Ecological Engineering最新文献

{"title":"How does land use transfer affect ecosystem services in Northwest China?","authors":"Pingping Zhou ,&nbsp;Yuansheng Tian ,&nbsp;Jun Zhai ,&nbsp;Xiaoyan Song ,&nbsp;Yi Li ,&nbsp;Wenyi Sun","doi":"10.1016/j.ecoleng.2025.107712","DOIUrl":"10.1016/j.ecoleng.2025.107712","url":null,"abstract":"<div><div>The land use in Northwest China (NW) has changed significantly due to the fast pace of urbanization, which has a significant effect on the ecosystem service functions (ES). Therefore, quantifying the impact of land use transfer on ecosystem service functions is of great significance for the improvement and restoration of ecological environment in NW. In this paper, we analyzed four ecosystem service functions to reveal the effects of land use change on ES in NW during 2001–2020, including water yield (WY), carbon storage (CS), soil conservation (SC) and habitat quality (HQ). The results of the established InVEST model indicate that WY, CS, SC and HQ showed an upward trend, with growth rates of 1.94 × 10⁶ m³/a, 8 × 10⁶ t/a, 1.48 × 10⁸ t/a and 0.00004 respectively, and the spatial distribution pattern of these ecosystem service functions in NW is similar, showing the characteristics of high in the southeast, followed by the northwest, and the lowest in the middle. Furthermore, the impact of land use transfer on ES were analyzed based on the land use extreme scenarios. The conversion of grassland to barren (G2B) will reduce CS, SC, and HQ, and greatly increase WY. In NW, the transition from cropland to grassland (C2G) and from grassland to cropland (G2C) has little impact on the ES. The method of rapid estimation of CS and HQ based on unit land use transfer area and ES change can provide theoretical scientific basis for future ecological environment restoration and management in NW.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"219 ","pages":"Article 107712"},"PeriodicalIF":3.9,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Assessment of biodiversity and landscape changes during the Pinglu Canal construction and the benefits of ecological restoration based on Rao's Q index","authors":"Songwen Deng ,&nbsp;Mengyuan Luo ,&nbsp;Wenhuan Wang ,&nbsp;Sixiang Lan ,&nbsp;Weifeng Xu ,&nbsp;Xuzhi Mai ,&nbsp;Wei Zhang","doi":"10.1016/j.ecoleng.2025.107709","DOIUrl":"10.1016/j.ecoleng.2025.107709","url":null,"abstract":"<div><div>Assessing biodiversity change is crucial for evaluating the ecological impacts of infrastructure development. Taking the Pinglu Canal as an example, this study integrates Rao's Q index, remote sensing data, and landscape metrics to analyze the ecological pattern changes and restoration benefits before and after canal construction from 2015 to 2024. Results indicated that canal construction significantly intensified fragmentation of forests, wetlands, and farmlands, resulting in about a 25 % decrease in Rao's Q index during the initial construction phase (2022), reflecting notable biodiversity loss. Following ecological restoration measures (such as afforestation compensation and wetland restoration) implemented in 2023–2024, Rao's Q showed differentiated recoveries across ecosystems, with forest ecosystems recovering by approximately 20 %, respectively. This research confirms that the Rao's Q index is suitable for evaluating biodiversity changes in heterogeneous landscapes but may overestimate biodiversity in homogeneous ecosystems like mangroves, thus necessitating correction through complementary metrics. The findings provide important theoretical support and practical references for ecological restoration planning in infrastructure projects.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"219 ","pages":"Article 107709"},"PeriodicalIF":3.9,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144312901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Passage performance of three small-sized fish species in a Vertical Slot Fishway with and without overhead cover","authors":"Fabio Tarena ,&nbsp;Claudio Comoglio ,&nbsp;Michele Spairani ,&nbsp;Alessandro Candiotto ,&nbsp;Muhammad Usama Ashraf ,&nbsp;Margherita Abbà ,&nbsp;Carlo Ruffino ,&nbsp;Daniel Nyqvist","doi":"10.1016/j.ecoleng.2025.107713","DOIUrl":"10.1016/j.ecoleng.2025.107713","url":null,"abstract":"<div><div>Hydropower dams block fish movement, cause river fragmentation, and constitute a threat to biodiversity worldwide. Vertical Slot Fishways (VSF) are a widespread solution to mitigate these effects by enabling fish passage at obstacles. In the past, fish passage research has focused mainly on strong swimming salmonids, often resulting in knowledge gaps and low passage success for other fish species, especially small-sized ones. In addition, although hydrodynamics is fundamental to assess the functionality of a fishway, other environmental factors can impact passage success. Light can affect several behaviors in fish and often plays a role in fish migration and movement. At fishways, light can both promote and hinder passage, with highly species-specific effects remaining underexplored for many species. Here we study the passage performance in an alternatingly open and covered VSF of three small-sized fish species: brook barbel (<em>Barbus caninus</em>), European bullhead (<em>Cottus gobio</em>), and Italian riffle dace (<em>Telestes muticellus</em>). Passage success was very high for brook barbel (100 %) and Italian riffle dace (95.2 %) while fewer European bullhead (46.4 %) successfully passed the fishway. Fish showed a preference for passage without overhead cover: both brook barbel and Italian riffle dace displayed lower overall passage rates under covered compared to open conditions, and entry rates were lower with cover for all three species.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"219 ","pages":"Article 107713"},"PeriodicalIF":3.9,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Environmental and biogeochemical drivers of CH4 and N2O flux variability in treatment wetlands","authors":"Isaac Okiti ,&nbsp;Gideon Efakwu ,&nbsp;Mihkel Pindus ,&nbsp;Kuno Kasak","doi":"10.1016/j.ecoleng.2025.107705","DOIUrl":"10.1016/j.ecoleng.2025.107705","url":null,"abstract":"<div><div>Methane (CH₄) and nitrous oxide (N₂O) emissions from wetlands vary spatially, influencing total greenhouse gas (GHG) fluxes. Accurately quantifying these variations is essential for refining CH₄ and N₂O budgets and developing effective mitigation strategies. This study applies the closed chamber method to assess CH₄ and N₂O flux variability over five years in treatment wetlands designed to reduce agricultural diffuse pollution, focusing on key environmental and biogeochemical drivers at 12 sampling points. Hotspots, identified as sampling points where high-emission events (hot moments) contributed disproportionately, exceeding 8.33 % of total emissions, were determined from the mean plus two-standard-deviation threshold. Median (interquartile range) CH₄ emissions were 115.86 (16.1–1191.31) μg CH₄-C m⁻² h⁻¹ in hotspots and 109.15 (27.49–722.62) μg CH₄-C m⁻² h⁻¹ in non-hotspots. Similarly, median N₂O emissions were 75.33 (29.71–187.85) μg N₂O-N m⁻² h⁻¹ in hotspots, compared to 15.41 (5.87–38.01) μg N₂O-N m⁻² h⁻¹ in non-hotspots. Statistical analysis identified water level as the key predictor of N₂O flux differences, with lower water levels driving higher emissions. CH₄ fluxes were influenced by multiple interacting factors, including dissolved oxygen, oxidation-reduction potential, conductivity, and water level, with the highest emissions under more reducing conditions. Seasonal trends revealed higher CH₄ and N₂O fluxes during the growing season, coinciding with higher temperatures and reduced flow rates. Our findings highlight the critical role of water level regulation, flow rate control, and oxygenation strategies in reducing CH₄ and N₂O emissions. These insights contribute to optimizing wetland design and management for water treatment efficiency and climate mitigation.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"219 ","pages":"Article 107705"},"PeriodicalIF":3.9,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Effect of temperature and mixture composition on arsenic removal from neutral mine drainage in passive biofilters using iron-rich sludge and peat","authors":"Xavier Marc Thevenot ,&nbsp;Tomy Roy ,&nbsp;Eva Pakostova ,&nbsp;Eric Rosa ,&nbsp;Lucie Coudert ,&nbsp;Carmen Mihaela Neculita","doi":"10.1016/j.ecoleng.2025.107697","DOIUrl":"10.1016/j.ecoleng.2025.107697","url":null,"abstract":"<div><div>In passive biofilters, sorption is the main mechanism of As removal from As-rich neutral mine drainage (As-NMD), but biochemical processes contributing to their performance needs to be better documented. This study aims to evaluate the suitability of two locally available materials (peat and Fe-rich acid mine drainage treatment sludge (AMD-S)) for As-NMD treatment at an operating gold mine located in northern Québec, Canada. First, the efficiency of different mixtures of peat and AMD-S was evaluated. Batch tests were conducted at 22 and 5 °C using synthetic (pH 7.16; 2.0 mg/L As) and real (pH 7.63; 0.91 mg/L As) As-NMD. Results revealed that the P50/AMD-S50 mixture (50 wt% peat +50 wt% AMD<img>S) was the most efficient for As immobilization. Further tests with P50/AMD-S50 showed that As removal was higher for synthetic As-NMD (88 % at 22 °C, 82 % at 5 °C) than for real As-NMD (77 % at 22 °C, 48 % at 5 °C), which was ascribed to residual salinity. P50/AMD-S50 was then used in a lab-scale biofilter system operated in a continuous mode for 3 months (22 °C; hydraulic retention time 1 day). A maximum of As removal efficiency of 98 % was obtained within the first week while As leaching occurred after 27 days. A mixture of aerobic and anaerobic bacteria was observed in the biofilter samples, including Fe-reducers (11 % of total reads), S-oxidizers (6.1 %), SO₄^2--reducers (6.0 %), and As-metabolizing prokaryotes (3.5 %). The remobilization of As from the sorbent remains to be addressed to ensure long-term stability of contaminant treatment systems under real mine site conditions.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"219 ","pages":"Article 107697"},"PeriodicalIF":3.9,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Closing the loop on passive treatment of mining-influenced waters: Reuse of Ferruginous Mine drainage residuals as phosphate sorbents","authors":"Dayton M. Dorman,&nbsp;Robert W. Nairn","doi":"10.1016/j.ecoleng.2025.107700","DOIUrl":"10.1016/j.ecoleng.2025.107700","url":null,"abstract":"<div><div>Mine drainage (MD) passive treatment systems (PTS) have been demonstrated to be effective applications of ecological engineering that improve water quality. Recently, there has been a global push for the sustainable management of accumulated treatment residuals known as mine drainage residuals (MDRs). One proposed management strategy is the reuse of MDRs as phosphorus (P) sorbents to address eutrophication due to elevated anthropogenic P. This study evaluated the reuse of three MDRs from an untreated net-acidic coal MD discharge (Gowen), a net-alkaline coal MD PTS (Rock Island #7 Passive Treatment System, RI7PTS), and a net-alkaline hard-rock MD PTS (Mayer Ranch Passive Treatment System, MRPTS) in Oklahoma, USA as P sorbents. Sorption experiments found that the MRPTS MDRs sorbed 244 ± 86 mg g⁻¹ P while the MDRs from Gowen and RI7PTS sorbed 61 ± 48 and 88 ± 45 mg g⁻¹ P, respectively, at an initial concentration of 4000 mg L⁻¹ P. Similarly, sorption studies found that all MDRs removed over 88 % of P (4.41–4.95 g⁻¹ P) within 24 h, with an initial concentration of 50 mg L⁻¹ P and a dose of 10 g MDR L⁻¹. A limiting factor with reusing MDRs is the potential release of metals. In these experiments, the release of metals at ecotoxic concentrations typically occurred at unnatural concentrations of P (&gt;1000 mg L⁻¹ P) due to the increased acidity of the solutions, overestimating the metal leachability of the MDRs. These results indicate that MDRs from these different MD chemistries can be sustainably reused as P sorbents, closing the resource recovery loop of PTS.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"219 ","pages":"Article 107700"},"PeriodicalIF":3.9,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144254961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"GREENHOUSE gas emissions in coffee plantations on a bauxite-mined soil undergoing reclamation: Management fertilizer and cover crop","authors":"Josias do Amaral Filho,&nbsp;Valéria Santos Cavalcante,&nbsp;Bernardo Amorim da Silva,&nbsp;Rafael da Silva Teixeira,&nbsp;Ivo Ribeiro da Silva,&nbsp;Emanuelle Mercês Barros Soares","doi":"10.1016/j.ecoleng.2025.107704","DOIUrl":"10.1016/j.ecoleng.2025.107704","url":null,"abstract":"<div><div>Alternatives that control the impacts on the soil and the environment are important for reusing agricultural lands after bauxite mining. In this study, we evaluated the effects of organic and mineral fertilization with or without cover crops on soil organic carbon (SOC) pools, coffee (<em>Coffea arabica</em>) bean yield, and soil greenhouse gas (GHG) emissions in the reestablishment of coffee plantations on a bauxite-mined soil undergoing reclamation. The experiment consisted of a split-plot design with four replicates. The main plot received three types of fertilization: nonfertilization (NF), mineral fertilization (MF), and poultry litter (PL). In subplots, an area without cover crops (-CC) and another with <em>Urochloa ruziziensis</em> (+CC) were considered. GHG fluxes (CO₂, CH₄ and N₂O) were measured over eight months, and the accumulated fluxes for each GHG, global warming potential, carbon management index, and soil C-CO₂ relative emissions were calculated at the end of the measurements. The soil organic carbon (SOC), easily oxidable carbon (KMnO₄-C) contents and coffee bean yield were also measured in two seasons. We found that <em>Urochloa ruziziensis</em> between the coffee plantations provided lower relative CO₂ emissions. CO₂ and N₂O emissions were higher in soils with coffee plantations fertilized with PL. The CH₄ efflux behavior between the treatments was similar. The accumulated soil N₂O flux, with the poultry litter increases by approximately 87 % and 98 % in relation to MF and NF treatments, respectively. The accumulated efflux of CH₄ in the soil of coffee trees planted -CC and MF treatments was 75.8 % higher than that +CC and MF treatments. The -CC and MF treatments contributed 31 % more to the relative CO₂ emissions. On the other hand, the combination of <em>U. ruziziensis</em> and PL application provided a total SOC 23.80 % higher than that in the -CC areas. The KMnO₄-C content and carbon management index were also higher in treatments with +CC between the coffee plantations. However, the highest production of coffee beans was with PL application (46 sc ha⁻¹) followed by MF (25 sc ha⁻¹) in the -CC. Our study presents evidence that the combined use of poultry litter and <em>U. ruziziensis</em> allows the recovery of SOC following bauxite mining. Poultry litter without vegetation cover contributes to higher production; however, it provides greater accumulated efflux and GHG emissions. Our findings highlight the importance of adequate soil management in coffee plantations on a bauxite-mined soil undergoing reclamation.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"219 ","pages":"Article 107704"},"PeriodicalIF":3.9,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144254087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Quantifying the independent contributions of ecological restoration projects: An efficacy evaluation study of Yimeng Mountain","authors":"Ding Honghao ,&nbsp;Sun Ranhao ,&nbsp;Pang Xixiang ,&nbsp;Ding Xiaodong ,&nbsp;Jiang Wenpeng","doi":"10.1016/j.ecoleng.2025.107699","DOIUrl":"10.1016/j.ecoleng.2025.107699","url":null,"abstract":"<div><div>Ecological restoration projects (ERPs) are essential for promoting regional sustainability and enhancing societal well-being. However, their independent contributions to regional ecological efficacy improvement remain difficult to quantify due to confounding factors. To address this limitation, we present the Yimeng Mountain ERP as a case study and develop a “pattern-service” hierarchical evaluation framework, introducing an innovative method, spatial difference in temporal difference method (STDM) inserting twice spatial differences before and after the ERP assessment, to isolate independent contribution of ERPs. Key findings reveal that: 1) From 2020 to 2023, the Yimeng region experienced a 6 % growth in natural ecosystem coverage, a 20 % increase in fractional vegetation cover (FVC), and an 8 % reduction in landscape fragmentation. 2) Major ecosystem services (ESs) showed remarkable improvements, with the total amount of wind erosion prevention increasing by 211 %, water conservation by 81 %, flood water storage by 52 %, and soil conservation by 47 %. 3) The initial effect of ERP contributed 72 % of the FVC increase and 75 % of the soil conservation improvement within the project implementation scope, contributing to water conservation (28 %), wind erosion prevention (2.35 %), and flood water storage (0.35 %) were limited. This study offers valuable methodological insight for evaluating the ecological effectiveness of ERPs, providing direct implications for optimizing regional ERP implementation.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"219 ","pages":"Article 107699"},"PeriodicalIF":3.9,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144240450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Highly efficient co-removal of zinc and manganese during passive treatment of mine drainage: Mechanisms, microbiology and application","authors":"Ilemona Cornelius Okeme ,&nbsp;Pallavee Srivastava,&nbsp;Devin J. Sapsford","doi":"10.1016/j.ecoleng.2025.107681","DOIUrl":"10.1016/j.ecoleng.2025.107681","url":null,"abstract":"<div><div>Previous investigations have reported the coeval removal of zinc (Zn) and manganese (Mn) under aerobic circumneutral pH conditions during the passive treatment of mine waters, but the removal mechanisms are less well established. Here 7 months of data are presented on Mn and Zn removal from a field based passive mine water treatment trial on mine water of pH 5.42, containing Mn 1.5 mg/l, and Zn 0.8 mg/l. The final treatment train comprised two aerobic vertical flow reactors (VFRs) operated in series, the first with granite/pyrolusite media and the second with limestone media (retention times ∼19 h and ∼ 3 h respectively). Only limited Mn and Zn removal was observed in the granite/pyrolusite VFR reactor. When limestone vertical flow reactors were added to the treatment train after month 4, Mn removal was quickly established with coeval removal of Zn. The Mn concentrations decreased from a mean of 1169 μg/l and 1154 μg/l in the influents to the two limestone reactors, to 245 μg/l and 234 μg/l in the effluents, respectively. Zn concentrations decreased from a mean of 791 μg/l and 935 μg/l (influent) to 228 μg/l and 236 μg/l in the effluents, respectively, with effluent concentrations on occasion reaching as low as 15 μg/l. Detailed analyses of the precipitates bulk and surficial chemistry indicate Zn removal in association with manganese oxides (MnOx) accreted on the surface of limestone as the predominant removal mechanism. Sequential extraction data indicates a significant proportion of Zn also being associated in the “adsorbed/carbonate-associated” phase. Interestingly, based on the difference in influent and effluent concentrations, the overall ratio of Mn:Zn removal was close to 2:1 suggestive of the precipitation of a Mn<img>Zn oxide mineral directly from the mine water. Microbial community analyses reveal distinct structure in the accumulated ochreous sludge in the granite/pyrolusite and on the grains of limestone in the limestone reactors. The granite/pyrolusite VFR sludge was populated with iron oxidising microbes including <em>Gallionella</em> and <em>Pseudomonas</em>, of which <em>Pseudomonas</em> can also oxidize Mn. The limestone reactors were populated with several genera of Mn oxidising bacteria including <em>Pseudomonas</em> and <em>Leptothrix</em>, suggesting biotic mechanisms are important. These data reveal that Zn may be removed to concentrations was low as 15 μg/l when the Zn is co-removed with Mn within limestone reactors. This opens opportunities for this mechanism to be exploited within nature-based passive treatment systems for removal of Zn.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"219 ","pages":"Article 107681"},"PeriodicalIF":3.9,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144240397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Integrating BiLSTM-multi-head attention model for eco-compensation allocation and prediction in transboundary watersheds","authors":"Fengqi Guo ,&nbsp;Linru Hao ,&nbsp;Chunhua Xin","doi":"10.1016/j.ecoleng.2025.107701","DOIUrl":"10.1016/j.ecoleng.2025.107701","url":null,"abstract":"<div><div>The successful implementation of ecological compensation hinges on the establishment of reasonable compensation standards. This study develops a two-stage compensation standard allocation model and an ecosystem service value prediction model using an optimized BiLSTM-Multi-head Attention method. Based on the total cost, the standards are allocated across districts within the Yongding River Basin according to the revised ecosystem service values (ESV) from 2009 to 2020, with a prediction for 2021. The results show that the direct costs of comprehensive management in the Yongding River Basin amount to 362.21 million yuan, while the indirect costs reach 1725.52 million yuan, resulting in a total cost of 2087.73 million yuan. Upon allocation based on the revised ESV, the upstream areas primarily receive compensation, while downstream areas are the main payers. This trend has become increasingly pronounced since the initiation of collaborative management in 2016, with downstream areas facing increasing compensation burdens. Specifically, the average annual compensation burden of Tianjin's districts has risen from 6.39 million yuan in 2016 to 8.99 million yuan in 2020, and is predicted to be 9.05 million yuan in 2021. This trend is associated with the further development of Tianjin's economic functions and indicates intensified local ecological pressures. Coupled with the decline of ESV in downstream, it underscores the necessity to prioritize the preservation of ecological conservation areas. A market-oriented mechanism to realize the value of ecological products within the basin is also suggested to enhance the ecological benefits for ecosystem service providers and alleviate the burden on compensators. Moreover, the constructed systematic approach balances fairness and efficiency, leveraging collaborative management and enhancing overall sustainability.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"219 ","pages":"Article 107701"},"PeriodicalIF":3.9,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144240447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}