Environmental Management最新文献

{"title":"Modeling Sediment Transport Potential and Connectivity to Support Sustainable Hydropower Development in Central Asia","authors":"Hannah Schwedhelm,&nbsp;Jan De Keyser,&nbsp;Tobias Siegfried,&nbsp;Sandra Krone,&nbsp;Antonia Dallmeier,&nbsp;Roser Casas-Mulet,&nbsp;Nils Rüther","doi":"10.1007/s00267-026-02598-8","DOIUrl":"10.1007/s00267-026-02598-8","url":null,"abstract":"<div><p>Hydropower development exerts strong pressure on river systems by fragmenting river basins, trapping sediments and creating downstream sediment starvation. These alterations severely degrade river ecosystems through losses in habitat abundance and deterioration of substrate composition. As hydropower continues to expand, there is an urgent need for informed sediment management to be included in hydropower planning. In Central Asia, where a high potential for hydropower development remains, hydromorphological data are limited, constraining the assessment of morphological processes. To address this data scarcity, this study creates for the first time a high-resolution dataset containing qualitative information on sediment transport and sediment connectivity in Central Asia. We modified a sediment connectivity model to work with openly available geospatial datasets and statistically variable input data. The simulation outputs were aggregated into spatially explicit probabilities of sediment transport, entrainment and deposition for five grain-size classes, along with connectivity indices. Comparisons with results from 2D numerical hydraulic modeling at four sites indicated an overall good agreement, although a consistent tendency toward overestimation. The resulting dataset facilitates the decision-making process in hydropower planning by informing three application domains: comparing hydropower sites, deciding on design and operational strategies, and evaluating ecological and morphological impacts. Although site-specific assessments and field data are crucial for individual hydropower projects, our dataset provides essential decision support for basin-wide hydropower development in Central Asia.</p></div>","PeriodicalId":543,"journal":{"name":"Environmental Management","volume":"76 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00267-026-02598-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148975240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Spatial-segmented Modelling of Eutrophication in Hypereutrophic Urban Lakes for Guiding Restoration With Scarce Data","authors":"Minakshi Mishra,&nbsp;Rishikesh Sharma,&nbsp;Anupam Singhal,&nbsp;Srinivas Rallapalli","doi":"10.1007/s00267-026-02624-9","DOIUrl":"10.1007/s00267-026-02624-9","url":null,"abstract":"<div><p>Urban tropical lakes are experiencing eutrophication on an extreme scale, yet assessment and modeling approaches have been developed primarily for moderately enriched temperate lakes. This study tackles two knowledge gaps related to empirical models in tropical lakes: (i) how well they perform under extreme nutrient concentrations and (ii) the relative importance of external and internal loading under rapid flushing conditions. Monthly monitoring data across eight years (2016–2024) were used to implement a spatially-explicit three-segment BATHTUB (Bath-Tub nutrient-balance model; Walker, 1996) eutrophication model to estimate nutrient dynamics of Bellandur Lake, Bengaluru (India), under extreme hypereutrophic conditions (TP &gt; 6000 mg m^-³). Segmentation reflects a spatial gradient from inlet to outlet segments and allows model transferability for data-limited contexts. Mass balances were used to evaluate external/internal loading. Model calibration showed good agreement (R² = 0.68–0.82), and simulated TP (4.84 mg L^-¹) and TN (39.1 mg L^-¹) concentrations were close to observed concentrations. The calibrated model showed mass exports dominated (&gt;99%) over internal sediment release (&lt;1%). Short hydraulic residence time (HRT ≈ 4.7 days) verified a rapidly flushed inflow-dominated system. Calculated TSI(TP) values indicate Bellandur Lake is among the top globally ranked most nutrient- enriched urban lakes. Model evaluation shows steady-state empirical models can simulate extreme hypereutrophic lakes when spatially segmented and recalibrated with local data, allowing for evidence-based phased restoration approaches in data-limited tropical contexts.</p></div>","PeriodicalId":543,"journal":{"name":"Environmental Management","volume":"76 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Global Patterns of Net Ecosystem Exchange in peatlands: A Systematic Review and Meta-analysis of Drivers Across Land Use and Environmental Gradients","authors":"Charuni Jayasekara,&nbsp;Catherine Leigh,&nbsp;Jeff Shimeta,&nbsp;Ewen Silvester,&nbsp;Samantha Grover","doi":"10.1007/s00267-026-02621-y","DOIUrl":"10.1007/s00267-026-02621-y","url":null,"abstract":"<div><p>Peatlands play an essential role in the global carbon cycle, storing approximately one-third of the world’s soil carbon despite covering less than 3% of the land surface. Peatland degradation from anthropogenic activities and climate change can convert peatlands from net carbon sinks to sources by altering carbon cycling. Net Ecosystem Exchange (NEE), the balance between CO₂ uptake and emission, is a critical indicator for assessing peatland condition and restoration efforts. We conducted a systematic quantitative literature review to investigate global patterns of NEE in peatlands and identify key environmental and anthropogenic drivers of CO₂ flux variability. Annual NEE values from 120 globally distributed sites reported in peer-reviewed literature were analyzed in relation to climatic zone, land use, vegetation type, peatland condition, and water table depth. Our synthesis revealed significant geographic gaps, with peatland NEE studies substantially underrepresented in the Tropics, Africa, and Oceania. Agricultural peatlands emitted significantly more CO₂ than sites under natural land uses or peat extraction, while degraded peatlands were significantly greater net CO₂ sources than intact and restored systems. Restored peatlands remained net CO₂ sources on average, emphasizing the importance of long-term monitoring and adaptive management following restoration interventions. Water table depth significantly affected NEE variability, with CO₂ emissions increasing approximately 7.2 gCO₂-C m⁻²yr⁻¹ for every centimeter of water table drawdown. A substantial variability in measurement methods, data processing software, and protocols highlighted the critical need for methodological standardization. Our findings provide evidence-based targets for peatland conservation and restoration monitoring as nature-based climate solutions.</p></div>","PeriodicalId":543,"journal":{"name":"Environmental Management","volume":"76 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13570830/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148954736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Negotiating Wetlands: Convivial Conservation and Collective Wetland Management in Ada, Ghana","authors":"Louis Kusi Frimpong,&nbsp;Stephen Leonard Mensah,&nbsp;Seth Asare Okyere,&nbsp;Shine Francis Gbedemah,&nbsp;Martin Oteng-Ababio","doi":"10.1007/s00267-026-02613-y","DOIUrl":"10.1007/s00267-026-02613-y","url":null,"abstract":"<div><p>Across the rapidly urbanizing Global South, wetlands continue to experience intense socio-ecological pressures despite their numerous benefits to humans and wildlife. Protecting wetlands and other ecological resources requires a renewed sense of ecological stewardship, especially in endangered regions. This study contributes to this call by (1) analyzing land cover changes and their associated drivers in the Ada-Songhor wetland area, (2) exploring the various conservation practices deployed and how they impact livelihoods and wetland protection, and (3) examining the role of commons-based approaches such as trust, participation, and institutional coordination in enhancing positive wetland governance outcomes. Using a case study research design that combines satellite imagery analysis with stakeholder interviews, the study finds significant spatial transformations over the past three decades, including a 47% loss of vegetation cover and a 303% increase in bare land, largely due to anthropogenic activities. The findings further show that state-community collaborations have been useful in co-producing convivial conservation practices and community-based approaches to safeguard the wetlands. Overall, the study’s findings highlight the socio-ecological and governance complexities of wetlands management and underscore the benefits of collaborative, well-coordinated, and socially attuned management practices for protecting ecologically sensitive areas.</p></div>","PeriodicalId":543,"journal":{"name":"Environmental Management","volume":"76 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Quantitative Approach to Biodiversity Offset Multipliers: Managing Uncertainty in Complex Projects","authors":"Adam S. van der Lee,&nbsp;Madison E. Brook,&nbsp;Marten A. Koops","doi":"10.1007/s00267-026-02623-w","DOIUrl":"10.1007/s00267-026-02623-w","url":null,"abstract":"<div><p>Biodiversity offsetting is a widely used strategy to mitigate residual environmental impacts from development projects, with the objective of achieving No Net Loss (NNL). However, offsetting efforts are often undermined by uncertainty in outcomes, time delays in implementation, and inconsistent valuation methods. We present a robust, quantitative framework for calculating biodiversity offset multipliers that explicitly incorporate uncertainty across multiple offsets within a project. Building on previous work, we model offsets and impacts as stochastic values and apply Monte Carlo simulations to estimate risk-based multipliers. This framework allows for strategic allocation of compensation using a weighting parameter, enabling proponents to optimize offset investments based on the costs and reliability of offsets. Simulation results demonstrate that the proposed method consistently meets defined risk tolerance thresholds across a range of ecological scenarios. By providing a transparent and adaptable tool, this approach can enhance regulatory defensibility, support timely and credible offset approvals, and strengthen the ecological integrity of NNL outcomes.</p></div>","PeriodicalId":543,"journal":{"name":"Environmental Management","volume":"76 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13570922/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148954747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Diagnosing Barriers to California Bay-Delta Wetland Restoration Implementation: Extending the Adaptation Perspective","authors":"Kyra Gmoser-Daskalakis,&nbsp;Mark Lubell,&nbsp;Gwen Arnold","doi":"10.1007/s00267-026-02618-7","DOIUrl":"10.1007/s00267-026-02618-7","url":null,"abstract":"<div><p>Climate adaptation increasingly considers wetland restoration as a nature-based solution to reduce flood risk and provide co-benefits such as species protection, water resource management, and public recreation access. However, barriers must be identified and overcome to increase the pace and scale of wetland restoration for adaptive benefits. We argue existing climate adaptation barriers frameworks insufficiently address physical and ecological barriers that become apparent during on-the-ground implementation of wetland restoration projects. This paper diagnoses barriers to wetland restoration projects in the California Bay-Delta Estuary via semi-structured interviews with 59 project developers and regional restoration policymakers, funders, and managers across nine case study projects. Findings suggest common challenges emerge around conflicts among regulatory authorities and insufficient funding for post-project stewardship. We recommend potential solutions to address key barriers and increase the pace of wetland restoration. Adaptation in developed coastal estuaries worldwide increasingly requires nature-based solutions like wetland restoration; such a framework is imperative to diagnose barriers and identify interventions that can increase investment in these complex social-ecological systems.</p></div>","PeriodicalId":543,"journal":{"name":"Environmental Management","volume":"76 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00267-026-02618-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Cascading Socio-environmental Risks In Northern Patagonia: A Locally Anchored Assessment From Family Farming Systems","authors":"Catalina Rico Lenta,&nbsp;Ana Ladio","doi":"10.1007/s00267-026-02619-6","DOIUrl":"10.1007/s00267-026-02619-6","url":null,"abstract":"<div><p>Global socio-environmental change poses growing challenges for family farming in Patagonia, requiring approaches that integrate Local Ecological Knowledge (LEK) into adaptation research. This study examines how family farmers participating in the Nahuel Huapi Family Farmers’ Market (Northern Patagonia, Argentina) understand and respond to change. Building on extensive ethnobiological fieldwork, a participatory workshop was conducted to assess locally perceived Components of Change (CoC), their impacts on productive systems, adaptive practices, and associated knowledge transmission pathways. We also developed a Locally-Anchored Impact Index (LAII), which integrates the perceived severity of each CoC with its degree of interconnectivity within the socioecological system. Results show that farmers interpret socio-environmental change through a systemic perspective, identifying water scarcity as the central organizing concern, with surface and groundwater flow and drought emerging as the most influential CoC. The LAII revealed a greater overall impact of climatic and ecological factors than socio-economic ones, and higher index values were associated with a broader diversity of adaptive practices. Climatic CoC mobilized the widest repertoire of responses, whereas ecological and socio-economic CoC elicited distinct adaptive strategies and knowledge transmission pathways. These findings highlight family farmers as active agents whose responses are grounded in local learning, experimentation, and knowledge exchange. The LAII provides a context-sensitive framework for identifying locally relevant adaptation priorities and a transferable methodological approach for participatory assessment of socio-environmental change.</p></div>","PeriodicalId":543,"journal":{"name":"Environmental Management","volume":"76 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148917789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Building Techno-Scientific Trust in Adaptation to Sea-Level Rise in the Dutch Online Media","authors":"Ilona Bontenbal,&nbsp;Hanna-Mari Husu","doi":"10.1007/s00267-026-02620-z","DOIUrl":"10.1007/s00267-026-02620-z","url":null,"abstract":"<div><p>In this article, we analyse how different adaptation strategies to sea-level rise (protection, accommodation and retreat) are presented and legitimised as approaches to climate-change resilience in the Dutch media. To examine how these strategies are positioned within media narratives, we draw on conceptualisations of trust, which help clarify why certain options gain greater legitimacy or credibility in public discourse. The analysis builds on three forms of trust: generalised trust, system trust and process-based trust. We find that Dutch media representations strongly legitimise technical and engineering-based protection measures, often at the expense of accommodation or retreat. Media narratives construct a clear hierarchy in which protection is most preferred and trusted, accommodation occupies a secondary position, and retreat is framed as least credible or desirable. This hierarchy is reinforced by depictions of substantial financial and institutional capacity to support large-scale technical solutions. Overall, the media reproduce trust in continuity and business-as-usual thinking, presenting futures that extend established socio-technical practices rather than imagining more transformative or disruptive adaptation pathways.</p></div>","PeriodicalId":543,"journal":{"name":"Environmental Management","volume":"76 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00267-026-02620-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Introduced Fish in Mountains: State of Published Research on their Removal from Lentic Ecosystems","authors":"Dan Cogălniceanu,&nbsp;Florina Stănescu,&nbsp;Teodora L. Tănase,&nbsp;Sabina E. Vlad,&nbsp;Mark Snethlage,&nbsp;Ajay Ranipeta,&nbsp;Davnah Urbach","doi":"10.1007/s00267-026-02616-9","DOIUrl":"10.1007/s00267-026-02616-9","url":null,"abstract":"<div><p>The introduction of alien fish in freshwater ecosystems has become an increasing concern over the last decades and a considerable amount of literature exists on their ecological consequences. However, less is known about their management and eradication, particularly in mountain ecosystems, where fish introductions have been carried out over decades. Here, we systematically mapped and reviewed peer-reviewed literature on fish removal in mountain ecosystems, with a focus on standing waters. The results of our work indicate important spatial and taxonomic biases, with most published studies performed in North America and on salmonids. The removal methods were primarily physical (57%) and chemical (31%), with variable success rates depending on which approach or combination of approaches were used, the species targeted, and ecosystem characteristics. Based on the 35 publications we reviewed, there is no “silver bullet” for fish removal from mountain standing waters. Prevention, early detection, and rapid intervention remain the best approach in halting the spread of or eradicating invasive species before the establishment phase. Making use of the available data and learning from past interventions remains the most affordable approach to guide and adapt management options. To share the knowledge we collected, inform management, and raise awareness, we developed the “FishME Toolbox” as an online open access infrastructure offering tailored resources for both expert and non-expert users.</p></div>","PeriodicalId":543,"journal":{"name":"Environmental Management","volume":"76 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00267-026-02616-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148917921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Getting On the Same Page? Insights from the Public Discourse of Managed Retreat in Atlantic Canada","authors":"Robin Willcocks-Musselman,&nbsp;Kate Sherren","doi":"10.1007/s00267-026-02617-8","DOIUrl":"10.1007/s00267-026-02617-8","url":null,"abstract":"<div><p><i>Managed retreat</i> is a term used in academia and increasingly in policy for the movement of people and infrastructure away from high-risk areas and natural hazards. Climate change impacts are anticipated to increase the need for managed retreat. Multiple terms for managed retreat are often used in the literature, which creates a diffuse literature and confusion among scholars. But the real challenge comes with engaging the public, for whom the term is largely unknown, and the concept represents a threat. We conducted a longitudinal content analysis of news media to explore the public discourse around managed retreat language in Atlantic Canada from 2003–2023, a period of increasing storm activity. Using a novel search approach, we found: a wide variety of terms are being used to describe the concept, in addition to managed retreat; such language has increased over time in news media, likely linked to climate-related events; and different actor groups are using different terms. Shared vocabulary is critical for collective action, so tracking the evolving language of managed retreat as used with and by the public is important for effective design, communication, and implementation of related policy.</p></div>","PeriodicalId":543,"journal":{"name":"Environmental Management","volume":"76 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148917877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}