤和生物量，测量了α和β多样性，并研究了群落组装机制。剥皮显著降低α多样性，显著增加β多样性。相比之下，5年的刈割对物种丰富度和beta多样性没有显著影响。分析表明，草皮剥落地群落聚集过程以随机过程为主，割草地群落聚集过程以确定性过程为主。腐殖质层厚度是影响物种丰富度的关键因素。研究表明，无论是大规模的割草还是一次性的草皮剥离，都不是快速恢复环境条件和增加长期无人管理的高山草原α多样性的理想策略。5年以上的年度刈割在强度和持续时间上都不够，而草皮剥离大大改变了群落结构，但恢复仅限于少数常见植物物种。

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引用次数: 0

Riparian ecosystem service supply–demand matching and its multi-scale responses to urbanisation 河岸生态系统服务供需匹配及其对城市化的多尺度响应

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-12-09 DOI: 10.1016/j.ecoleng.2025.107867

Zihan Zhu , Yuan Zeng , Jian Ye , Yangyang Lu , Changran Sun , Guohua Fang

Riparian zones, critical transitional zones between terrestrial and aquatic ecosystems, perform indispensable ecological functions in supporting and regulating ecosystem services. However, against the backdrop of ongoing urbanisation, rising demand and limited supply have led to increasingly pronounced mismatches, posing challenges to regional sustainable development. Considering the Jiangsu section of the Yangtze River as a representative area, an analytical framework was developed in this study to assess ecosystem service supply–demand relationships and the level of urbanisation across five spatial scales. Furthermore, the study reveals supply–demand matching patterns and the intensity of multi-scale responses of riparian ecosystem services to urbanisation, identifies key spatial scales, and provides targeted recommendations to balance ecological protection and socio-economic development. The findings of this study revealed the following: (1) significant spatial heterogeneity, with severe deficits in carbon sequestration and food provisioning, forming upstream-surplus/downstream-deficit and peripheral-surplus/central-deficit patterns; (2) a clear scale effect in supply–demand mismatch, showing a ‘decrease–then–increase’ trend in spatial aggregation, primarily driven by urban expansion and land use change; (3) a strong negative correlation between urbanisation and the supply–demand ratio, which intensifies with spatial scale, with HL- and LH-type zones at 10,000 m and district levels showing the strongest responses—critical scales for coordinated development; (4) A three-tier spatial governance model—comprising 10,000 m grids, district boundaries, and 100 m fine-resolution units—is recommended to optimise riparian ecological planning through scale-specific governance strategies.

河岸带是陆地生态系统和水生生态系统之间的关键过渡带，在支持和调节生态系统服务方面发挥着不可或缺的生态功能。然而，在城市化进程不断推进的背景下，供需矛盾日益突出，对区域可持续发展构成挑战。以长江江苏段为代表，构建了长江流域生态系统服务供需关系和城市化水平的分析框架。此外，研究还揭示了城市化对河岸生态系统服务的供需匹配模式和多尺度响应强度，确定了关键空间尺度，并提出了平衡生态保护和社会经济发展的针对性建议。研究结果表明：(1)空间异质性显著，碳汇和食物供给严重不足，形成上游富余/下游亏缺和外围富余/中心亏缺格局；②供需失配的规模效应明显，空间集聚呈现先减少后增加的趋势，主要受城市扩张和土地利用变化的驱动；(3)城镇化与供需比呈显著负相关，且随空间尺度的增大而增强，其中万m和区级的HL型和HL型区域对协同发展的响应最为强烈；(4)提出了1万m网格、区域边界和100 m精细分辨率单元的三层空间治理模型，通过特定尺度的治理策略优化河岸生态规划。

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引用次数: 0

Can phytoremediation effectively restore damaged ecosystems in desert steppe open coal mines? An evaluation based on soil nematodes 荒漠草原露天煤矿植被修复能否有效恢复生态系统？基于土壤线虫的评价

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-12-09 DOI: 10.1016/j.ecoleng.2025.107877

Zhiwei Gao , Meiqing Jia , Chaowei Han , Jinfeng Mi , Jing Huang , Guogang Zhang , Guodong Han

Generally, how ecological restoration projects affect soil in desert steppe open-pit mining areas is not comprehensively evaluated. This study focused on an open-pit coal mine on the Loess Plateau, Inner Mongolia, China, examining soil physicochemical properties and nematode community composition under three treatments: phytoremediation, natural restoration, and a native vegetation treatment. High-throughput sequencing yielded a total of 141,318 soil nematode DNA sequences belonging to 16 genera. Our analysis suggests that the genera Aphelenchoides, Paratylenchus, Tripylina, Oxydirus, Cervidellus, Nothacrobeles, and Acrobeles may be key indicators of nematode communities in ecosystems that have been damaged by open-pit coal mines, as suggested by LEfSe multi-level discriminant analysis. Redundancy analysis indicated that pH, electrical conductivity, organic matter content, total carbon, total nitrogen, nitrate, and ammonium nitrogen may have been key limiting factors in the soil restoration process. Under the phytoremediation treatment, soil physicochemical properties, diversity, community composition, the relative abundances of different trophic groups, and ecological indices were significantly improved relative to natural restoration. Phytoremediation is very likely to offer greater potential for future recovery than natural restoration. This study helps to deepen the understanding of the restoration mechanism of desert steppe mining areas.

目前，荒漠草原露天矿生态修复工程对土壤的影响尚未得到全面评价。以内蒙古黄土高原某露天煤矿为研究对象，研究了植物修复、自然修复和原生植被处理下的土壤理化性质和线虫群落组成。高通量测序共获得土壤线虫16属141318条DNA序列。分析结果表明，在露天煤矿破坏的生态系统中，Aphelenchoides属、Paratylenchus属、Tripylina属、Oxydirus属、Cervidellus属、Nothacrobeles属和Acrobeles属可能是线虫群落的关键指标。冗余分析表明，pH、电导率、有机质含量、全碳、全氮、硝态氮和铵态氮可能是土壤恢复过程中的关键限制因素。土壤理化性质、多样性、群落组成、不同营养类群的相对丰度、生态指标等均较自然修复有显著改善。植物修复很可能比自然修复提供更大的未来恢复潜力。本研究有助于加深对荒漠草原矿区恢复机制的认识。

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引用次数: 0

Environmental tradeoffs of urban stream restoration in Fairfax County, Virginia 弗吉尼亚州费尔法克斯县城市河流修复的环境权衡

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-12-05 DOI: 10.1016/j.ecoleng.2025.107866

Aaron J. Porter , Christoper M. Ruck , Spencer J. Tassone

Regulatory mandates to improve water quality and stream health have driven substantial investment in stream restoration. Most projects aim to improve channel-floodplain connectivity, reduce sediment erosion, and enhance habitat for aquatic organisms, yet few include adequate pre- and post-restoration monitoring to assess outcomes. Since 2007, Fairfax County, Virginia, and the U.S. Geological Survey have partnered to monitor and evaluate water-quality conditions in Flatlick Branch. In 2018, a 1.72-km reach of stream above the monitoring station was restored using a Natural Channel Design approach. This study applied the Stream Functions Pyramid (SFP) framework to evaluate restoration tradeoffs. Post-restoration, watershed hydrology remained largely unchanged, but channel modifications increased flow capacity, reduced velocity, and further disconnected the channel from the floodplain. Nutrient and sediment reductions exceeded expected amounts, but the removal of over 20 % of riparian tree canopy increased physicochemical variability and the frequency and magnitude of water temperature heatwaves. Post-restoration, state standards for low dissolved oxygen and elevated pH were exceeded 2.5 and 7.5 times more often, respectively. Gross primary production and ecosystem respiration increased and organic matter sources supporting metabolism shifted from allochthonous to autochthonous. Trends in several benthic macroinvertebrate metrics, which were improving prior to construction, have since plateaued or declined, and the fish assemblage shifted from a native minnow dominated community to non-native, warmwater tolerant taxa. This study highlights the need for comprehensive assessments of stream restoration and benefits of using the SFP to understand the consequences and possible tradeoffs of different ecosystem management decisions.

改善水质和河流健康的监管规定推动了对河流恢复的大量投资。大多数项目旨在改善河道与泛滥平原的连通性，减少泥沙侵蚀，改善水生生物的栖息地，但很少有项目包括充分的修复前后监测以评估结果。自2007年以来，弗吉尼亚州费尔法克斯县和美国地质调查局合作监测和评估弗拉特利克分局的水质状况。2018年，监测站上方1.72公里长的河流采用自然河道设计方法恢复。本研究应用流函数金字塔（SFP）框架来评估恢复的权衡。修复后，流域水文基本保持不变，但河道改造增加了流量，降低了流速，并进一步使河道与洪泛区分离。营养物和沉积物的减少超过了预期，但超过20%的河岸树冠的去除增加了物理化学变异以及水温热浪的频率和强度。修复后，低溶解氧和高pH值分别超过国家标准2.5倍和7.5倍。总初级生产和生态系统呼吸增加，支持代谢的有机质来源从外来转移到本地。一些大型底栖无脊椎动物指标在建设之前一直在改善，但现在已经趋于平稳或下降，鱼类组合从以本地小鱼为主的群落转变为非本地的、耐温水的分类群。本研究强调需要对河流恢复和使用SFP的好处进行全面评估，以了解不同生态系统管理决策的后果和可能的权衡。

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引用次数: 0

Event- and annual-scale precipitation extremes enhance groundwater recharge at the ecological restoration catchment of hilly and gully region 事件尺度和年尺度的极端降水增强了丘陵沟壑区生态恢复集水区地下水补给

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-12-05 DOI: 10.1016/j.ecoleng.2025.107868

Meina He , Yunqiang Wang , Yali Zhao , Li Wang , Ziliang Zhang , Yi Song , Pingping Zhang , Zimin Li

Precipitation extremes and ecological restoration projects significantly influenced hydrological processes by mitigating or aggravating groundwater depletion within the Earth's critical zone. However, scientific evidence remains limited due to the strong dependence of deep recharge on both unsaturated zone thickness and precipitation event magnitude. Here, we analyzed seven-year field datasets encompassing precipitation, soil water content (SWC), surface water (reservoir water), and groundwater from an ecological restoration catchment on the Chinese Loess Plateau. Precipitation extremes triggered deep hydraulic connectivity between the unsaturated and saturated zones mainly through preferential flow pathways, as evidenced by depleted of δ¹⁸O, increased of SWC profiles, and rising water table. Temporal-spatial patterns of SWC (0–4000 cm profile) revealed preferential flow pathways on a sunny slope with recharge efficiency regulated by precipitation patterns and topography. In the gully, water tables showed a positive correlation with precipitation amount, duration, and initial SWC. These hydrological drivers induced significant differences in water table changes among precipitation years. In contrast, the slope (0–500 cm profile) maintained persistent water deficits with limited recharge response, despite precipitation inputs (except for a 167.7-mm event). Furthermore, precipitation variability coupled with plant root uptake altered the vertical soil water gradient, with the 200–300 cm layer functioning as a hydraulic buffer. However, prolonged drought triggered an accelerated water table recession at 60.8 mm/year, while creating carry-over soil water deficits that extended beyond dry years, sustaining 15.4 mm/year depletion even in the following normal year. When considering the saturated zone contribution, total recharge rates demonstrated the positive hydrological feedback of ecological restoration projects to annual precipitation, accounting for 45 % of precipitation (327.8 mm/year) during a wet year. Therefore, it can be inferred that event- and annual-scale precipitation extremes enhance groundwater recharge at the ecological restoration catchment. These findings provide critical scientific support for maintaining groundwater sustainability in such systems.

极端降水和生态恢复项目通过减轻或加剧地球临界带内地下水枯竭而显著影响水文过程。然而，由于深层补给对非饱和带厚度和降水事件量级的依赖性较强，科学证据仍然有限。在此，我们分析了中国黄土高原生态恢复集水区7年的降水、土壤含水量（SWC）、地表水（水库水）和地下水数据。极端降水主要通过优先流动通道触发非饱和带和饱和带之间的深层水力连通性，表现为δ18O耗竭、SWC剖面增加和地下水位上升。0 ~ 4000 cm剖面SWC的时空格局揭示了阳坡上的优先流动路径，补给效率受降水模式和地形的调节。沟壑区地下水位与降水量、持续时间、初始SWC呈显著正相关。这些水文驱动因素导致不同降水年的地下水位变化存在显著差异。相比之下，尽管有降水输入（167.7 mm事件除外），坡度（0-500 cm剖面）保持了持续的水分亏缺，补给响应有限。此外，降水变异与植物根系吸收的耦合改变了土壤垂直水分梯度，200-300 cm土层起着水力缓冲的作用。然而，长期干旱导致地下水位以60.8毫米/年的速度加速下降，同时造成干旱年之后持续的土壤水分不足，即使在下一个正常年份也保持15.4毫米/年的耗损。在考虑饱和带贡献的情况下，生态恢复工程的总补给率对年降水表现出正的水文反馈，在湿润年占降水的45% （327.8 mm/年）。因此，事件尺度和年尺度的极端降水增强了生态恢复集水区地下水补给。这些发现为在这些系统中保持地下水的可持续性提供了重要的科学支持。

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引用次数: 0

Quantifying supply and demand relationships of ecological products provides insights for environmental management 量化生态产品的供需关系为环境管理提供了新的思路

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-12-05 DOI: 10.1016/j.ecoleng.2025.107864

Yuhan Huang , Jun Ren , Yuan Yuan , Rongrong Ma , Wei Zhou , Yingui Cao

The rapid development of industrialization and urbanization exerts a significant influence on the balance between the supply and demand of ecological products (EPs), while the enhancement of human well-being faces severe challenges. In this study, Qinghai Province, situated on the Qinghai-Tibet Plateau, was divided into five ecological plates: the Three-River-Source, Qaidam Basin, Qilian Mountains, Pan-Gonghe Basin, and Hehuang Valley. Based on exploratory spatial data analysis, we first assessed the supply and demand of EPs from 2000 to 2020, encompassing food production (FP), water conservation (WC), carbon sequestration (CS), soil retention (SR), and outdoor recreation (OR). Then, we constructed the ecological products supply-demand index (EPSDI) and analyzed its spatiotemporal matching and agglomeration characteristics. Finally, we revealed the spatiotemporal evolutionary differences in EPs supply and demand across different ecological plates. The results indicated that (1) Both the supply and demand of EPs showed an upward trend, with their spatial distribution exhibiting a pattern of being higher in the east and lower in the west. High-value areas of EPs were primarily distributed in the Hehuang Valley—where farmland is abundant, populations are dense, and urban development is concentrated—and in the Three-River-Source, Pan-Gonghe Basin, and Qilian Mountains—where water resources are plentiful and vegetation coverage is high. In contrast, low-value areas were mainly found in the Qaidam Basin, which features a vast area, sparse population, and predominantly arid desert landscapes. (2) The supply-demand indices for FP, WC, and OR displayed upward trends, whereas those for CS and SR showed downward trends. Areas where FP and WC supply exceeded demand tended to contract, while areas experiencing shortages of CS and OR expanded, with most of these shortage areas located in Hehuang Valley. (3) FP, WC, and SR were primarily characterized by a spatial matching pattern of “low supply and low demand”, while CS and OR were dominated by a spatial mismatch pattern of “high supply and low demand”. (4) The spatial agglomeration of EPSDI gradually intensified. With the exception of OR, whose supply-demand index was mainly characterized by low-low agglomeration, all other indices were primarily dominated by high-high agglomeration. This study offers insights for ecological protection and environmental management on the Qinghai-Tibet Plateau.

工业化和城市化的快速发展对生态产品的供需平衡产生了重大影响，人类福祉的提升面临严峻挑战。在探索性空间数据分析的基础上，本文首先评估了2000 - 2020年生态系统的供给和需求，包括粮食生产（FP）、水资源保护（WC）、碳封存（CS）、土壤保持（SR）和户外娱乐（OR）。在此基础上，构建生态产品供需指数（EPSDI），分析其时空匹配特征和集聚特征。最后，揭示了不同生态板块EPs供需的时空演化差异。结果表明：(1)EPs的供给和需求均呈上升趋势，空间分布呈现东高西低的格局；EPs高值区主要分布在农田资源丰富、人口密集、城市发展集中的河湟流域和水资源丰富、植被覆盖率高的三江源、泛共和盆地、祁连山地区。低价值区主要分布在柴达木盆地，面积广大，人口稀少，以干旱荒漠景观为主。(2) FP、WC和OR的供需指数呈上升趋势，CS和SR的供需指数呈下降趋势。计划生育和厕所供大于求的地区往往会收缩，而CS和OR短缺的地区则会扩大，这些短缺地区大多位于河湟流域。③FP、WC和SR以“低供给-低需求”的空间匹配格局为主，CS和OR以“高供给-低需求”的空间匹配格局为主。(4) EPSDI的空间集聚逐渐加剧。除OR的供需指数以低-低集聚为主外，其他指数均以高-高集聚为主。

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引用次数: 0

Impact of morphological change of a regulated gravel-bed river on downstream fish habitat following a flood 洪水后碎石河床形态变化对下游鱼类生境的影响

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-12-03 DOI: 10.1016/j.ecoleng.2025.107863

Jiyeon Jang , Byungwoong Choi , Sung-Uk Choi

Global climate change has led to recurring severe floods and droughts. Severe floods can alter the extent of river morphology, which is crucial to the river ecosystem. Morphological changes in rivers have been largely overlooked in conventional assessments of fish habitats. This study presents physical habitat simulations to investigate the impact of morphological change after a flood on fish habitats in a regulated river, using a hydro-morphodynamic model. The study reach is a 12.8 km long gravel-bed reach in the Geum-gang River, Korea. It consists of a series of bends, located downstream of the Yongdam Dam. For the physical habitat simulations, the most dominant and endemic fish species was selected as the target fish. The HEC-RAS 1D model and habitat suitability curves were used for hydro-morphodynamic and habitat simulations, respectively. The hydro-morphodynamic simulation provides information on changes in river morphology and substrate, as well as flow depth and velocity. The physical habitat simulation reveals that the quality of physical habitats for the target fish deteriorates after the flood due to increased water depth, which is associated with erosion along the study reach. This study demonstrates the potential of hydro-morphodynamic simulation for designing a sediment replenishment scheme to restore fish habitat downstream of dams.

全球气候变化导致严重的洪涝和干旱反复发生。严重的洪水可以改变河流形态的程度，这对河流生态系统至关重要。在传统的鱼类栖息地评估中，河流的形态变化在很大程度上被忽视了。本研究采用水文形态动力学模型，模拟了洪水后河流形态变化对鱼类栖息地的影响。研究的河段是位于韩国金刚江的一条长12.8公里的砾石河床。它由位于龙滩大坝下游的一系列弯道组成。在物理生境模拟中，选择最具优势和特有的鱼种作为目标鱼。采用HEC-RAS 1D模型和生境适宜性曲线分别进行水形态动力学和生境模拟。水形态动力学模拟提供了河流形态和基材变化以及水流深度和流速的信息。物理栖息地模拟结果表明，洪水过后，目标鱼类的物理栖息地质量由于水深的增加而恶化，这与研究河段的侵蚀有关。该研究证明了水形态动力学模拟在设计泥沙补给方案以恢复水坝下游鱼类栖息地方面的潜力。

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引用次数: 0

Assessment and remediation model of eco-geo-environmental conditions in arid limestone mining areas 干旱石灰岩矿区生态地质环境条件评价与修复模式

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-12-01 DOI: 10.1016/j.ecoleng.2025.107791

Siyuan Cao , Ying Yuan , Wensong Zhang , Miao Zhang , Aihong Zhou , Ningbo Han , Miren Rong

This study addresses the complexity and regional challenges of eco-geo-environmental assessment and remediation in arid limestone mining areas by proposing an innovative modular model that integrates the three-scale analytic hierarchy process, fuzzy mathematics, variable weight theory, literature review, and expert consultation. The model achieves precise classification of mining eco-geo-environmental quality through dynamic weight adjustment and multi-level fuzzy comprehensive evaluation, and designs corresponding remediation strategies based on assessment results. We have innovatively established a multi-level evaluation system comprising three primary indicators (mining ecological environment, geological environment, and disaster environment) and 21 sub-indicators, effectively resolving the adaptability limitations of traditional fixed-weight models. By determining initial weights through three-scale analytic hierarchy process and dynamically adjusting them using variable weight theory, the model significantly enhances evaluation accuracy and flexibility. The model's effectiveness was validated through a case study of the Tianjingshan open-pit limestone mining area in Zhongwei City, Ningxia. Results demonstrate high consistency between model assessments and field investigations, and the proposed integrated remediation strategy (“geological hazard elimination + soil reconstruction + vegetation restoration + artificial maintenance”) achieved a vegetation survival rate exceeding 96 %, representing approximately 20 % improvement over traditional soil replacement methods (simple topsoil covering). Through its modular design and hierarchical remediation approach, this model provides a replicable technical pathway for ecological restoration in arid limestone mines and other mining types, demonstrating significant scientific value and practical applicability.

本研究针对干旱石灰岩矿区生态地质环境评价与修复的复杂性和区域挑战，提出了一种创新的模块化模型，将三尺度层次分析法、模糊数学、变权理论、文献综述和专家咨询相结合。该模型通过动态权值调整和多级模糊综合评价实现矿山生态地质环境质量的精确分级，并根据评价结果设计相应的修复策略。创新建立了由矿山生态环境、地质环境、灾害环境三个主指标和21个子指标组成的多层次评价体系，有效解决了传统定权模型的适应性局限性。通过三尺度层次分析法确定初始权值，并利用变权值理论对初始权值进行动态调整，显著提高了评价的准确性和灵活性。以宁夏中卫市天景山露天石灰石矿区为例，验证了该模型的有效性。结果表明，模型评价与实地调查结果具有较高的一致性，提出的综合修复策略（“消除地质灾害+土壤重建+植被恢复+人工维持”）的植被成活率超过96%，比传统的土壤替代方法（简单的表土覆盖）提高了约20%。该模型通过模块化设计和分层修复方式，为干旱石灰岩矿山及其他采矿类型的生态修复提供了可复制的技术路径，具有重要的科学价值和实用性。

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引用次数: 0

Halophytes reclamation soil through improving soil structures, decreasing salinity and enhancing SOC storage in coastal saline land 滨海盐碱地盐生植物通过改善土壤结构、降低含盐量和提高有机碳储量来复垦土壤

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-11-27 DOI: 10.1016/j.ecoleng.2025.107860

Huanyu Chen , Sunan He , Ziyan Xue , Xiao Zhang , Kai Yu , Kai Wang , Angyan Ren , Jianjun Han , Xiaohui Zhao , Xiaomei Zhu , Chong Liu , Lizhou Hong , Jincheng Xing

Saline land holds significant potential for carbon sequestration and serves as a crucial reserve of arable land to address global climate change and food security. However, the impact of reclaiming saline land by using Tamarix chinensis (T. chinensis) and Suaeda salsa (S. salsa) as pioneer plants on soil structure and soil organic carbon (SOC) storage remains unclear. To clarify the effects of these two halophytes on the physicochemical properties, aggregation structure, and SOC storage of saline land, this study conducted a field experiment on plots of T. chinensis and S. salsa land that had been cultivated for five years along the coast of the Yellow Sea, with saline bare land as the control. Compared to bare land, T. chinensis was found to decrease the soil bulk density by 0.19, 0.27, and 0.1 g cm⁻³ in the 0–10, 10–20, and 20–40 cm soil depths, respectively. Furthermore, both T. chinensis and S. salsa also increased soil porosity by 18.95 % and 28.63 % in the 0–10 cm soil depth, and by 14.54 % and 23.66 % in the 10–20 cm soil depth, respectively. Both halophytes also significantly enhanced saturated hydraulic conductivity in the 0–20 cm depth. A significant negative correlation was observed between saturated hydraulic conductivity and total soil salt content, this correlation likely facilitated salt leaching, which in turn reduced soil sodium absorption ratio (SAR). Compared to bare land, T. chinensis and S. salsa significantly reduced the soil SAR by 217.01, 122.44, and 83.35 mmol L⁻¹, and 114.90, 68.63, and 25.39 mmol L⁻¹, in the 0–10, 10–20 and 20–40 cm soil depths, respectively. They also significantly increased macroaggregates percentage (> 0.25 mm), with T. chinensis exerting the most pronounced effects. Most SOC storage was concentrated in the 0–10 and 10–20 cm soil depths, and T. chinensis induced the greatest increase-2.44 and 1.97 times higher than that of bare land in these two depths, respectively. Structural equation modeling (SEM) analysis revealed that halophytes primarily promote SOC storage in saline land by increasing the soil carbon-to‑nitrogen (C/N) ratio and the proportion of macroaggregates. This study provides a theoretical basis for the improvement engineering of saline land using T. chinensis and S. salsa as pioneer plants.

盐碱地具有巨大的固碳潜力，是应对全球气候变化和粮食安全的重要耕地储备。然而，以柽柳（Tamarix chinensis）和沙绵（Suaeda salsa）为先锋植物开垦盐碱地对土壤结构和土壤有机碳（SOC）储量的影响尚不清楚。为了明确这两种盐生植物对盐碱地理化性质、聚集结构和有机碳储量的影响，本研究以黄海沿岸盐碱地为对照，在盐碱地裸地上种植了5年的中国刺槐和沙沙刺槐地块进行了田间试验。与裸地相比，在0-10、10-20和20-40 cm土层中，柽柳分别使土壤容重降低0.19、0.27和0.1 g cm−3。此外，在0 ~ 10 cm土壤深度，柽柳和莎莎分别增加了18.95%和28.63%的土壤孔隙度，在10 ~ 20 cm土壤深度，分别增加了14.54%和23.66%的土壤孔隙度。两种盐生植物均显著提高了0 ~ 20 cm深度的饱和水导率。饱和水导率与土壤总含盐量呈显著负相关，这种相关性可能促进了盐淋溶，从而降低了土壤钠吸收比（SAR）。与裸地相比，在0-10、10-20和20-40 cm土壤深度，柽柳和萨尔萨分别显著降低了217.01、122.44和83.35 mmol L−1和114.90、68.63和25.39 mmol L−1。它们也显著提高了大团聚体百分比（> 0.25 mm），其中以冬青的影响最为显著。土壤有机碳储量主要集中在0-10 cm和10-20 cm土层，其中羊草对土壤有机碳储量的增幅最大，分别是裸地的2.44倍和1.97倍。结构方程模型（SEM）分析表明，盐生植物主要通过提高土壤碳氮比（C/N）和大团聚体比例来促进土壤有机碳的储存。本研究可为盐碱地改良工程提供理论依据，可为盐碱地改良工程提供借鉴。

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引用次数: 0

Global review of eco-engineering research with recommendations for nature positive outcomes in coastal ecosystems 全球生态工程研究综述及其对沿海生态系统自然积极成果的建议

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-11-21 DOI: 10.1016/j.ecoleng.2025.107855

Ahmed K. Gad , Michael A. Rasheed , Paula J. Cartwright , Nathan J. Waltham

Coastal urbanisation and climate change pressures have intensified interest in eco-engineering solutions to enhance biodiversity and support sustainable coastal development. This study presents a systematic review of applied eco-engineering research conducted exclusively in urbanised seascapes, following PRISMA guidelines. Literature searches in Scopus, Web of Science, and ProQuest (January 1980 – June 2024) identified 6698 records, of which 128 studies met inclusion criteria. These represented 160 interventions across 26 countries spanning tropical, subtropical, and temperate zones. Interventions were categorised by design type, infrastructure, application phase (retrofit or construction), and target assemblage to evaluate ecological performance relative to unmodified controls. Results show that 143 interventions (89 %) increased species abundance or richness, whereas 17 (11 %) produced neutral or negative effects. Textured panels were most frequently applied (37 %), followed by transplantation (20 %), artificial rockpools (9 %), and pits and grooves (9 %). Simple, low-cost microhabitat additions consistently delivered positive outcomes across climate zones. Yet few studies co-reported asset-relevant engineering metrics along with the ecological part. Persistent research gaps include the absence of baseline data, long-term monitoring, cost-effectiveness assessment, and invasive-species evaluation, together with limited evidence from tropical regions. Findings demonstrate that eco-engineering provides an effective and scalable pathway to improve ecological performance of coastal infrastructure when designs are context-specific, structurally sound, and integrated into planning and retrofitting. Linking biodiversity responses with basic performance and cost information will help translate these ecological successes into widely adoptable, nature-positive coastal development.

沿海城市化和气候变化的压力使人们对生态工程解决方案的兴趣日益浓厚，以增强生物多样性和支持沿海可持续发展。本研究根据PRISMA的指导方针，对专门在城市化海景中进行的应用生态工程研究进行了系统回顾。在Scopus、Web of Science和ProQuest（1980年1月- 2024年6月）中检索到6698条文献，其中128项研究符合纳入标准。这些措施涉及热带、亚热带和温带26个国家的160项干预措施。干预措施按设计类型、基础设施、应用阶段（改造或建设）和目标组合进行分类，以评估相对于未经修改的控制措施的生态绩效。结果表明，143种（89%）干预措施增加了物种丰度或丰富度，17种（11%）干预措施产生了中性或负面影响。最常用的是纹理面板（37%），其次是移植（20%），人工岩池（9%）和坑槽（9%）。简单、低成本的微生境增加在各个气候带都能带来积极的结果。然而，很少有研究将与资产相关的工程指标与生态部分一起报告。持续存在的研究差距包括缺乏基线数据、长期监测、成本效益评估和入侵物种评估，以及来自热带地区的有限证据。研究结果表明，生态工程为改善沿海基础设施的生态性能提供了一条有效且可扩展的途径，前提是设计要符合具体环境、结构合理，并与规划和改造相结合。将生物多样性响应与基本绩效和成本信息联系起来，将有助于将这些生态成功转化为广泛采用的、对自然有利的沿海发展。

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引用次数: 0