Ecohydrology & Hydrobiology最新文献

{"title":"Beyond water mapping: Spectral indices as cross-functional predictors of water quality in optically complex inland waters","authors":"Akira Lusia ,&nbsp;Muhammad Iqbal Habibie ,&nbsp;Iskandar Iskandar ,&nbsp;Agung Riyadi ,&nbsp;Doni Fernando ,&nbsp;Suhendar I. Sachoemar ,&nbsp;Joko Prayitno Susanto ,&nbsp;Syaefudin Syaefudin ,&nbsp;Iif Miftahul Ihsan ,&nbsp;Lestario Widodo ,&nbsp;Teguh Prayogo ,&nbsp;Riardi Pratista Dewa ,&nbsp;Rizky Pratama Adhi","doi":"10.1016/j.ecohyd.2026.100727","DOIUrl":"10.1016/j.ecohyd.2026.100727","url":null,"abstract":"<div><div>This study examines the spatiotemporal dynamics and water quality of a tropical volcanic lake from 2019 to 2024 using five multi-temporal spectral indices—NDWI, MNDWI, BGI, NDCI, and NDTI—integrated within a machine-learning framework comprising nine algorithms, including Random Forest, XGBoost, LightGBM, SVR, ANN, and an Ensemble Voting Regressor. Water-sensitive indices (NDWI, MNDWI) effectively delineated lake extent and served as strong predictors for chlorophyll (NDCI), turbidity (NDTI), and vegetation vigor (BGI), supporting an integrated systems-based monitoring approach.</div><div>Interannual analyses revealed significant hydrological, ecological, and optical variability (<em>p</em> &lt; 0.001), with spatial autocorrelation (Moran’s I, <em>p</em> = 0.001) highlighting geomorphology, hydrological circulation, and localized anthropogenic influences. Strong correlations in 2022 between NDCI and NDVI (<em>r</em> = 0.947) indicate that vegetation activity and agricultural practices drive chlorophyll dynamics, while moderate NDVI–NDTI relationships suggest sediment transport linked to land use. Precipitation contributed weakly, indicating that hydrometeorology was not the main driver of extreme water-quality events. Persistently elevated NDCI and NDTI values reflect chronic eutrophication and sedimentation.</div><div>Ensemble and tree-based models outperformed linear and distance-based approaches, capturing nonlinear interactions among spectral predictors. The Voting Regressor provided the most stable performance, including peak events such as algal blooms, and lightweight optimizations maintained high accuracy (R² = 0.78–0.97) with lower computational cost.</div><div>This study presents a robust, interpretable framework for scalable freshwater assessment, demonstrating that combining multi-spectral indices with ensemble learning can capture lake persistence, ecological stressors, and dynamic water-quality patterns, offering actionable insights for sustainable management under changing environmental and land-use conditions.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"26 1","pages":"Article 100727"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146174914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 morphology-enhanced framework for predicting sediment dynamics in vegetated flows through aquatic ecosystems","authors":"Jafar Chabokpour","doi":"10.1016/j.ecohyd.2025.100717","DOIUrl":"10.1016/j.ecohyd.2025.100717","url":null,"abstract":"<div><div>In the current study, extensive flume experiments comparing three emergent aquatic species (Phragmites australis, Acorus calamus, and Typha latifolia) with uniform cylindrical models were used to investigate the impact of plant morphology on sediment transport dynamics in aquatic environments. A plant morphological coefficient (β) was used to evaluate the vertical distribution of frontal area, and its effect on near-bed hydrodynamics and sediment transport was thoroughly examined. The results of the experiments showed that plants with higher β values (P. australis: 1.9–2.4, A. calamus: 1.5–2.1) caused much faster near-bed speeds and more turbulent kinetic energy than uniform cylindrical arrays (β = 1.0), which led to 3–8 times faster sediment transport rates at the same densities. Critical density thresholds for substantial sediment transport were determined, with P. australis achieving this threshold at significantly lower stem densities compared to cylindrical arrays. Wavelet analysis revealed that intricate plant morphologies generated larger, more enduring coherent structures that were superior in entraining and carrying silt. A morphology-enhanced prediction model was created, integrating β with an empirically derived exponent (γ = 1.42 ± 0.11), demonstrating strong concordance with experimental data (R² = 0.93) and negligible bias (-2.8 %). The sensitivity analysis showed that β was the most significant parameter in the model. These findings show that conventional models based on uniform vegetation representations significantly underestimate sediment transport in natural systems, emphasizing the critical importance of accurately characterizing vegetation morphology for reliable prediction of geomorphic evolution in vegetated aquatic environments.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"26 1","pages":"Article 100717"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146174971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Nitrogen retention dynamics in a large floodplain river: a case study on the Padma River, Bangladesh","authors":"Md Ataul Gani ,&nbsp;Gretchen M. Gettel ,&nbsp;Johannes van der Kwast ,&nbsp;Kenneth A. Irvine ,&nbsp;Michael E. McClain","doi":"10.1016/j.ecohyd.2025.100724","DOIUrl":"10.1016/j.ecohyd.2025.100724","url":null,"abstract":"<div><div>Large tropical floodplain rivers act as important pathways of nitrogen transport from land to the sea. In the present study, a mass balance approach was used to evaluate nitrogen retention over a two-year period from a 50 km reach of the Padma River in Bangladesh. The relationship between concentration and discharge was estimated from 58 nitrogen concentration and discharge measurements. Daily nitrogen flux was then calculated from the hydrological inflow and outflows of the reach, and total nitrogen (TN) retention was estimated based on the flux difference of TN inflow and outflows. To validate mass-balance measurements, retention processes of nitrogen loss due to water retention (NLWR), sedimentation, potential denitrification rate (PDR), and nitrogen fixation rate (NFR) were estimated from the water column of the river. Monthly mass-balance measurements revealed substantial seasonal variation in nitrogen retention, indicating river discharge as the main controlling factor. Estimated maximum retention values (tonnes per month) of NLWR, sedimentation, PDR, and NFR were all associated with the monsoons, with 86 % occurring during that period. However, the percentage of PDR and NFR to TN retention was higher in non-monsoon months (post-monsoon, dry/winter and pre-monsoon), suggesting retention mechanisms varied seasonally. TN retention via NLWR accounted for the largest portion of total TN retention, that consistently exceeded 50 %, followed by sedimentation. PDR in submerged geomorphic units was the second-most important retention mechanism in the dry/winter and pre-monsoon seasons. The present research provides a benchmark for nitrogen-budget modelling in tropical rivers, supporting planning for sustainable river management.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"26 1","pages":"Article 100724"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146174980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Drought-Tolerant selection model to identify prospective maize genotypes and support sustainable agroecological practices in the semiarid regions of East Nusa Tenggara, Indonesia","authors":"Maria Yustiningsih ,&nbsp;Diny Dinarti ,&nbsp;Bambang S. Purwoko ,&nbsp;Wily B. Suwarno ,&nbsp;Darius Dare ,&nbsp;Ignasius D.A. Sutapa","doi":"10.1016/j.ecohyd.2026.100730","DOIUrl":"10.1016/j.ecohyd.2026.100730","url":null,"abstract":"<div><div>Responding to the need for drought-tolerant crops in semiarid regions, this study evaluated 17 local and three improved white maize varieties from East Nusa Tenggara, Indonesia, across optimal (E1), normal (E2), and drought-stressed (E3) environments. A robust selection model incorporating five analytical frameworks, stability analysis, Additive Main Effects and Multiplicative Interaction (AMMI) modelling, tolerance indices, Multi-Trait Genotype-Ideotype Distance Index (MGIDI), and Multi-Trait Stability Index (MTSI), was used to assess yield performance. Results identified five superior genotypes (local: A7, A11, A12; improved: A18, A19) exhibiting significant stability and adaptability. These genotypes consistently yielded above the overall average of 2.57 tons: A7 yielded 2.99 tons, A11 yielded 3.07 tons, A12 yielded 2.86 tons, A18 yielded 3.55 tons, and A19 yielded 2.57 tons. The selected genotypes showed high stability, evidenced by regression coefficients (bi) approximately equal to 1 (≈1) with non-significant deviation, and superior yields (Yi) above the 2.57 tons average. Variability was low, with the Coefficient of Variation (CVi) less than the average of 80.22, and stability index values (YSi) exceeded the 8.3 average, indicating minimal Genotype-Environment interaction. Multiplicative Interaction (AMMI) and Genetics-Genetics Environment (GGE) analyses confirmed low environmental influence on genotypic expression, explaining 84.97% and 91.2% of the total variation, respectively. Based on eleven tolerance indices, five genotypes were classified as drought-tolerant. This research provides a comprehensive framework for identifying promising genotypes for plant breeding and emphasizes incorporating local genetic diversity to enhance maize productivity and food security in climate-variable semiarid systems.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"26 1","pages":"Article 100730"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146174878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"The importance of ecotoxicology, bioindication, biodegradation in identifying and solving environmental problems in the era of the Anthropocene and climate change from the molecular to the landscape scale","authors":"Magdalena Urbaniak ,&nbsp;Katarzyna Piekarska ,&nbsp;Anna Gałązka ,&nbsp;Joanna Kalka ,&nbsp;Aleksander Astel","doi":"10.1016/j.ecohyd.2025.100722","DOIUrl":"10.1016/j.ecohyd.2025.100722","url":null,"abstract":"","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"26 1","pages":"Article 100722"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146174916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Effectiveness of pilot-scale multi-pond constructed wetland system (MPCWS) for tropical island domestic sewage treatment","authors":"Shin Ying Ang ,&nbsp;Hui Weng Goh ,&nbsp;Syafiq Shaharuddin ,&nbsp;Nor Ariza Azizan ,&nbsp;Mustafa Kamal Yed ,&nbsp;Nur Dianna Dinno ,&nbsp;Haji Alias Mohamed","doi":"10.1016/j.ecohyd.2025.100725","DOIUrl":"10.1016/j.ecohyd.2025.100725","url":null,"abstract":"<div><div>Domestic sewage poses significant health risks to human and ecosystem, particularly in tropical island with limited infrastructure. Constructed wetland systems (CWS), as nature-based solutions (NBS), offer cost-effective, energy-efficient, and ecologically sustainable alternatives for decentralised sewage treatment. This study evaluated a pilot-scale free water surface Multi-Pond Constructed Wetlands System (MPCWS), comprising five sequential ponds: sedimentation pond (SP), oil screening pond (OSP), nutrient removal pond (NRP), treatment pond (TrP), and open water pond (OWP). Four ponds (OSP, NRP, TrP, OWP) were planted with 21 native tropical wetland species. Treatment performance was assessed for organic load (BOD₅, COD), solids (TSS), nutrients (AN, TN, TP), oil and grease (O&amp;G), and microbial contamination (<em>Escherichia coli</em>). System performance was benchmarked against a non-vegetated control pond and individual septic tanks (ISTs) to quantify the contribution of vegetation. Results demonstrated that SP and OSP efficiently removed TSS and O&amp;G, while NRP, TrP, and OWP contributed to further reductions in BOD₅, COD, and nutrients. Quantitative comparison with the control indicated vegetation consistently improved removal efficiencies by more than 10% across all parameters, with statistically significant gains in TP, BOD₅, COD, and TSS. MPCWS achieved comparable or superior performance to ISTs, particularly in AN removal, highlighting the role of plant–microbe interactions and extended hydraulic pathways. These findings confirm that MPCWS with tropical macrophytes can serve as a viable, low-energy, and sustainable approach for decentralised sewage treatment in small communities and tourism islands. Beyond pollutant removal, the system offers additional benefits including nutrient recovery potential, ecological enhancement, and landscape integration.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"26 1","pages":"Article 100725"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146174969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Quantitative and qualitative characteristics of throughfall and stemflow in Quercus brantii and Q. libani forests of the Zagros region, Iran","authors":"Kazhal Karimi ,&nbsp;Pedram Attarod ,&nbsp;Thomas Grant Pypker ,&nbsp;Vahid Etemad ,&nbsp;Mehdi Pourhashemi","doi":"10.1016/j.ecohyd.2025.100710","DOIUrl":"10.1016/j.ecohyd.2025.100710","url":null,"abstract":"<div><div>Throughfall (TF) and stemflow (SF) are key mechanisms for the transport of water and nutrients in forest ecosystems. We compared the quantity and quality of TF and SF in adjacent natural stands of <em>Quercus brantii</em> and <em>Q. libani</em> located in the Zagros forests of western Iran. Gross rainfall (GR) was measured using nine plastic collectors, while forty TF collectors, identical to the GR collectors, were randomly placed beneath each forest stand. SF was collected from six trees per stand. We analyzed cation concentrations (Ca²⁺, Na⁺, Mg²⁺, and K⁺), pH, and electrical conductivity (EC) for TF, SF, and GR. A total of 43 rainfall events were recorded from May 2023 to June 2024, with cumulative GR equaling 542.9 mm. The average values of (IL:GR)% for the <em>Q. brantii</em> stand was 29.1 during the growing season and 14.5 during the non-growing season. For the <em>Q. libani</em> stand, the values were 36.4 and 19.1, respectively. EC values for GR (50.5 dS m^-1) were significantly lower than those for TF (164.0 dS m^-1 in the <em>Q. brantii</em> stand and 170.3 dS m^-1 for the <em>Q. libanii</em> stand) and SF (202.0 dS m^-1 in the <em>Q. brantii</em> stand and 204.3 dS m^-1 in the <em>Q. libanii</em> stand) across both stands (<em>P</em> &lt; 0.01). Similarly, the concentration of all cations in TF and SF were significantly higher than in GR. Understanding the link between hydrological processes, nutrient cycling and sustainable water management is crucial for preserving the ecological health of the Zagros forest ecosystems in western Iran.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"26 1","pages":"Article 100710"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146174970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Seasonal shifts and habitat complexity: unveiling plankton-meiofauna communities dynamics in artificial reef ecosystems of Haizhou Bay, China","authors":"Ze Zhao ,&nbsp;Jikun Lu ,&nbsp;Tianhang Jia ,&nbsp;Guanghui Fu ,&nbsp;Miaomiao Sun ,&nbsp;Shuo Zhang ,&nbsp;Shike Gao","doi":"10.1016/j.ecohyd.2025.100668","DOIUrl":"10.1016/j.ecohyd.2025.100668","url":null,"abstract":"<div><div><span><span>Artificial reefs (ARs) play a vital role in marine habitat restoration; however, their influence on </span>microbial communities<span><span> remains poorly understood. In the present study, we investigated seasonal- and habitat-driven variations in plankton and meiofauna communities (herein referred to as microbial communities) in Haizhou Bay, China, by performing 18S </span>rDNA<span> sequencing and co-occurrence network analysis. Samples were collected from AR surfaces and adjacent seawater in spring and autumn, and the environmental parameters, such as temperature, salinity, and depth, were concurrently detected. The results revealed significant α-diversity differences. Autumn bottom waters exhibited the highest richness, whereas AR surfaces exhibited decreased Shannon indices (</span></span></span><em>P</em> &lt; 0.001). β-Diversity analysis revealed distinct community structures between ARs and water columns (<em>P</em><span> &lt; 0.001), which were largely driven by seasonal shifts in temperature and salinity. Reef surfaces supported complex networks with &gt;80 % positive correlations, suggesting mutualistic interactions. Vertical stratification on ARs led to depth-dependent specialization, with increasing Annelida abundance at deeper layers in spring (</span><em>P</em><span><span><span> = 0.012). Linear discriminant analysis effect size identified habitat-specific biomarkers, such as </span>Cnidaria in autumn ARs and </span>Ciliophora<span> in spring water<span>, suggesting niche partitioning. Redundancy analysis revealed salinity and temperature as major environmental drivers. Altogether, our findings suggest that ARs enhance biodiversity and ecosystem stability through habitat heterogeneity and modular networks, buffering environmental changes. These findings offer practical insights for optimizing AR designs and formulating strategies to support sustainable sea ranching development and coastal restoration.</span></span></span></div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 4","pages":"Article 100668"},"PeriodicalIF":2.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145739014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Polystyrene microbeads in freshwater ecosystems - Ecotoxicological effects on Daphnia magna","authors":"Nina Doskocz ,&nbsp;Dominika Skwarska ,&nbsp;Katarzyna Affek ,&nbsp;Marta Kucharska ,&nbsp;Jessica Hua ,&nbsp;Monika Załęska-Radziwiłł","doi":"10.1016/j.ecohyd.2025.100647","DOIUrl":"10.1016/j.ecohyd.2025.100647","url":null,"abstract":"<div><div><span>The global surge in plastic production has led to widespread contamination of aquatic ecosystems with microplastics. Despite increasing concerns, data on their impact on </span>freshwater species are limited, which hampers comprehensive ecological risk assessments.</div><div><span><span>This study investigates the effects of polystyrene </span>microparticles<span> on the survival and physiological processes of the freshwater crustacean </span></span><span><span>Daphnia magna</span></span>. The research evaluates the direct effects of microplastics in acute and chronic exposures, correlating impacts with particle size and concentration, and identifying the locations of microplastic accumulation in the organisms.</div><div><span>Results show that polystyrene microplastics have size- and concentration-dependent negative effects on </span><em>D. magna</em><span>, causing particle accumulation in the digestive system, cellular damage, reproductive inhibition, and immobilization. The most toxic particles were 1 μm in size, while 0.5 μm and 3 μm particles exhibited lower acute toxicity<span><span>. Chronic exposure led to reduction in offspring body length across most microbead sizes. The most pronounced effects were observed for 3 µm particles in terms of the number of neonates, and for 1 µm particles in terms of body length. </span>Transmission electron microscopy<span> revealed that the smallest particles (0.5 μm and 0.75 μm) most effectively penetrated intestinal cells, causing cytoplasmic accumulation, mitochondrial damage, and cell disruption<span>. These findings contribute to improving environmental risk assessments for microplastics in freshwater ecosystems.</span></span></span></span></div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 4","pages":"Article 100647"},"PeriodicalIF":2.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145738921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Hydrodynamic modeling as a tool for analyzing the hydrological effects of river maintenance activities","authors":"Maria Grodzka-Łukaszewska ,&nbsp;Dorota Mirosław-Świątek ,&nbsp;Mateusz Grygoruk ,&nbsp;Tomasz Krepski ,&nbsp;Sylwia Szporak-Wasilewska ,&nbsp;Grzegorz Sinicyn ,&nbsp;Tomasz Okruszko","doi":"10.1016/j.ecohyd.2025.100677","DOIUrl":"10.1016/j.ecohyd.2025.100677","url":null,"abstract":"<div><div>Climate change exacerbates water scarcity globally, impacting vital wetland ecosystems that provide crucial ecological services. As a result, peatland areas experience a gradual decrease in water table levels, leading to their degradation and emphasizing the need for effective water level management strategies. This study examines the hydrological and ecological consequences of riverbed maintenance—specifically vegetation mowing—on the Upper Biebrza Valley. Using a coupled hydrodynamic-groundwater flow model supported by an Artificial Neural Network (ANN), we simulated the impacts of different mowing scenarios on groundwater levels, water balance, and vegetation response.</div><div>The results show that mowing vegetation from the riverbed temporarily lowers river water levels, which increases the hydraulic gradient and accelerates water outflow from adjacent peatlands. In the most intensive scenario, riverbed mowing led to a short-term increase of up to 24 % in groundwater discharge to the river compared to the reference (non-mowed) condition. However, this effect is temporally limited and site-specific. The impact on groundwater levels and wetland habitats varied significantly between plant communities, with species located closest to the river showing the highest sensitivity to water table decline.</div><div>These findings demonstrate that routine riverbed maintenance can negatively affect peatland hydrology and ecosystem resilience, even when applied partially. The study emphasizes the need to reassess standard maintenance practices, particularly in protected and climate-sensitive landscapes.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 4","pages":"Article 100677"},"PeriodicalIF":2.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145738919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}