Article
Engineering, Civil
Chong Zhang, Qingyun Duan, Pat J-F Yeh, Yun Pan, Huili Gong, Hamid Moradkhani, Wei Gong, Xiaohui Lei, Weihong Liao, Lei Xu, Zhiyong Huang, Longqun Zheng, Xueru Guo
Summary: The study investigated the impact of the South-to-North water diversion Middle Route Project (MRP) on groundwater storage in North China Plain (NCP) by comparing changes before and after MRP operation. It found a significant recovery trend in groundwater storage after the operation of MRP, particularly in regions where groundwater over-utilization had occurred.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Xiao Yu, Guoquan Wang, Xie Hu, Yuhao Liu, Yan Bao
Summary: The South-to-North Water Diversion (SNWD) is an infrastructure project in China that aims to alleviate water shortages in north China. It has had significant social, economic, environmental, and ecological impacts, particularly in the Beijing-Tianjin metropolitan area, since 2015. This study used various data sources to assess the impacts of SNWD on land subsidence in Tianjin and revealed that reduced groundwater pumping due to SNWD has slowed down the overall subsidence. The findings also highlight the importance of coordinating groundwater and surface water uses for land subsidence mitigation.
Article
Environmental Sciences
Jialin Wang, Chong Zhang, Ling Xiong, Guangdong Song, Fei Liu
Summary: The occurrence of antibiotics in groundwater is influenced by various factors, including pollutant properties, pollution sources, and groundwater recharge and discharge conditions. This study investigates the relationship between antibiotic occurrence and hydrochemistry in a specific aquifer. The results show that there are two pollution areas and a positive correlation between inorganic compounds and mobile antibiotics. The study highlights the importance of a comprehensive geochemical study in understanding the extent of antibiotic occurrence.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Kunchao Lei, Fengshan Ma, Beibei Chen, Yong Luo, Wenjun Cui, Long Zhao, Xinhui Wang, Aihua Sun
Summary: The South-to-North Water Diversion Project Central Route is the largest water control project ever built, aimed at reallocating water resources from South China to North China. Since its operation in 2014, it has significantly changed the water supply pattern in Beijing and reduced groundwater extraction and land subsidence.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Geochemistry & Geophysics
Danyang Sun, Junxia Li, Hexue Li, Qiang Liu, Shilin Zhao, Yihong Huang, Qianyi Wu, Xianjun Xie
Summary: The South-to-North Water Diversion Project (SNWDP) has improved water shortage but its impact on groundwater chemistry, particularly fluoride and salinity, is still unclear. Research conducted in Cangzhou, a recipient city of the SNWDP, found that fluoride concentration decreased after the project, especially in areas with land subsidence. However, groundwater salinity increased after the SNWDP, leading to a rise in fluoride concentration. The findings provide valuable insights for groundwater resource management.
APPLIED GEOCHEMISTRY
(2022)
Article
Environmental Sciences
Yuyue Xu, Zhao Gun, Jianwei Zhao, Jianli Chen, Qing Liu, Xing Cheng, Edwin H. Sutanudjaja, Jida Wang, Hehua Liu, Wenfeng Zhan
Summary: In this study, the changes in water storage in the water-receiving area of the South-to-North Water Diversion Eastern Route Project (SNWDP-ER) were analyzed using the latest Gravity Recovery and Climate Experiment (GRACE) technology. The study found that the implementation of SNWDP-ER aided the recovery of surface water but had little effect on groundwater and terrestrial water storage. Human activity and climate change have accelerated the decline of groundwater, leading to a decrease in terrestrial water storage.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Wenting Yang, Di Long, Bridget R. Scanlon, Peter Burek, Caijin Zhang, Zhongying Han, James J. Butler, Yun Pan, Xiaohui Lei, Yoshihide Wada
Summary: The North China Plain has experienced groundwater overexploitation due to rapid socio-economic development and irrigation demand. The operation of the South-to-North Water Diversion Project has provided an opportunity to sustain groundwater resources. This study used a high-resolution model to simulate and project groundwater storage in the region, and found that water diversion and reductions in water use could increase groundwater storage.
WATER RESOURCES RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Wei Cai, Qiuyun Huang, Huiyu Li, Haomiao Cheng, Yi Li, Jian Hu
Summary: This study analyzed the longitudinal distribution characteristics of microbial communities in water diversion rivers of the East Route of the South-to-North Water Diversion Project using 16S rRNA sequencing. The results showed obvious distribution patterns of microbial communities along the water diversion line. External factors such as ammonium, total nitrogen, conductivity, and total phosphorus had significant impacts on the spatial variation of microbial communities, while species replacement mainly affected the longitudinal construction of microbial communities.
CLEAN-SOIL AIR WATER
(2022)
Article
Environmental Sciences
Yan Long, Mengjuan Feng, Youming Li, Jia Qu, Wei Gao
Summary: A comprehensive risk evaluation system for algae and shellfish in the middle route of the South-to-North Water Diversion Project was constructed using the analytic hierarchy process (AHP) and the weight assignment theory of criteria importance through intercriteria (CRITIC). The system was applied to the Henan section, demonstrating that the algae and shellfish are in a very safe state at the safety risk level of level I.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Shasha Zhang, Yiming Pang, Hangzhou Xu, Jielin Wei, Shan Jiang, Haiyan Pei
Summary: There is still no consensus on the effects of changes in environmental factors caused by water diversion on phytoplankton communities. This study revealed the changing rules of phytoplankton communities under water diversion based on long-term observations in Luoma Lake. The results showed that nitrogen initially decreased and then increased, while phosphorus increased after the implementation of the water transfer project. Algal density and diversity were not affected by water diversion, but the duration of high algal density decreased. The composition of phytoplankton communities also changed significantly after water transfer. The findings of this study provide important insights into the impacts of water diversion on water environments and phytoplankton communities.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Civil
Zheyuan Du, Linlin Ge, Alex Hay-Man Ng, Xugang Lian, Qinggaozi Zhu, Finbarr G. Horgan, Qi Zhang
Summary: Following the operation of the middle route of the South-to-North Water Diversion Project, the total water transfer to Beijing has exceeded 5.0 km(3), leading to significant changes in Beijing's water use structure. While the SNWDP has helped alleviate land subsidence issues in Beijing, the main pressure on Beijing's water supply still comes from improved living standards, the popularization of water-using appliances, and rapid development in the accommodation and catering industries. With an expected increase in precipitation in the Beijing region over the next decade, there is a greater likelihood of rapid groundwater recovery, but climate extremes could potentially challenge the success of the SNWDP during certain dry periods.
JOURNAL OF HYDROLOGY
(2021)
Article
Biodiversity Conservation
Ming Tang, Wentao Xu, Chi Zhang, Dongguo Shao, Hanjie Zhou, Yanlei Li
Summary: This study establishes probability density models for eight water quality indicators in the Middle Route of South-to-North Water Diversion Project of China (MRSNWDPC) based on real-time monitoring data. By defining water quality risks and calculating risk levels, it can predict water quality risks in the next month. The study finds that water quality deterioration exists in the MRSNWDPC, with higher risks observed for pH, dissolved oxygen, and BOD5. The risk assessment method proposed in this study can serve as an early warning system for water quality management in the MRSNWDPC.
ECOLOGICAL INDICATORS
(2022)
Article
Remote Sensing
Nan Wang, Dangqiang Wang, Jie Dong, Yuncai Liu, Lu Zhang, Mingsheng Liao
Summary: In this study, multiple SAR satellites were used to monitor the Changge Canal of the South-to-North Water Diversion Project in China using Synthetic Aperture Radar Interferometry. The results showed that the canal is experiencing continuous deformation due to nearby coal mining activity, with vertical and horizontal distortions reaching ±1.5 mm/100 m. Therefore, InSAR is an effective tool for monitoring the fine deformation of canal structures.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2023)
Article
Environmental Sciences
Yuxuan Zhang, Ranhang Zhao, Haofang Wang, Tao Peng, Huaqing Zhao
Summary: Water quality assurance is crucial for the successful operation of water diversion projects, and rapid prediction of water pollution can provide timely and effective emergency control measures. This paper developed a rapid prediction method and established a water quality rapid prediction model, demonstrating the validity and significance of the model in ensuring water transport security in extreme conditions of long-distance water transfer projects.
Article
Environmental Sciences
Dawei Zhang, Xiaolin Han, Qiang Zhong, Shulei Wang, Liuqian Ding, Yuan Liu, Qigang Chen, Fujun Wang
Summary: The middle route project of the South to North Water Diversion Project is an important infrastructure project for alleviating water scarcity in Northern China. It has faced challenges with untraditional siltation problems, which have been studied to understand their characteristics and time period. Monitoring results indicate that siltation mainly occurs from March to October and is primarily due to the remnants of proliferating algae.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Studies
Muneta Yokomatsu, Junko Mochizuki, Julian Joseph, Peter Burek, Taher Kahil
Summary: The authors present a dynamic macroeconomic model for assessing disaster risk reduction policies. The model allows for the analysis and comparison of potential policies in terms of their economic consequences, providing a better understanding of the benefits of DRR investments.
DISASTER PREVENTION AND MANAGEMENT
(2023)
Article
Agronomy
Wenjing Yang, Yong Zhao, Huade Guan, Yingfu Tang, Mingming Yang, Qingming Wang, Jianshi Zhao
Summary: In this study, a combined model based on the optimality principle was used to estimate monthly evapotranspiration (E) values and its components in China from 1982 to 2018. The modeling results showed that the average annual E in China was 397.90 mm yr(-1), with major contributions from transpiration (Ec), soil evaporation (Es), and canopy interception evaporation (Ei). Precipitation, air temperature, and net radiation were identified as the primary drivers of E trends in different regions of China. The findings emphasize the importance of considering the divergent driving patterns of water, energy, and vegetation for water resource planning and management.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Environmental Sciences
Hang Zheng, Yueyi Liu, Wenhua Wan, Jianshi Zhao, Guanti Xie
Summary: Deep learning methods are increasingly used in water quality prediction due to their ability to map nonlinear relationships quickly. However, the lack of physical explanation limits their practicality. In this study, an interpretable deep learning framework was established to predict water quality variations. The model achieved satisfactory prediction performance, with coefficients of determination above 0.80 for COD, TP, and TN. The SHapley Additive exPlanations method was effective in interpreting the results and identifying important variables affecting water quality variations.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Civil
Yueyi Liu, Hang Zheng, Wenhua Wan, Jianshi Zhao
Summary: In order to reduce the energy consumption of the Eastern route of China's South-to-North Water Transfer Project, an optimized operational model was established to schedule the water-pumping process along the transfer route. The results show that the proposed operational rules can effectively reduce the water pumping and energy consumption of the project. Additionally, raising the water levels of southern lakes at the beginning of the year can further reduce the subsequent water pumping from the Yangtze River and the relative energy use of the project. Key areas for energy-saving along the eastern route were identified, providing new insights into the water-energy nexus behaviors of long-distance water transfer projects.
JOURNAL OF HYDROLOGY
(2023)
Article
Engineering, Civil
Junyu Wei, Xiangyu Luo, Haocheng Huang, Weihong Liao, Xiaohui Lei, Jianshi Zhao, Hao Wang
Summary: An ensemble-based simulation and data assimilation model is constructed to quantify and curb uncertainties in flood modeling, using Monte Carlo sampling and particle filter assimilation. Heterogeneous computing technologies based on CUDA and a distributed storage multi-GPU system are used for high-resolution real-time ensemble simulation. The results indicate that the particle filter method effectively constrains simulation uncertainty and provides confidence intervals of key hydrological elements.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Pengfei Han, Di Long, Fanyu Zhao, Louise J. Slater
Summary: Glaciers in High Mountain Asia (HMA) have been retreating due to global warming, leading to water scarcity for humans and ecosystems. This study developed a hybrid modeling approach to project glacier change and found that maritime glaciers have higher melting rates and negative net balances compared to continental glaciers. By the year 2100, both glaciers are projected to almost completely melt under the highest emission scenario. The projected year for the continental glacier to halve in volume (area) is about 5-11 (14) years later than that of the maritime glacier.
WATER RESOURCES RESEARCH
(2023)
Article
Multidisciplinary Sciences
Tong Cui, Yukun Li, Long Yang, Yi Nan, Kunbiao Li, Mahmut Tudaji, Hongchang Hu, Di Long, Muhammad Shahid, Ammara Mubeen, Zhihua He, Bin Yong, Hui Lu, Chao Li, Guangheng Ni, Chunhong Hu, Fuqiang Tian
Summary: This study found non-monotonic changes in river flows for seven major rivers originating from the Tibetan Plateau at warming levels of 1.5 degrees C, 2.0 degrees C, and 3.0 degrees C. River flows decreased by 0.1-3.2% at 1.5 degrees C warming level and increased by 1.5-12% at 3.0 degrees C warming level. The variations in river flows were influenced by rainfall, snowmelt, and glacier melt. Reduced river flows threaten water security in riparian countries, while elevated flood risks are expected with further temperature increases over the Tibetan Plateau.
NATURE COMMUNICATIONS
(2023)
Article
Computer Science, Interdisciplinary Applications
Holger R. Maier, Feifei Zheng, Hoshin Gupta, Junyi Chen, Juliane Mai, Dragan Savic, Ralf Loritz, Wenyan Wu, Danlu Guo, Andrew Bennett, Anthony Jakeman, Saman Razavi, Jianshi Zhao
Summary: Models are crucial in advancing our understanding of Earth's physical nature and environmental systems, but their accuracy and reliability depend heavily on data, which are often partitioned without justification. This study highlights the significance of meticulously considering data partitioning in the model development and evaluation process, and its impact on model generalization. Flaws in existing data-splitting approaches are identified, and a forward-looking strategy is proposed to address this issue, leading to improved model generalization capabilities.
ENVIRONMENTAL MODELLING & SOFTWARE
(2023)
Article
Engineering, Civil
Weisa Meng, Wenhua Wan, Zhongjing Wang, Jianshi Zhao
Summary: This paper presents an analytical basis for determining the forecast horizon (FH) in real-time reservoir operation. It incorporates both physical and economic determinants and derives criteria for FH determination. The effects of discount rate, inflow forecast variance, and reservoir storage capacity on FH are analyzed theoretically and numerically.
JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT
(2023)
Article
Engineering, Civil
Chee Hui Lai, Jianshi Zhao
Summary: In this paper, the authors analyze the water resource management institution of Australia's Murray-Darling Basin using institutional grammar and the institutional analysis and development framework's rule typology. The study finds that the basin's institutional structure emphasizes choice and information rules, with aggregation rules present in every context. However, the composition of rules differs across contexts, indicating a variation in institutional focus. The analysis of choice and aggregation rules also reveals the roles and interdependencies of basin actors. The findings contribute to a comprehensive understanding of interstate water institutions and aid in the development of systematic water institution analysis tools.
JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT
(2023)
Article
Environmental Sciences
Yiming Wang, Di Long, Xingdong Li
Summary: The Lancang-Mekong River is an important transboundary river in Southeast Asia. Monitoring changes in reservoir water storage and quantifying the impact of reservoir operation is crucial. This study used multisource remote sensing to generate weekly water levels and water storages of nine largest reservoirs on the main stem of the river. The results demonstrate the great potential of multisource remote sensing for high-temporal-resolution monitoring of reservoir water levels and water storage.
REMOTE SENSING OF ENVIRONMENT
(2023)
Article
Environmental Sciences
Wenhua Wan, Yueyi Liu, Hang Zheng, Jianshi Zhao, Fei Zhao, Yajing Lu
Summary: China's South-to-North Water Division Project has caused changes in the hydrological conditions and water storage of the Miyun Reservoir, affecting flood control in the Chaobai River Basin. This study developed a dual-objective five-reservoir operation model considering flood risks downstream and in the Miyun Reservoir area. An optimized set of operating rules was obtained using a parameterization-simulation-optimization approach, ensuring safe operation during expected floods. Compared to the current schemes, the optimized rules resulted in reduced losses and improved water transfer efficiency.
Review
Environmental Sciences
Bridget R. Scanlon, Sarah Fakhreddine, Ashraf Rateb, Inge de Graaf, Jay Famiglietti, Tom Gleeson, R. Quentin Grafton, Esteban Jobbagy, Seifu Kebede, Seshagiri Rao Kolusu, Leonard F. Konikow, Di Long, Mesfin Mekonnen, Hannes Mueller Schmied, Abhijit Mukherjee, Alan MacDonald, Robert C. Reedy, Mohammad Shamsudduha, Craig T. Simmons, Alex Sun, Richard G. Taylor, Karen G. Villholth, Charles J. Vorosmarty, Chunmiao Zheng
Summary: This review discusses the threats to water resources from human activities and climate variability, and explores ways to enhance resilience through green and grey solutions. The article evaluates the current and historical trends in water storage and availability, considering surface water and groundwater as interconnected resources. Diversifying management strategies, such as preserving forests and wetlands and increasing water supplies and storage, can help build a resilient water system.
NATURE REVIEWS EARTH & ENVIRONMENT
(2023)
Article
Geography, Physical
Xingdong Li, Di Long, Yanhong Cui, Tingxi Liu, Jing Lu, Mohamed A. Hamouda, Mohamed M. Mohamed
Summary: Lake ice is an important factor in regulating regional hydroclimate and lake ecosystems. Traditional methods of estimating water levels in ice-covered lakes using satellite altimetry are often affected by winter anomalies related to the thickening of lake ice. This study presents a novel method that combines altimetric waveforms and backscattering coefficients to estimate lake ice thickness without relying on in situ data. The method shows high accuracy and is effective at detecting thin ice that cannot be retrieved by altimetric waveforms. The study also improves the estimation of water levels for ice-covered lakes through the merging of lake water levels derived from different threshold methods.
Article
Water Resources
Yingjian Cao, Junyu Wei, Jianshi Zhao
Summary: This research focuses on the mechanisms and predictions of extreme wet events in mainland China. The drivers of extreme wet events are identified as the Atlantic Multidecadal Oscillation, Northern Hemisphere Average Temperature, and Pacific Decadal Oscillation. Increasing trends of extreme wet events are found in the Northeast, North China, Southeast China, and Western Northwest China regions, while the Eastern Northwest China region shows a decreasing trend.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2023)
