Environmental Earth Sciences最新文献_第9页

Enhancing flash flood susceptibility modeling in arid regions: integrating digital soil mapping and machine learning algorithms 加强干旱地区山洪易发性建模：将数字土壤测绘与机器学习算法相结合

IF 2.8 4区环境科学与生态学

Environmental Earth Sciences Pub Date : 2025-03-15 DOI: 10.1007/s12665-025-12140-4

Zahra Sheikh, Ali Asghar Zolfaghari, Maryam Raeesi, Azadeh Soltani

{"title":"Enhancing flash flood susceptibility modeling in arid regions: integrating digital soil mapping and machine learning algorithms","authors":"Zahra Sheikh, Ali Asghar Zolfaghari, Maryam Raeesi, Azadeh Soltani","doi":"10.1007/s12665-025-12140-4","DOIUrl":"10.1007/s12665-025-12140-4","url":null,"abstract":"<div><p>Flash floods in arid regions are among the most dangerous and destructive disasters worldwide, with their frequency increasing due to intensified climate change and anthropogenic activities. This study aims to identify susceptibility areas to flash floods in arid regions, characterized by high vulnerability, numerous complexities, and unknown mechanisms. 19-flash flood causative physiographic, climatic, geological, hydrological, and environmental parameters were considered. Using the Boruta wrapper-based feature selection algorithm, temperature, distance to the river, and elevation were identified as the most effective parameters. Four standalone and hybrid machine learning models (Random Forest (RF), Support Vector Regression (SVR), GLMnet, TreeBag, and Ensemble) were employed to model and determine flash flood susceptibility maps. Based on performance evaluation metrics (accuracy, precision, recall, and Areas Under Curve (AUC) indexes), the RF and Ensemble models exhibited the best performance with values of (0.94, 0.93), (0.97, 1), (0.92, 0.88), (0.94, 0.94), respectively. The findings highlighted the previously overlooked role of soil in flood susceptibility mapping studies, particularly in areas with high levels of silt and clay soils. This study introduced digital soil mapping for the first time in flood susceptibility studies, providing an effective approach for the spatial prediction of soil properties using easily accessible remote sensing data to generate soil maps in areas with limited available data. It emphasizes the importance of examining the role of soil in arid areas during flash flood modeling and recommends using Ensemble and RF models for their high flexibility in such studies.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628726","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}

引用次数: 0

Quaternary foreland tectonics and landscape changes - a case study of Himalayan piedmont zone of Jaldhaka river system, eastern Himalaya, India 第四纪前陆构造与地貌变化--印度喜马拉雅山东部 Jaldhaka 河水系喜马拉雅山山麓地带的案例研究

IF 2.8 4区环境科学与生态学

Environmental Earth Sciences Pub Date : 2025-03-14 DOI: 10.1007/s12665-025-12181-9

Adrija Raha, Mery Biswas

{"title":"Quaternary foreland tectonics and landscape changes - a case study of Himalayan piedmont zone of Jaldhaka river system, eastern Himalaya, India","authors":"Adrija Raha, Mery Biswas","doi":"10.1007/s12665-025-12181-9","DOIUrl":"10.1007/s12665-025-12181-9","url":null,"abstract":"<div><p>The Jiti–Khuji Diana interfluve of the Himalayan piedmont zone has been considered to reanalyse the tectonic character of the Main Boundary Thrust (MBT) and Main Frontal Thrust (MFT), which are two major east–west trending structural units of the Himalayan orogen. The MBT marks a tectonic boundary between the Lesser and sub-Himalayan sequences (Gansser, Geology of Himalayas, Wiley Interscience, New York, 1964), while the MFT is the youngest deforming front that carries the Siwalik Group of rocks over the Quaternary deposits (Yin, Earth Sci Rev 76:1–131, https://doi.org/10.1016/j.earscirev.2005.05.004, 2006). This area is dissected by three main steams of the Jaldhaka system, i.e. rivers Jiti, Khuji Diana, and Thaljhora; amongst which the Thalhjora flows from east to west and the other two rivers flow roughly from NNE to SSW. Thaljhora and Chalsa fault scarps are observed, respectively, at and near the MBT and MFT. The present research focuses on significance of active Thaljhora and Chalsa fault scarps, which represent the monocline faults that deformed the geomorphic landscape. The displacement along these faults have formed a synform that uplifted over time and formed river terraces by incision processes of rivers. The analysis of morphometric indices confirms the recent neotectonic activities going on in the region. The deformed landforms, emerged as terrace and Doon-shaped valley, are observed between the Jiti fault (MBT) and Chalsa scarp (MFT). The doon-shaped valley is developed as a flat-lying surface situated between the Jiti fault and Thaljhora scarp. This study has deciphered the application of morphometric indices to study the active neotectonics.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612088","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}

引用次数: 0

Key factors in the reactivation of thick loess mudstone ancient landslides—a case study of the Gaojiawan landslide, China 厚黄土泥岩古滑坡活化的关键因素——以高家湾滑坡为例

IF 2.8 4区环境科学与生态学

Environmental Earth Sciences Pub Date : 2025-03-14 DOI: 10.1007/s12665-025-12161-z

Qingyu Xie, Qiangbing Huang, Junyan Zhao, Xiaosen Kang

{"title":"Key factors in the reactivation of thick loess mudstone ancient landslides—a case study of the Gaojiawan landslide, China","authors":"Qingyu Xie, Qiangbing Huang, Junyan Zhao, Xiaosen Kang","doi":"10.1007/s12665-025-12161-z","DOIUrl":"10.1007/s12665-025-12161-z","url":null,"abstract":"<div><p>Understanding the reactivation causes of ancient landslides is imperative for the prevention of landslides. However, the reasons for the reactivation of thick loess-mudstone ancient landslides and evolutionary mechanisms are unclear. This paper investigates the Gaojiawan thick loess-mudstone ancient landslide as an example using field investigation, InSAR time series analysis, and laboratory testing methods to analyze the reactivation deformation characteristics and reactivation causes of the thick loess mudstone ancient landslides, which were and verified by numerical simulation. The results show that fault fracture zones and groundwater primarily control the reactivation of Gaojiawan's thick loess-mudstone ancient landslide. Due to the fragmentation of rock mass and the development of structural planes in the fault fracture zones, as well as the excavation and unloading zone formed by the surrounding rock of the tunnel, it is beneficial to the enrichment of groundwater. It intensifies the interaction of groundwater-rock-fault fracture zones, especially for the red mudstone with more clay mineral content. The strength degradation is significant after encountering water, resulting in an imbalance in the stress state in deep strata and the reactivation of the landslide.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612089","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}

引用次数: 0

Assessment of soil erosion risk in the mountainous region of northeastern Türkiye based on the RUSLE model and CMIP6 climate projections 基于RUSLE模式和CMIP6气候预估的东北山区土壤侵蚀风险评估[j]

IF 2.8 4区环境科学与生态学

Environmental Earth Sciences Pub Date : 2025-03-13 DOI: 10.1007/s12665-025-12184-6

Kadir Gezici, Selim Şengül, Erdal Kesgin

{"title":"Assessment of soil erosion risk in the mountainous region of northeastern Türkiye based on the RUSLE model and CMIP6 climate projections","authors":"Kadir Gezici, Selim Şengül, Erdal Kesgin","doi":"10.1007/s12665-025-12184-6","DOIUrl":"10.1007/s12665-025-12184-6","url":null,"abstract":"<div><p>Water erosion leads to significant environmental, social, and economic challenges, such as the loss of fertile soil, reduced agricultural productivity, and water pollution. This study evaluates erosion-prone areas in the Oltu Basin, northeastern Türkiye, using the RUSLE model for the reference year (2023) and future climate scenarios (SSP245 and SSP585, 2041–2060/2061–2080). The average erosion rate for 2023 was determined as 49.90 t/ha/year, classifying 36.71% of the basin as severe or higher erosion risk. The critical vulnerability is attributed to the basin’s steep topography, with an LS factor (~ 9.87) significantly exceeding the European average. Under future climate scenarios, average erosion rates remain relatively stable (49.87–52.53 t/ha/year). However, notable spatial variations emerge, particularly in the western basin, where high-risk erosion areas are expected to increase. These changes are driven by shifts in rainfall erosivity (R factor), with a decline in maximum values but a rise in minimum values. The R factor decreased from 148.64 MJ mm/ha/h/year in 2023 to 144.90 MJ mm/ha/h/year under SSP245 (2061–2080); however, soil loss increased slightly from 49.90 t/ha/year to 50.57 t/ha/year due to the uneven spatial distribution of the R factor within the basin. This study emphasizes the spatial shifts in erosion sensitivity rather than overall averages, providing critical insights for targeted erosion control strategies. The findings will assist decision-makers in mitigating soil erosion risks and developing climate-adaptive land management policies.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12665-025-12184-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

Pyrolysis gas chromatography mass spectrometry (py-GC/MS) revealed independent effects of precipitation and temperature on diversity and molecular composition of soil organic matter 热解气相色谱-质谱分析（py-GC/MS）揭示了降水和温度对土壤有机质多样性和分子组成的独立影响

IF 2.8 4区环境科学与生态学

Environmental Earth Sciences Pub Date : 2025-03-10 DOI: 10.1007/s12665-025-12180-w

Xiaofeng Tang, Chao Chang, Ming Li

{"title":"Pyrolysis gas chromatography mass spectrometry (py-GC/MS) revealed independent effects of precipitation and temperature on diversity and molecular composition of soil organic matter","authors":"Xiaofeng Tang, Chao Chang, Ming Li","doi":"10.1007/s12665-025-12180-w","DOIUrl":"10.1007/s12665-025-12180-w","url":null,"abstract":"<div><p>Responses of soil organic matter (SOM) to changes in temperature and precipitation were helpful to understanding biogeochemical processes in soils. In the current study, two groups of soil samples were used to distinguish the respective effects of precipitation and temperature on SOM. The first group was named as mean annual temperature (MAP) gradient group including 13 samples with similar mean annual temperature (MAT) (13.0–14.9 °C) but different MAP (71.4–1072.8 mm). The second group was named as MAT gradient group including 13 samples with high MAP (> 1000 mm) but different MAT (15.9–24.8 °C). The SOM molecular composition was analyzed by a pyrolysis gas chromatography mass spectrometry. Variance partitioning analysis showed that in the MAP gradient group the variation in SOM composition was only independently explained 1% and 6% by MAT and MAP, respectively, but jointly explained 28%. In the MAT gradient group, although MAP explained 22% variation in SOM composition, MAT and MAP together explained more than 51%. These results indicated that the effect of MAT alone on SOM was negligible in the MAP gradient group and MAT was the dominant influencing factor in MAT gradient group. In the MAP gradient group, SOC content and the proportion of lignin and nitrogen-containing compounds were significantly positively related to MAP. In the MAT gradient group, the proportion of aliphatic, aliphatic and terpenoid compounds was significantly positively related to MAT but the proportion of aromatic compounds was opposite. Structural equation modeling showed that MAP was significantly positively related to SOM molecular diversity and stability, and MAT was significantly negatively related to SOM stability.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581000","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}

引用次数: 0

Investigation of climate-related influences of dams on the Artvin province of Türkiye using remote sensing data 基于遥感数据的大坝对<s:1>基耶尔省气候相关影响研究

IF 2.8 4区环境科学与生态学

Environmental Earth Sciences Pub Date : 2025-03-10 DOI: 10.1007/s12665-025-12179-3

Cigdem Serifoglu Yilmaz

{"title":"Investigation of climate-related influences of dams on the Artvin province of Türkiye using remote sensing data","authors":"Cigdem Serifoglu Yilmaz","doi":"10.1007/s12665-025-12179-3","DOIUrl":"10.1007/s12665-025-12179-3","url":null,"abstract":"<div><p>Dams are engineering structures with a substantial influence on environmental systems, making it necessary to regularly monitor their effects on the climate of the region they are located. In the recent years, the advent of remote sensing technologies has enabled faster analysis of their effects on climate, even for large-extent areas. This study aims to investigate the climate-related influences of five dams that started to receive water in 2005, 2006, 2012, 2015, and 2022 in the Artvin province of Türkiye. To do so, time series analysis were conducted using multi-sensor satellite data for the years between 1995 and 2023. To better reveal the dam reservoir-induced climate change effects, the experiments were carried out for both the entire Artvin region and the 10-km buffer zone generated through the Coruh River on which the dams were built. The investigated climate parameters included land surface temperature (LST), precipitation (Pre), evapotranspiration (ET), relative humidity (RH), heat index (HI), wind speed (WS) and normalized vegetation difference index (NDVI). The trends of these parameters were investigated with Mann-Kendall, Sen’s Slope and Pettitt tests. Dam reservoirs were found to cause a warming effect from the buffer zone to the entire region, with no significant impact on Pre. The increase in temperature led to higher ET, especially in summer, while RH decreased and HI increased, indicating drier but hotter conditions during the time period examined. Most climate changes were found to occur when the dams started filling, and the reservoirs also contributed to enhanced vegetation in the region.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12665-025-12179-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

Variations in hydraulic properties and collapse deformation of loess under vertical stress 垂直应力作用下黄土水力特性变化及崩塌变形

IF 2.8 4区环境科学与生态学

Environmental Earth Sciences Pub Date : 2025-03-10 DOI: 10.1007/s12665-025-12150-2

Guoliang Ran, Yanpeng Zhu, Tong Li, Guangke Feng, Wen Yang

{"title":"Variations in hydraulic properties and collapse deformation of loess under vertical stress","authors":"Guoliang Ran, Yanpeng Zhu, Tong Li, Guangke Feng, Wen Yang","doi":"10.1007/s12665-025-12150-2","DOIUrl":"10.1007/s12665-025-12150-2","url":null,"abstract":"<div><p>To study the effect of vertical stress on the collapsibility and hydraulic properties of Lanzhou loess during infiltration, a series of constant head permeability tests were conducted on unsaturated remolded loess under different vertical stresses using a one-dimensional soil column permeameter. The tests yielded collapse deformation curves, wetting front, cumulative infiltration volume, volumetric water content time-history curves, and soil–water characteristic curves. The unsaturated permeability coefficient was calculated using the wetting front advancement method, and its relationship with suction and volumetric water content was established. The study results indicated: (1) The wetting front advancement rate gradually slowed down over time, especially under higher vertical stress; the relationship between the wetting front advancement and time can be described by a power function. (2) The infiltration rate experienced three stages with increasing time: rapid infiltration, significant infiltration, and stable infiltration, significantly influenced by vertical stress. The relationship between cumulative infiltration volume and time can be described by the Philip infiltration model. (3) The collapse deformation over time can be divided into three stages, with stress significantly affecting the time intervals and collapse deformation amounts at each stage. (4) The soil–water characteristic curves during the infiltration process shifted upward with increasing stress, which also significantly impacts the air entry value and the absorption rate. The unsaturated permeability coefficient increased with decreasing matric suction and increased with increasing volumetric water content.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581001","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}

引用次数: 0

Impact of anthropogenic stress on runoff changes exceeded natural factors in the Yihe River, a typical rocky mountain river in northern China 义河是中国北方典型的落基山河，其径流变化受人为压力的影响超过了自然因素

IF 2.8 4区环境科学与生态学

Environmental Earth Sciences Pub Date : 2025-03-10 DOI: 10.1007/s12665-025-12131-5

Zijun Li, Jiayuan Liu, Shuwei Zheng, Zheng Xiang, Haijun Wang, Mengjie Zhao, Fei Wen, Zhijie Lu, Jinkuo Lin

{"title":"Impact of anthropogenic stress on runoff changes exceeded natural factors in the Yihe River, a typical rocky mountain river in northern China","authors":"Zijun Li, Jiayuan Liu, Shuwei Zheng, Zheng Xiang, Haijun Wang, Mengjie Zhao, Fei Wen, Zhijie Lu, Jinkuo Lin","doi":"10.1007/s12665-025-12131-5","DOIUrl":"10.1007/s12665-025-12131-5","url":null,"abstract":"<div><p>As an important component of global surface water resources, river runoff is crucial for guiding regional ecological construction and sustainable utilization. However, there is a lack of knowledge regarding the impact of anthropogenic stress, including the development and utilization of water resources, soil and water control projects, land-use changes, and the construction of water conservancy projects, on changes in runoff in rocky mountain rivers. This study focused on the runoff variation and influencing factors of the Yihe River (YHR), a typical rocky mountain river in northern China, from 1951 to 2020. The results showed that the YHR’s runoff has shown a significantly decreasing trend from 1951 to 2020 and the annual runoff of YHR varied from 0.62 × 10<sup>8</sup> to 62.10 × 10<sup>8</sup> m<sup>3</sup> with an average value of 20.23 × 10<sup>8</sup> m<sup>3</sup>/a over the past 70 years. There were three runoff variation periodicities, 6a, 12a, and 24a, respectively. Precipitation was the primary source of runoff in the YHR, which contributed 48.38% to runoff reduction between 1966 and 2020, and the impact of anthropogenic stress (including the development and utilization of water resources, soil and water control projects, land-use changes, and the construction of water conservancy projects) on the YHR runoff reduction exceeded natural factors from 1966 to 2020, with an average contribution rate of 51.62%. Thus, the ecological environment and water resource management of the YHR will face more serious challenges owing to continuously increasing anthropogenic stress in the future.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583411","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}

引用次数: 0

Analysis of the hydrogeochemical characteristics of groundwater and identification of pollution sources in facility agriculture areas using self-organizing neural networks 基于自组织神经网络的设施农业区地下水水文地球化学特征分析及污染源识别

IF 2.8 4区环境科学与生态学

Environmental Earth Sciences Pub Date : 2025-03-10 DOI: 10.1007/s12665-025-12114-6

Hui Liu, Xiaonong Hu, Henghua Zhu, Liting Xing, Zhong Han, Kai Hu, Xinze Wang, Linxian Huang

{"title":"Analysis of the hydrogeochemical characteristics of groundwater and identification of pollution sources in facility agriculture areas using self-organizing neural networks","authors":"Hui Liu, Xiaonong Hu, Henghua Zhu, Liting Xing, Zhong Han, Kai Hu, Xinze Wang, Linxian Huang","doi":"10.1007/s12665-025-12114-6","DOIUrl":"10.1007/s12665-025-12114-6","url":null,"abstract":"<div><p>Facility agriculture is a modern intensive cultivation method that is widely seen as the future of global agriculture. However, large-scale emissions of concentrated pollutants during production pose serious threats to groundwater quality. Identifying the sources of pollutants and assessing source-specific risks are critical for developing effective risk mitigation strategies. In this study, a combination of methodologies including Self-Organizing Maps (SOM), K-means clustering, factor analysis, and ion ratio analysis were utilized to investigate pollution risks in a typical facility agriculture area in Shouguang City, Shandong Province, China. The groundwater quality in the study area is poor and slightly alkaline, with NO<sub>3</sub><sup>−</sup> being the main pollutant. The chemical composition of groundwater in the aquifer is influenced by both human activities (41.89%, such as agricultural activities) and natural processes (58.11%, such as water–rock interactions). Furthermore, pollution sources in the study area were spatially categorized into two clusters: Cluster 1, mainly located on the right bank of the Mi River, is primarily related to urban domestic sewage discharge, and Cluster 2, primarily on the left bank of the Mi River, is mainly related to agricultural activities. The average concentrations of Cl<sup>−</sup> and Na<sup>+</sup>, both of which have high mobility, are significantly higher in Cluster 2 than in Cluster 1, suggesting that the groundwater system in Cluster 2 is relatively closed, resulting in higher ion concentrations and pollution levels. These findings provide valuable insights for the prevention, control, and remediation of groundwater pollution in the study area, and in facility agriculture regions generally.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580999","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}

引用次数: 0

Determining surface resistance to overland flow in semiarid field conditions with low Reynolds numbers using the Crompton framework 利用克朗普顿框架确定雷诺数较低的半干旱野外条件下地面对陆地流的阻力

IF 2.8 4区环境科学与生态学

Environmental Earth Sciences Pub Date : 2025-03-10 DOI: 10.1007/s12665-025-12177-5

J. R. B. Cantalice, V. P. Singh, Taiza K. A. Souza, E. O. S. Nunes, Genival Barros Junior, V. P. Silva Junior, Wagner L. S. Souza, Jeongwoo Han

引用次数: 0