Science of the Total Environment最新文献

{"title":"Insights into suspended sediment and microplastic budget of a lowland river: integrating in-situ measurements, Sentinel-2 imagery, and machine learning","authors":"Ahmed Mohsen ,&nbsp;Ferenc Kovács ,&nbsp;Sándor Baranya ,&nbsp;Csilla Károlyi ,&nbsp;Diaa Sheishah ,&nbsp;Tímea Kiss","doi":"10.1016/j.scitotenv.2025.179716","DOIUrl":"10.1016/j.scitotenv.2025.179716","url":null,"abstract":"<div><div>The calculations on fluvial microplastic load (MPL) provide dynamic and actionable metrics for understanding microplastic (MP) particle emissions to the downstream environment. However, most of the concentration data reported in the literature do not reflect the total amount of transported MPs. This study aims to quantify the MPLs in the Middle and Lower Tisza River, Hungary by combining multiscale, frequent in-situ measurements of MP concentration (MPC) and suspended sediment concentration (SSC) in the river with Sentinel-2 and ANN-based models. MPC data were integrated with daily water discharge, applying correction factors to account for vertical variability in the water column. The results indicate the crucial role of hydrology in suspended sediment (SS) and MP transport. During floods SS load (SSL) (6706 ± 7449 ton/day) and MPL (1.71 × 10⁹ ± 1.40 × 10⁹ item/day) were 6.5 and 5.1 times higher than at low stage (SSL: 1031 ± 755 ton/day; MPL: 0.339 × 10⁹ ± 0.399 × 10⁹ item/day), respectively. Vertical measurements indicated a generally increasing SSC trend toward the riverbed, amplifying the SSL correction factor, while decreasing MPC led to attenuation for MPL correction factors. Satellite-derived estimates at four sites in the Middle and Lower Tisza revealed an increasing downstream trend in SSL and MPL, although natural and anthropogenic factors slightly influence this trend. Rating curves were established at the four sites with an R² range of 0.55 (Mindszent) to 0.82 (Zenta) for SSL and 0.53 (Mindszent) for MPL. Although the accuracy of the rating curves is moderate to very strong, they still offer practical predictions based solely on water discharge data.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"984 ","pages":"Article 179716"},"PeriodicalIF":8.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"DNA index determination by flow cytometry and TEM imaging of the ultrastructure of L929 cells exposed to a Euro 6 diesel exhaust gas mixture in a Bio-Ambient-Tests chamber","authors":"Aleksandra Kęska ,&nbsp;Michał Kulus ,&nbsp;Katarzyna Haczkiewicz-Leśniak","doi":"10.1016/j.scitotenv.2025.179726","DOIUrl":"10.1016/j.scitotenv.2025.179726","url":null,"abstract":"<div><div>Despite the development of electromobility, diesel engines still constitute a significant share of transportation. Given the complex composition of diesel exhaust emissions and their potential cytotoxic effects, it is crucial to investigate their impact on cellular structures to better understand their implications for human health. The aim of this study was to investigate the impact of a Euro 6 diesel exhaust gas mixture on L929 cells. The research was conducted using the BAT-CELL method, which allows for the direct exposure of cells to pollutants under controlled laboratory conditions. Flow cytometry was employed to analyze the cell cycle and determine viability of cells, while transmission electron microscopy (TEM) was used to assess the ultrastructure of the cells. The results revealed significant changes in cell structure and differences in proliferation and viability depending on the engine operating conditions. Notably, exposure to exhaust gases during idling and at a speed of 120 km/h led to significant mitochondrial damage and the activation of death processes. These findings provide important data on the cytotoxicity of diesel exhaust gases and may contribute to a better understanding of the impact of pollutants on human health.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"984 ","pages":"Article 179726"},"PeriodicalIF":8.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Bioturbation and the resuspension of plastic pollutants by spawning common carp degrades lake water quality","authors":"Scott F. Collins","doi":"10.1016/j.scitotenv.2025.179718","DOIUrl":"10.1016/j.scitotenv.2025.179718","url":null,"abstract":"<div><div>Here, findings from a before-after-control-impact (BACI) field experiment are presented that tested the hypothesis that bioturbation (i.e., sediment disturbance through animal activities) from an invasive population of common carp (<em>Cyprinus carpio</em>) degrades water quality by resuspending microplastics and microfibers in lake surface waters during the spawning season. Concentrations of total suspended solids (TSS), microplastics (MP/L), and microfibers (MF/L) were compared before, during, and after a carp spawning event to assess the magnitude and duration of disturbance effects. Concentrations of total suspended solids, microplastics, and microfibers were all similar across sampling sites prior to spawning. As spawning commenced, carp bioturbation increased concentrations of TSS, microplastics, and microfibers by 2–3 times relative to control sites. After spawning ended, TSS and microplastic fragments each returned to ambient concentrations whereas microfiber concentrations remained higher than control sites for multiple weeks. Findings from this study expand the harmful environmental effects of invasive carp to the resuspension of microplastic pollutants and the degradation of lake water quality. Given the widespread distribution of common carp and their propensity for disturbing habitats and eroding water quality, the phenomena described in this study likely extends to many other lakes, floodplain and backwater habitats, ponds, and rivers polluted with plastics and other contaminants.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"984 ","pages":"Article 179718"},"PeriodicalIF":8.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Assessing the effects of urban effluent pollution on freshwater biodiversity and community networks using eDNA metabarcoding","authors":"Mélanie Dominique ,&nbsp;Magali Houde ,&nbsp;Louis Astorg ,&nbsp;Jennifer Pham ,&nbsp;Susanne Kraemer ,&nbsp;Andrée Gendron ,&nbsp;Sébastien Sauvé ,&nbsp;Maude Lachapelle ,&nbsp;Conrad Beauvais ,&nbsp;Zofia E. Taranu","doi":"10.1016/j.scitotenv.2025.179690","DOIUrl":"10.1016/j.scitotenv.2025.179690","url":null,"abstract":"<div><div>Aquatic ecosystems provide essential services, yet they face increasing pressures from anthropogenic activities, including land-use change, eutrophication, browning, and contaminant pollution. While the ecological effects of these stressors are documented, the impacts of complex contaminant mixtures, particularly those from wastewater treatment plant (WWTP) effluents, remain poorly understood. Mixtures effects are typically assessed using traditional species-by-species toxicological approaches, which, though the gold standard, are time-intensive, require test animals, and have limited extrapolability. New Approach Methodologies (NAMs), such as environmental DNA (eDNA), offer a non-invasive alternative, enabling broader assessments of taxa responses across trophic levels. Here, we apply an eDNA approach to assess community-wide responses to effluent discharge in the St. Lawrence River, one of North America's most diverse freshwater ecosystems. We sampled water and aquatic communities along the effluent plume of the Montréal WWTP, analyzing taxa-specific responses across trophic levels using high-throughput sequencing. We evaluated the influence of water physico-chemistry and <em>per</em>- and polyfluoroalkyl substances (PFAS) on aquatic beta diversity and network structure. To validate our eDNA results, we compared fish-specific detections with traditional fishing surveys. Our findings highlight how wastewater-derived contaminants influence biodiversity patterns and species interactions, with taxonomic responses varying across trophic levels. Network analyses revealed shifts in ecological stability, with changes in species connectivity and modularity influenced by effluent exposure. This study demonstrates the value of eDNA for characterizing biodiversity responses to anthropogenic stressors and provides insights into the broader implications of point-source pollution for freshwater ecosystem resilience.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"984 ","pages":"Article 179690"},"PeriodicalIF":8.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Future projections of thermal and chemical stratifications in reservoir under the impact of climate change","authors":"Mohammad Reza Nikoo ,&nbsp;Mohammad G. Zamani ,&nbsp;Sadegh Vanda ,&nbsp;Raziyeh Farmani ,&nbsp;Jiří Šimůnek ,&nbsp;Ahmed Al Sinani","doi":"10.1016/j.scitotenv.2025.179722","DOIUrl":"10.1016/j.scitotenv.2025.179722","url":null,"abstract":"<div><div>Vertical stratification is a fundamental characteristic of water bodies that significantly affects vertical convection and mixing dynamics. With the impact of climate change, thermal and chemical stratification in lakes and reservoirs has been exacerbated, leading to more pronounced environmental and ecological challenges. While previous studies have identified the impact of climate change on reservoir stratification, they have primarily focused on temperature variations in future periods. This study goes beyond temperature and the direct outputs of General Circulation Models (GCMs) by also considering inflow volume and temperature, providing a more comprehensive assessment of climate change effects on both thermal and chemical stratification. To do so, this study developed a two-dimensional hydrodynamic model, i.e., CE-QUAL-W2, to investigate the thermal and chemical responses of the Wadi Dayqah Reservoir, located in Oman, to projected climate change. The results indicated that under the SSP1–2.6 scenario, the annual mean inflow temperature remained largely unchanged, whereas the SSP2–4.5 and SSP5–8.5 scenarios induced significant increases. Additionally, climate change led to a prolonged persistence of summer thermal and chemical stratification, with the most substantial delay occurring under the SSP5–8.5 scenario. Moreover, the SSP5–8.5 scenario exhibited a significantly higher frequency of critical chemical index occurrences than SSP2–4.5 and SSP1–2.6, highlighting the strong interdependence between thermal and chemical stratification in reservoir systems. Under SSP1–2.6, SSP2–4.5, and SSP5–8.5, thermal stratification (SI) is expected to rise by 12 %, 26 %, and 43 % by the end of the century. The chemical stratification index (CI) is anticipated to climb by 9 %, 21 %, and 38 % in the same scenarios, indicating higher warming routes intensifying stratification. These findings emphasize the urgent need for emission reduction strategies to mitigate climate-induced warming, maintain thermal stability, and protect reservoir ecosystems from extreme stratification under future climate scenarios.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"984 ","pages":"Article 179722"},"PeriodicalIF":8.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Those floating materials in the northern Adriatic Sea: Observations from satellites","authors":"Madjid Hadjal ,&nbsp;Brian B. Barnes ,&nbsp;Lin Qi ,&nbsp;Karlis Mikelsons ,&nbsp;Menghua Wang ,&nbsp;Chuanmin Hu","doi":"10.1016/j.scitotenv.2025.179662","DOIUrl":"10.1016/j.scitotenv.2025.179662","url":null,"abstract":"<div><div>In August 2024, surface aggregations of unknown materials were captured in NOAA's OCView quick look medium-resolution satellite images over the northern Adriatic Sea (NAS), posing the question of whether these images features are caused by surface accumulation of mucilage (also called “sea snot”), red <em>Noctiluca scintillans</em> (RNS), or marine litter. All have been reported before in the NAS, which have caused various issues to fisheries and tourism. While the current effort in monitoring of the region is through monthly <em>in situ</em> sampling, inspired by these quick look satellite images, this study aims to provide a synoptic view of the various floating materials using satellite imagery between 1972 and 2024 through spectral reflectance analysis. Large-scale mucilage features were found during summer in a total of 10 years, from 1988 to 2024. RNS features were detected during spring, with the earliest event captured in 1980 and subsequent events in 1989 and 1998. Since 1998, 12 RNS events have been observed, with surface areas ranging from a few km² (1998 and 2014) to most of the NAS (2001, 2012 and 2021). Similarly, durations of the RNS events ranged from one day to three months. Both mucilage and RNS were found in the western part of the NAS, near the River Po delta. In addition, pollen was also observed in the eastern NAS and near the Kvarner Islands, occurring during May and with a recent increasing trend. The co-occurring environmental factors have also been analyzed and explored to determine what could possibly lead to these large events, but without positive findings.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"984 ","pages":"Article 179662"},"PeriodicalIF":8.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144131034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Response to commentary by Hollis et al. on “The development of soil health benchmarks for managed and semi-natural landscapes”","authors":"Christopher J. Feeney,&nbsp;David A. Robinson,&nbsp;Bridget A. Emmett","doi":"10.1016/j.scitotenv.2025.179711","DOIUrl":"10.1016/j.scitotenv.2025.179711","url":null,"abstract":"","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"984 ","pages":"Article 179711"},"PeriodicalIF":8.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"In situ occurrence and mobility of per and polyfluoroalkyl substances in soils amended with organic waste products","authors":"Aurélia Marcelline Michaud ,&nbsp;Toyin Dunsin Saliu ,&nbsp;Gabriel Munoz ,&nbsp;Frédéric Feder ,&nbsp;Valérie Sappin-Didier ,&nbsp;Françoise Watteau ,&nbsp;Sabine Houot ,&nbsp;Sébastien Sauvé","doi":"10.1016/j.scitotenv.2025.179708","DOIUrl":"10.1016/j.scitotenv.2025.179708","url":null,"abstract":"<div><div>We evaluated the in situ occurrence and soil-water distribution of 75 anionic, zwitterionic, and cationic <em>per</em>- and polyfluoroalkyl substances (PFAS) in soils from five field experimental sites distributed in different climatic regions in France. Four sites received agronomical doses of organic waste products (OWPs, ∼5–10 t/ha per application) with repeated inputs between 1974 and 1996 (2 historical sites) and 1998–2018 (2 on-going sites), while one site received about two-fold larger amounts. Control soils without OWP application had detectable yet low PFAS levels, the Σ75PFAS remaining in most cases below 1 μg/kg. Soils amended with municipal sludge or urban composts exhibited the largest Σ75PFAS increase relative to controls (∼2–20 μg/kg), with soils receiving biowaste composts displaying the lowest Σ75PFAS (∼2 μg/kg). In most cases, Σ75PFAS increased significantly with time. While perfluorooctane sulfonate (PFOS) typically dominated the PFAS profiles in municipal sludge-amended soils, the other prevalent PFAS classes varied with sites and years: soils from older sites also had anionic and cationic electrochemical fluorination-derived precursors (e.g., EtFOSAA and PFOSAmS), while on-going sites had increased prevalence of short-chain perfluoroalkyl carboxylates (PFCAs) (3 sites) and perfluoroalkyl phosphinates (1 site). Interestingly, 6:2 fluorotelomer sulfonamidopropyl betaine (6:2 FTAB), a major zwitterionic precursor found in French municipal sludge, was only detected at low levels in soils, indicating its transformation to degradation products. Leaching waters at a depth of 45 cm in the experimental plots had high levels of short-chain PFCAs (Mean C3-C5: 120–160 ng/L; Max C3-C5: 900–1600 ng/L), suggesting that land applied OWP containing PFCA precursors are important contributors to long-term groundwater contamination.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"984 ","pages":"Article 179708"},"PeriodicalIF":8.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Occurrence and environmental risk assessment of pesticides reveal important threats to aquatic organisms in precordilleran rivers of north-central Chile","authors":"Nicolas Gouin ,&nbsp;Angéline Bertin ,&nbsp;Daniel D. Snow ,&nbsp;Adriana Lozada ,&nbsp;Frédéric Grandjean ,&nbsp;Alan S. Kolok","doi":"10.1016/j.scitotenv.2025.179701","DOIUrl":"10.1016/j.scitotenv.2025.179701","url":null,"abstract":"<div><div>While pesticides are essential for food production, their widespread use poses environmental risks beyond lowland areas. Recent evidence indicates that mountain ecosystems are also vulnerable due to both local agriculture and long-range atmospheric transport. This study assesses pesticide contamination and ecological risks in five mountainous agricultural watersheds of north-central Chile, where pesticides support intensive crop production. Using primarily polar organic chemical integrative samplers (POCIS), complemented by sediment samples, we found pesticides at 26 of 30 sampled sites. Detection varied by location and method. Desethylatrazine, an atrazine metabolite, was most frequently found in POCIS samples, detected at 20 sites across all watersheds. While other pesticides only occurred at few sites, their presence across multiple, geographically dispersed locations contributed to extensive ecological risk. Northern watersheds (Limarí, Choapa, Aconcagua) showed the highest ecological risks, despite lower pesticide loads, due to the presence of highly toxic insecticides. Key factors influencing pesticide distribution included water conductivity, agricultural land use, and latitude. Ecotoxicological risk assessments revealed eight pesticides exceeding high-risk thresholds for aquatic organisms—mainly insecticides and fungicides. Pyrethroids such as deltamethrin, cyfluthrin, and <em>lambda</em>-cyhalothrin posed severe threats to fish and invertebrates. High-risk levels were also detected in sediments, particularly in the northernmost Limarí watershed. These findings underscore the urgent need for targeted monitoring and stricter pesticide regulation in mountain freshwater ecosystems of Chile, which are vital water sources and harbor unique biodiversity. This study provides one of the first comprehensive evaluations of pesticide risks in mountainous rivers, highlighting the ecological threats from agricultural contaminants.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"984 ","pages":"Article 179701"},"PeriodicalIF":8.2,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Human impact on the functional diversity of Gerromorpha (Hemiptera: Heteroptera) and differential sexual dimorphism responses in Amazonian aquatic ecosystems","authors":"Alana Patricia Meguy Guterres ,&nbsp;Erlane José Cunha ,&nbsp;Felipe Ferraz Figueiredo Moreira ,&nbsp;Naiara Raiol Torres ,&nbsp;Leandro Juen","doi":"10.1016/j.scitotenv.2025.179534","DOIUrl":"10.1016/j.scitotenv.2025.179534","url":null,"abstract":"<div><div>Human activities impact the morphology and function of species, especially in aquatic ecosystems. However, little is known about how these effects influence intraspecific variation associated with sexual dimorphism. Therefore, it is essential to study organisms with conspicuous intersexual variations, such as semiaquatic bugs (Hemiptera: Heteroptera: Gerromorpha). This study aimed to assess the effect of land-use changes, conventional logging, reduced-impact logging, pasture, and mining activities on the taxonomic (alpha), functional (Fric and FEve) and beta functional (βF) diversity of semiaquatic bugs, with an emphasis on sexual dimorphism. We tested the following hypotheses: (i) habitat loss reduces the diversity; (ii) larger species are associated with forested streams, while species with slower locomotion are associated with low forest cover; (iii) male βF is driven by trait richness difference, while female βF is driven by trait replacement. We sampled 77 streams in the Capim river basin (Amazon, Brazil). CL and PST streams are associated with agricultural impact and high conductivity, whereas RIL streams were similar to forested sites environmentally and in composition. Environmental filters influenced only the taxonomic composition of males. In contrast, females had longer bodies and legs in forest environments and differed in βF, mainly due to traits loss/gain. Our results highlight the importance of forest conservation and the use of economic practices that cause less damage, as well as evaluating such effects under different biodiversity approaches and including intraspecific variation.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"984 ","pages":"Article 179534"},"PeriodicalIF":8.2,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}