Journal of Hydrology-Regional Studies最新文献_第10页

The driving factors of water use and its decoupling relationship with economic development—A multi-sectoral perspective in the nine provinces of the Yellow River Basin 水资源利用驱动因素及其与经济发展的脱钩关系——基于黄河流域九省的多部门视角

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2025-03-28 DOI: 10.1016/j.ejrh.2025.102338

Shengqi Jian , Xiang Cheng , Tianzi Wang , Shentang Dou

{"title":"The driving factors of water use and its decoupling relationship with economic development—A multi-sectoral perspective in the nine provinces of the Yellow River Basin","authors":"Shengqi Jian , Xiang Cheng , Tianzi Wang , Shentang Dou","doi":"10.1016/j.ejrh.2025.102338","DOIUrl":"10.1016/j.ejrh.2025.102338","url":null,"abstract":"<div><h3>Study region</h3><div>Yellow River Nine Provinces (China)</div></div><div><h3>Study focus</h3><div>This study analyzes water consumption drivers in agriculture, industry, and domestic sectors using the LMDI method. It explores the relationship between water use and economic development via the decoupling model to identify key influencing factors and regional disparities.</div></div><div><h3>New hydrological insights for the region</h3><div>The Water use intensity and economic growth had opposite effects, potentially leading to the Jevons paradox. Agricultural water-saving potential was high, with reductions in water use intensity contributing significantly in Inner Mongolia (-15.053), Shandong (-14.496), and Henan (-10.124). Industrial structure adjustments had a stronger negative impact on water use in developed provinces like Shandong (-0.425). In the domestic sector, rural consumption level played a significant role in increasing water use, with strong positive effects in Sichuan (3.754) and Henan (3.698). Urban per capita consumption showed the weakest decoupling from water use, particularly in Shandong and Henan. Strengthening agricultural water conservation, upgrading industrial structures, educating rural residents, and guiding urban water-saving habits can improve water sustainability in the Yellow River Basin.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"59 ","pages":"Article 102338"},"PeriodicalIF":4.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regional-scale assessment of groundwater recharge and the water balance for Austria 奥地利地下水补给和水平衡的区域尺度评价

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2025-03-28 DOI: 10.1016/j.ejrh.2025.102297

Hanna Zeitfogel, Mathew Herrnegger, Karsten Schulz

{"title":"Regional-scale assessment of groundwater recharge and the water balance for Austria","authors":"Hanna Zeitfogel, Mathew Herrnegger, Karsten Schulz","doi":"10.1016/j.ejrh.2025.102297","DOIUrl":"10.1016/j.ejrh.2025.102297","url":null,"abstract":"<div><h3>Study Region</h3><div>The study area covers Austria (83 900km<sup>2</sup>) and neighboring regions with transboundary river basins.</div></div><div><h3>Study Focus</h3><div>Knowledge of regional groundwater recharge patterns is essential for sustainable water resource management. Currently, Austria lacks fully spatially distributed groundwater recharge maps. The study’s aim was to develop a nationwide hydrological model that predicts groundwater recharge and the water balance components runoff, and evapotranspiration.</div><div>We implemented the rainfall-runoff model COSERO with a 1km<sup>2</sup> spatial and monthly temporal resolution. In model calibration, four objective functions were evaluated to determine the most suitable one for our modeling purpose. Additionally, a two-stage calibration procedure was integrated to capture both water balance dynamics and low-flow characteristics. Model results were verified against independent studies.</div></div><div><h3>New Hydrological Insights for the Region</h3><div>This study provides the first Austria-wide, fully spatially distributed groundwater recharge map for the World Meteorological Organization (WMO) reference period 1991–2020, along with updated water balance maps. We set up a consistent model framework, serving as a valuable resource for future climate change impact assessments.</div><div>The model simulations yielded a long-term average groundwater recharge rate in the magnitude of 373mmyear<sup>−1</sup>, 650mmyear<sup>−1</sup> runoff, and 538mmyear<sup>−1</sup> actual evapotranspiration.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"59 ","pages":"Article 102297"},"PeriodicalIF":4.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of groundwater quality for irrigation using a new customized irrigation water quality index 应用自定义灌溉水质指标评价灌溉用地下水水质

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2025-03-27 DOI: 10.1016/j.ejrh.2025.102346

Oualid Boukich , Rihab Ben-tahar , Mohamed Brahmi , Mashail N. Alzain , Omar Noman , Abdelaaty A. Shahat , Bouchra El guerrouj , Youssef Smiri

{"title":"Assessment of groundwater quality for irrigation using a new customized irrigation water quality index","authors":"Oualid Boukich , Rihab Ben-tahar , Mohamed Brahmi , Mashail N. Alzain , Omar Noman , Abdelaaty A. Shahat , Bouchra El guerrouj , Youssef Smiri","doi":"10.1016/j.ejrh.2025.102346","DOIUrl":"10.1016/j.ejrh.2025.102346","url":null,"abstract":"<div><h3>Study region</h3><div>Angads plain, Northeastern Morocco</div></div><div><h3>Study focus</h3><div>This study aims to assess groundwater quality for irrigation purposes by introducing a new customized irrigation water quality index (CIWQI) to improve precision by adapting to local hydrochemical specificities using factorial analysis.</div></div><div><h3>New hydrological insights for the region</h3><div>The results reveal a high degree of variability in groundwater quality in the study area, influenced by both natural and anthropogenic factors. Some wells contain good quality water, suitable for irrigation without major restrictions, while others have high concentrations of dissolved salts, limiting their agricultural use. Conventional indices (SAR, Na%, KR and MH) did not show seasonal variations, but the CIWQI index showed that water quality is better during the wet period (53.3 % of samples classified as moderate to good quality) compared to the dry period (22.2 % moderate quality). This index, better adapted to local specificities, more accurately reflects seasonal variations. The study underlines that the use of indices adapted to the local environment enables a more accurate assessment of water quality.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"59 ","pages":"Article 102346"},"PeriodicalIF":4.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Runoff reduction impacts riparian zone ecological security in the terminal reservoir of the central line of the South-to-North Water Diversion Project, China 南水北调中线末端水库径流减少对河岸带生态安全的影响

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2025-03-27 DOI: 10.1016/j.ejrh.2025.102342

Shengtian Yang , Huaixing Wang , Jianxin Ding , Hezhen Lou , Zihao Pan , Baichi Zhou , Jiyi Gong , Yulian Wang , Hao Li , Yunmeng Dai , Jiekang Li , Yifan Zhu , Danyang Feng , Sailong Wu

{"title":"Runoff reduction impacts riparian zone ecological security in the terminal reservoir of the central line of the South-to-North Water Diversion Project, China","authors":"Shengtian Yang , Huaixing Wang , Jianxin Ding , Hezhen Lou , Zihao Pan , Baichi Zhou , Jiyi Gong , Yulian Wang , Hao Li , Yunmeng Dai , Jiekang Li , Yifan Zhu , Danyang Feng , Sailong Wu","doi":"10.1016/j.ejrh.2025.102342","DOIUrl":"10.1016/j.ejrh.2025.102342","url":null,"abstract":"<div><h3>Study region</h3><div>The Miyun Reservoir (the terminal reservoir of the central line of the South-to-North Water Diversion Project, SNWDP) and the upstream watershed of the Miyun Reservoir (uwMR) in China.</div></div><div><h3>Study focus</h3><div>Under the influence of runoff, water intake and water diversion, the water level of the terminal reservoir of the interbasin water diversion project greatly fluctuates, which poses a threat to the ecological security of the riparian zone. Therefore, the impact of runoff reduction on the ecological security of the riparian zone of the terminal reservoir must be evaluated. This study focuses on the Miyun Reservoir and the uwMR, and the impact of upstream runoff reduction on the ecological security of the riparian zone is systematically evaluated.</div></div><div><h3>New hydrological insights for the region</h3><div>Runoff in each subbasin of the uwMR is decreasing, with climate change as the primary driver (66.69 %). As water consumption increases (0.44 × 10<sup>8</sup> m³/a) and water diversion reaches its upper limit (12.4 × 10<sup>8</sup> m<sup>3</sup>) by 2028, the riparian zone of the Miyun Reservoir will exhibit significant exposure (45.08 km<sup>2</sup>) by 2041. However, vegetation restoration is slow, requiring 19 years to stabilize, which poses a threat to riparian zone ecological security. Therefore, enhancing vegetation monitoring and implementing active restoration measures are essential. The findings offer valuable guidance for protecting the riparian ecosystems of terminal reservoirs of interbasin water transfer projects.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"59 ","pages":"Article 102342"},"PeriodicalIF":4.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatiotemporal evolution of surface water quality and driving factors across varying levels of human interference in a major subbasin of the Yellow River Basin, China 黄河流域主要次流域不同人为干扰水平下地表水水质时空演变及其驱动因素

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2025-03-27 DOI: 10.1016/j.ejrh.2025.102327

Longmei Xie , Ruizhong Gao , Xixi Wang , Limin Duan , Lijing Fang , Hui Tong , Chang Yue , Tingxi Liu

{"title":"Spatiotemporal evolution of surface water quality and driving factors across varying levels of human interference in a major subbasin of the Yellow River Basin, China","authors":"Longmei Xie , Ruizhong Gao , Xixi Wang , Limin Duan , Lijing Fang , Hui Tong , Chang Yue , Tingxi Liu","doi":"10.1016/j.ejrh.2025.102327","DOIUrl":"10.1016/j.ejrh.2025.102327","url":null,"abstract":"<div><h3>Study region</h3><div>The Dahei River Basin, a sub-basin of the Yellow River Basin, was selected for this study. Encompassing population centers and villages in Inner Mongolia, it supports vital ecosystems and underscores the need to address its unique challenges in water management and protection.</div></div><div><h3>Study focus</h3><div>This study examines surface water quality dynamics in the Dahei River Basin, a key aspect of sustainable water management. Predicting spatiotemporal variations and driving factors remains challenging. Using 2013–2023 datasets on water quality, hydrology, and meteorology, the composite pollution index (CPI), ANOVA, and generalized additive models were applied to provide insights for effective management.</div></div><div><h3>New hydrological insights for the region</h3><div>The study identified three water quality phases in the Dahei River Basin: deterioration (2013–2015), improvement (2016–2020), and stabilization (2021–2023). Seasonal variations showed better water quality (lower TN, NH<sub>4</sub><sup>+</sup>-N, TP, DO, CPI) in wet seasons. Spatial variability was highest in plains and urban areas, driven by runoff, industrial pollution, and sewage, while hilly areas showed minimal variation due to low human impact. Precipitation and sediment dynamics affected water quality in hilly areas, with large runoff events worsening contamination. Solutions include sediment removal, vegetation enhancement in hilly areas, and pollutant management during rainfall and dry seasons.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"59 ","pages":"Article 102327"},"PeriodicalIF":4.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing snow property forecasts over the tibetan plateau through hybrid assimilation of satellite precipitation and water vapor radiances using WRF model configured with Noah-MP 利用Noah-MP配置的WRF模式混合同化卫星降水和水汽辐射优化青藏高原雪性预报

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2025-03-27 DOI: 10.1016/j.ejrh.2025.102334

Jing Ren , Chunlin Huang , Jinliang Hou , Ying Zhang , Ling Yang

{"title":"Optimizing snow property forecasts over the tibetan plateau through hybrid assimilation of satellite precipitation and water vapor radiances using WRF model configured with Noah-MP","authors":"Jing Ren , Chunlin Huang , Jinliang Hou , Ying Zhang , Ling Yang","doi":"10.1016/j.ejrh.2025.102334","DOIUrl":"10.1016/j.ejrh.2025.102334","url":null,"abstract":"<div><h3>Study region</h3><div>The Eastern region of the Qinghai-Tibet Plateau (EQTP)</div></div><div><h3>Study focus</h3><div>A regional numerical weather prediction and data assimilation system is constructed to investigate the impact of assimilating Global Precipitation Measurement (GPM) precipitation and Himawari-8/Advanced Himawari Imager (AHI) water vapor radiance using Weather Research and forecast (WRF) model and Four-dimensional variational assimilation (4Dvar) method on snow properties predictions. The predictions were compared with some reference datasets, including MODIS、VIIRS、GLDAS and ERA5-land.</div></div><div><h3>New hydrological insights for the region</h3><div>DA_G&A showed a significant increase in deep snow area (SD >15 cm), and a decrease in shallow snow area (SD<5 cm). Comparing with some reference datasets, the predictions exhibit good physical consistency between snow parameters and fine temporal-spatial resolution. The forecasts are found to be reliable and reasonable. However, Noah-MP coupled in WRF tends to overestimate SCF and SAL, which is largely attributed to the limitations of the associated parameterization schemes. These findings highlight the assimilation of atmospheric data can improve the forecasting of snow properties. However, in Noah-MP, there remains significant uncertainty in the snow-related parameterization schemes and initial conditions.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"59 ","pages":"Article 102334"},"PeriodicalIF":4.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of future water availability and seasonal patterns of dry seasons under climate change in Cidanau Watershed Banten Province, Indonesia 气候变化下印尼万丹省Cidanau流域未来水资源可用量及旱季季节模式评估

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2025-03-27 DOI: 10.1016/j.ejrh.2025.102344

Septian Fauzi Dwi Saputra , Budi Indra Setiawan , Chusnul Arif , Satyanto Krido Saptomo , Atiqotun Fitriyah , Tasuku Kato

{"title":"Assessment of future water availability and seasonal patterns of dry seasons under climate change in Cidanau Watershed Banten Province, Indonesia","authors":"Septian Fauzi Dwi Saputra , Budi Indra Setiawan , Chusnul Arif , Satyanto Krido Saptomo , Atiqotun Fitriyah , Tasuku Kato","doi":"10.1016/j.ejrh.2025.102344","DOIUrl":"10.1016/j.ejrh.2025.102344","url":null,"abstract":"<div><h3>Study region</h3><div>Cidanau Watershed, Banten Province, Indonesia, features a natural wetland (caldera) surrounded by mountains.</div></div><div><h3>Study focus</h3><div>The SWAT was employed to assess future hydrological changes in water availability and seasonal patterns of dry seasons in Cidanau watershed. The dry season was determined when the rate of cumulative evapotranspiration was higher than the rate of cumulative rainfall. Using 2002 – 2021 data as a baseline, future projections were evaluated for 2030 s, 2050 s, 2070 s, 2090 s. The SWAT model has been edited with wetland input parameters and calibrated with river channel and watershed parameters.</div></div><div><h3>New hydrological insights</h3><div>1) The SWAT model performance marginally improved after incorporating wetland input and river channel parameters in parameterization process; 2) Projected increase in mean Tmin & Tmax range from 0.5°C to 2.9°C, while mean annual rainfall is expected to decrease by −7 %– –10.3 % compare to the baseline periods; 3) As the result, the annual water yield is projected to decline by –11 % – –26 %, with the rainy season experiencing the most significant reduction; 4) The length of dry seasons is projected to increase, further impacting water availability; 5) Additionally, the frequency of extended dry seasons is expected to increase under future climate scenarios. This study highlights the anticipated decline in water availability and shifting dry season pattern, supporting decision-maker in developing adaptive and mitigation strategies for future climate challenges.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"59 ","pages":"Article 102344"},"PeriodicalIF":4.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of vegetation restoration on preferential flow and soil infiltration capacity in the hilly region of the Loess Plateau 黄土丘陵区植被恢复对优先流和土壤入渗能力的影响

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2025-03-26 DOI: 10.1016/j.ejrh.2025.102333

Shuyu Zhang , Yuanhao Liu , Mingyue Yang , Peng Tian , Xingmin Mu , Guangju Zhao

{"title":"Impact of vegetation restoration on preferential flow and soil infiltration capacity in the hilly region of the Loess Plateau","authors":"Shuyu Zhang , Yuanhao Liu , Mingyue Yang , Peng Tian , Xingmin Mu , Guangju Zhao","doi":"10.1016/j.ejrh.2025.102333","DOIUrl":"10.1016/j.ejrh.2025.102333","url":null,"abstract":"<div><h3>Study region</h3><div>The Zhifanggou Watershed, a typical watershed in the hilly region of Loess Plateau in China.</div></div><div><h3>Study focus</h3><div>Assessing effects of various vegetation types on soil water infiltration facilitates understanding of soil hydrological processes and provides valuable references for reforestation in arid areas. Double-ring infiltrometers and dye tracing were employed across plots with various vegetation types and restoration durations to comprehensively investigate the impact of vegetation restoration on soil infiltration capacity, preferential flow, and their influencing factors.</div></div><div><h3>New hydrological insight for the region</h3><div>The results showed that the highest stable infiltration rate occurred in 30-year-old replanted monoculture forestland (0.57 cm min⁻¹), followed by 30-year-old replanted shrubland (0.42 cm min⁻¹). Monocultured forestland had slightly higher soil infiltration rates than mixed forestland, with macropore flow was dominant. Mixed forestlands exhibited the highest degree of preferential flow and the most preferential flow paths. Soil infiltration capacity and preferential flow paths increased with restoration years, and preferential flow was promoted in deeper soil layers. Soil macroporosity, clay content, and root length density predominantly influenced soil infiltration capacity and dye-stained characteristics parameters. Root characteristics were critical for the degree of preferential flow, with rock fragment and cracks also being not negligible factors. These findings could deepen our understanding of vegetation restoration in improving soil hydrological functions, and provide a reference for the management of vegetation restoration.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"59 ","pages":"Article 102333"},"PeriodicalIF":4.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatio-temporal dynamics of water quality and land use in the Lake Dianchi (China) system: A multi-source data-driven approach 滇池系统水质与土地利用时空动态：多源数据驱动方法

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2025-03-26 DOI: 10.1016/j.ejrh.2025.102341

Xinyu Wang , Yawen Wu , Samuel A. Cushman , Cheng Tie , Gillian Lawson , László Kollányi , Guifang Wang , Jian Ma , Jingli Zhang , Tian Bai

{"title":"Spatio-temporal dynamics of water quality and land use in the Lake Dianchi (China) system: A multi-source data-driven approach","authors":"Xinyu Wang , Yawen Wu , Samuel A. Cushman , Cheng Tie , Gillian Lawson , László Kollányi , Guifang Wang , Jian Ma , Jingli Zhang , Tian Bai","doi":"10.1016/j.ejrh.2025.102341","DOIUrl":"10.1016/j.ejrh.2025.102341","url":null,"abstract":"<div><h3>Study region</h3><div>Lake Dianchi, China.</div></div><div><h3>Study focus</h3><div>Urbanization and land development increasingly challenge water quality, yet their interactions remain unclear. This study examines these interactions in Lake Dianchi by developing an empirical water quality inversion model. Multi-year water quality data from monitoring stations were integrated with Landsat 8 L2 data to analyze seven key Water Quality Parameters (WQPs): TP, Hg, Cd, As, Zn, S, and NH₃-N. Land use was assessed using a multi-dimensional framework incorporating weighted overlays of multi-source data. The relationships between land use and water quality were analyzed using Spearman correlation, redundancy analysis (RDA), and the Optimal Parameter Geodetector (OPGD).</div></div><div><h3>New hydrological insights for the region</h3><div>From 2014–2022, pollutant concentrations declined, yet TP pollution remains severe, keeping the lake classified as Class V. Pollution was more concentrated in Caohai than Waihai, highlighting point-source pollution. Land use changes were dominated by “urban expansion” and the “returning farmland to forest” program. RDA results indicated that construction (positive) and farmland (negative) were the primary drivers of WPI. OPGD analysis showed that FACI∩CACI was the strongest explanatory factor for WPI. Over time, land use influence on WPI weakened due to urban saturation, environmental policies, and delayed water quality responses. These findings quantify land use-water quality interactions and provide insights for managing urban plateau lakes amid rapid development.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"59 ","pages":"Article 102341"},"PeriodicalIF":4.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Examining the complexity of discharge-suspended sediment behaviour of a tropical monsoon-dominated river, India 研究印度一条热带季风主导的河流的流量悬浮泥沙行为的复杂性

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2025-03-25 DOI: 10.1016/j.ejrh.2025.102335

Balai Chandra Das , Aznarul Islam , Sadik Mahammad , Edris Alam , Abu Reza Md Towfiqul Islam , Biplab Sarkar , Suman Deb Barman , Subodh Chandra Pal , Md Kamrul Islam

{"title":"Examining the complexity of discharge-suspended sediment behaviour of a tropical monsoon-dominated river, India","authors":"Balai Chandra Das , Aznarul Islam , Sadik Mahammad , Edris Alam , Abu Reza Md Towfiqul Islam , Biplab Sarkar , Suman Deb Barman , Subodh Chandra Pal , Md Kamrul Islam","doi":"10.1016/j.ejrh.2025.102335","DOIUrl":"10.1016/j.ejrh.2025.102335","url":null,"abstract":"<div><h3>Study region</h3><div>Multiple gauging stations of the Brahmani River Basin, India.</div></div><div><h3>Study focus</h3><div>This study provides an understanding of sediment transport complexities in monsoon-type rivers and supports informed decision-making for effective river management and environmental conservation. It also underscores the impact of surface landscape, the management of reservoirs and the role of anthropogenic impacts on sediment transport dynamics.</div></div><div><h3>New hydrological insights for the region</h3><div>River discharge and sediment concentration are measured at four gauging stations of Brahmani River: Tilga, Panposh, Gomlai, and Jenapur. The first three are located in the upper reaches above the Rengali Dam, while Jenapur is in the plain area below the dam. The analysis reveals diverse correlations for fine sediment (<0.075 mm), ranging from linear at Tilga to logarithmic at Panposh and power-law at Gomlai. Medium sediment (0.075–0.2 mm) exhibits linear and logarithmic correlations at Tilga and Panposh while coarse sediment (>0.2 mm) displays logarithmic correlations at Panposh and Gomlai. Total sediment concentrations showcase both linear and logarithmic relationships at Tilga and Panposh, indicating the complexity of sediment-transport dynamics. The study unveils compelling relationships between river discharge and total sediment load (MT/day), with notable power-lla correlations at Gomlai, emphasising the influence of river discharge variations on sediment transport quantity. It underscores the impact of surface geology, the location of reservoirs and the role of anthropogenic interventions on sediment dynamics.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"59 ","pages":"Article 102335"},"PeriodicalIF":4.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0