Article
Soil Science
Xianmin Ke, Peng Liu, Wei Wang, Jinlong Li, Fujun Niu, Zeyong Gao, Detao Kong
Summary: The spatial variability of vertical hydraulic conductivity (Kv) of lakebed sediments in the Qinghai-Tibet Plateau (QTP) was investigated in this study. The results showed that Kv values had moderate to strong spatial variabilities among different lakes. The grain size d50 had the strongest correlation with Kv, and the relationship between Kv and d50 was quadratic. This research provides valuable information for understanding the properties of lakebed sediments in thermokarst lake regions and can be used as parameters for numerical simulations.
Article
Engineering, Civil
Roseanna M. Neupauer, Greg Lackey, John Pitlick
Summary: Stream depletion caused by pumping in a connected aquifer can lead to exaggerated depletion under certain combinations of hydraulic parameters. Understanding the spatiotemporal variations in streambed conductance is crucial for predicting the impacts of pumping on stream flow.
JOURNAL OF HYDROLOGIC ENGINEERING
(2021)
Article
Geosciences, Multidisciplinary
Qiuyue Tang, Xiaoqian Duan, Ling He, Dalan Liao, Chongfa Cai, Yusong Deng
Summary: In this study, a developing Benggang in South China was selected to explore the spatial variability and driving factors of soil saturated hydraulic conductivity (Ks). The results showed that the properties of Benggang landforms varied with soil layer depth and slope position. Ks values exhibited notable multifractal characteristics and were affected by the number, area ratio, and mean volume of soil macropores.
Article
Water Resources
Kristen E. E. Cognac, Michael J. J. Ronayne
Summary: This study investigated the temporal and spatial variability of streambed fluxes over a 3-year period, and its implications for seepage recharge and hyporheic exchange. The study found that streambed fluxes had high variability and could be categorized into sub-daily, daily, and interannual scales. The daily variability was strongly correlated with the median annual flux at individual sites.
HYDROLOGICAL PROCESSES
(2023)
Article
Geosciences, Multidisciplinary
Sudipa Halder, Malabika Biswas Roy, Pankaj Kumar Roy, Majid Sedighi
Summary: Protecting groundwater from geogenic and anthropogenic pollutants is crucial for preserving hydro-aquatic ecosystems and ensuring water security. This study presents a new approach using Fuzzy Shannon Entropy (FSE) and a decision support algorithm to identify vulnerable zones. The model combines geological, hydrogeological, geochemical, and anthropogenic factors to assess aquifer vulnerability. The findings indicate a good correlation between the model and groundwater quality data, highlighting the need for effective planning and management to safeguard groundwater resources.
Article
Engineering, Civil
Rifeng Xia, Yue Liang, Tian-Chyi Jim Yeh, Xueya Dang, Xiaofan Gu, Bing Xu
Summary: The two-dimensional spatial distribution of the hydraulic diffusivity (D) of the Bayin River Basin was estimated through the relationship between river flow and groundwater. The study used limited available river stages data to conduct a wavelet analysis and a simple linear model to estimate the temporal and spatial variations of the river stage due to flood, and applied a river stage tomography (RST) to estimate the spatial distribution of the D values in the alluvial fan. The results show variations in D values across different areas of the alluvial fan.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Yuanwei Wang, Suheng Wang, Lei Wang, Xiaoyu Guo, Jing Zhou, Chenhao Chai, Jie Xu, Xiangfei Li, Mengtian Fan, Shengfeng Wang, Lin Zhao
Summary: Global warming leads to an increase in the frequency and intensity of hydrological wet extremes through accelerating inter-regional hydrological cycles. This study explores the spatial-temporal variability of wet extremes in the upper Brahmaputra basin using a hydrological model, and finds that extreme wet events are becoming more frequent and intense, influenced by precipitation and air temperature.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Multidisciplinary Sciences
Cangyu Li, Xinhui Wang, Mingzhou Qin
Summary: The study revealed that soil nutrients exhibit spatial variability at the watershed scale, influenced by factors such as soil structure and fertilization practices. Ignoring the spatial heterogeneity of soil nutrients when providing fertilization recommendations could lead to decreased crop production efficiency and exacerbated environmental pollution.
Article
Environmental Sciences
Meilin Zhou, Xiaolei Wang, Lin Sun, Yi Luo
Summary: This study explored the hydro-climatic and socio-ecological determinants affecting terrestrial water storage (TWS) variations in the Yellow River Basin in northern China. Precipitation, minimum temperature, runoff, base flow, water withdrawal, and NDVI were identified as the main drivers of TWS variations, with minimum temperature and runoff playing a significant role.
Article
Geosciences, Multidisciplinary
Peipei Xue, Zhang Wen, Eungyu Park, Hamza Jakada, Dejun Zhao, Xing Liang
Summary: This study evaluates the spatial variability of hydraulic conductivity (K) in the Han River watershed in the Jianghan Plain, China. The results show that the distribution of K varies across different regions, providing valuable data for further groundwater modeling and water resource evaluation.
HYDROGEOLOGY JOURNAL
(2022)
Article
Environmental Studies
Mulenga Kalumba, Edwin Nyirenda, Imasiku Nyambe, Stefaan Dondeyne, Jos Van Orshoven
Summary: In the context of decreasing water availability and increasing competition for water, it is crucial to focus on producing more crops. The collection of soil hydraulic properties data is essential for building efficient agricultural production systems, and alternate technologies like digital soil mapping should be explored.
Article
Engineering, Geological
Shih-Meng Hsu
Summary: This study presents a practical method for obtaining detailed hydraulic conductivity data along a borehole and develops quantification models for predicting the hydraulic conductivity using composite geological indices. The regression analysis results show a power law relationship between each composite geological index and the hydraulic conductivity, with a coefficient of determination ranging from 0.77 to 0.88.
ENGINEERING GEOLOGY
(2021)
Article
Ecology
Michael J. MacDonald, Lindsey K. Albertson, Geoffrey C. Poole
Summary: Hydropsychid larvae, as aquatic macroinvertebrate ecosystem engineers, alter streambed properties by creating silk nets and retreats. Recent research has shown that caddisfly silk binds stream sediments and alters streambed cohesion, potentially restricting hyporheic exchange and altering whole-stream biogeochemical processes.
Article
Multidisciplinary Sciences
Yaning Chen, Yapeng Chen, Chenggang Zhu, Yang Wang, Xingming Hao
Summary: This study analyzed the ecohydrological effects of artificial water conveyance in the lower reaches of the Tarim River over the past 20 years. The results showed an increase in groundwater table levels, expansion of surface water bodies, revival of Taitema Lake, expansion of natural vegetation area, and improvement in ecological parameters such as vegetation index.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Civil
Liqun Jiang, Ronglin Sun, Wei Xiao, Xing Liang, Tian-Chyi Jim Yeh
Summary: Hydraulic conductivity (K) and specific storage (Ss) are closely related to factors such as porosity, connectivity of pores, and sorting of grains. Laboratory and numerical experiments were conducted to investigate the correlation between spatially varying K and Ss values and their sensitivity to overlying material stresses. The experiments confirmed the reliability of the tools and approaches used for estimating detailed K and Ss fields. The results showed that Ss is highly sensitive to overburden stresses, while K is not, and there is no clear spatial correlation between K and Ss. The variability of Ss is critical in predicting groundwater flow behavior.
JOURNAL OF HYDROLOGY
(2022)
Article
Engineering, Civil
Shiqi Liu, Ping Wang, Jingjie Yu, Tianye Wang, Hongyan Cai, Qiwei Huang, Sergey P. Pozdniakov, Yichi Zhang, Ekaterina S. Kazak
Summary: The increasing winter streamflow of major Arctic rivers has been well documented. The study focused on four Arctic rivers with relatively few dam effects and analyzed their climate change-related responses in winter streamflow. The results showed that winter streamflow increased significantly from 1980 to 2019, with the highest increase observed in early winter. Late winter streamflow was particularly sensitive to air temperature changes, potentially due to permafrost degradation. The different change rates in winter streamflow among the four river basins were determined by permafrost degradation and related baseflow discharge processes.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Sergey P. Pozdniakov, Ping Wang, Sergey O. Grinevsky, Natalia L. Frolova
Summary: In this study, a physically based model with a two-pass digital filter is proposed for separating groundwater runoff from streamflow time series. By performing variogram analysis, the groundwater flow recession constant and the base flow recession constant can be determined. This method can be used to quantify groundwater runoff dynamics and reveal the effects of climate change on groundwater runoff.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
Peter Vasilevskiy, Ping Wang, Sergey Pozdniakov, Tianye Wang, Yichi Zhang, Xuejing Zhang, Jingjie Yu
Summary: Surface water-groundwater interactions in arid zones are complex and challenging to simulate due to scarce field observations and spatial heterogeneity of hydrogeological parameters. This study conducted simulations in the Ejina Basin using remote sensing data, showing that combining remote sensing products can effectively reduce uncertainty in coupled surface water and groundwater simulations where observations are sparse.
Article
Engineering, Civil
Shangyu Shi, Ping Wang, Jingjie Yu
Summary: The contribution of greening to evapotranspiration (ET) in Siberia has been revealed using the Penman-Monteith-Leuning (PML) model. Greening was found to be the major driver of ET variations, accounting for 37% of the variations. Surface net radiation (Rn) and wind speed (Um) also had significant effects on ET, contributing 33% and 19% to the variations, respectively.
JOURNAL OF HYDROLOGY
(2022)
Article
Agronomy
Hongwei Ruan, Jingjie Yu, Ping Wang, Lingang Hao, Zhenlong Wang
Summary: In order to address the challenges of arid transboundary river water management in Central Asian countries, this study conducted a comprehensive analysis of water supply and requirements in the Syr Darya Basin, and proposed a climate adaptation strategy. The research revealed the impact of reservoir regulation, crop structure, and climate change on water stress in the basin, and suggested the planting of a winter wheat rotation and low water consuming crops as an effective approach for coping with water scarcity and climate change in the region.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Environmental Sciences
Tcogto Zh. Bazarzhapov, Valentina G. Shiretorova, Larisa D. Radnaeva, Elena P. Nikitina, Bator V. Sodnomov, Bair Z. Tsydypov, Valentin S. Batomunkuev, Vasilii V. Taraskin, Suocheng Dong, Zehong Li, Ping Wang
Summary: Currently, climate change is a growing concern, particularly for Lake Baikal, a World Natural Heritage site. The Russian part of the Selenga watershed provides a suitable location for researching climate change. Understanding the changes in precipitation, runoff, and chemical runoff is crucial for managing water resources sustainably.
Article
Multidisciplinary Sciences
Xunming Wang, Quansheng Ge, Xin Geng, Zhaosheng Wang, Lei Gao, Brett A. Bryan, Shengqian Chen, Yanan Su, Diwen Cai, Jiansheng Ye, Jimin Sun, Huayu Lu, Huizheng Che, Hong Cheng, Hongyan Liu, Baoli Liu, Zhibao Dong, Shixiong Cao, Ting Hua, Siyu Chen, Fubao Sun, Geping Luo, Zhenting Wang, Shi Hu, Duanyang Xu, Mingxing Chen, Danfeng Li, Fa Liu, Xinliang Xu, Dongmei Han, Yang Zheng, Feiyan Xiao, Xiaobin Li, Ping Wang, Fahu Chen
Summary: Since the early 2000s, China has implemented grain-for-green and grazing exclusion practices in the desertification-prone region, but the impacts of these practices on the environment and socioeconomic factors are still unclear. This study quantifies and compares changes in vegetation cover with economic and population data before and after the implementation of environmental programs. The results reveal that climate change and CO2 fertilization play a significant role in vegetation rehabilitation, but the decline in farmers' and herders' incomes exceeds the government subsidies. To minimize economic hardships and enhance policy investments, China needs to adapt its environmental programs to address the potential impacts of climate change and create positive synergies.
NATURE COMMUNICATIONS
(2023)
Article
Environmental Sciences
Chuong Thanh Le, Duong Van Do, Duong Binh Nguyen, Ping Wang
Summary: In the last few decades, the coastlines of the Mekong Delta have experienced severe erosion, mainly due to strong waves during the Northeast Monsoon. Various types of breakwaters have been designed and built to mitigate erosion, with inclined and porous breakwaters being a focus of this study. Laboratory experiments showed that these breakwaters significantly reduce wave energy compared to inclined breakwaters, due to transmission, reflection, and diffraction. The study also explored the impact of porosity on sediment-laden seawater penetration and found that porous breakwaters promote sediment accumulation and facilitate the growth of mangrove belts.
Article
Water Resources
Lingang Hao, Ping Wang, Boris Gojenko, Jingjie Yu, Aifeng Lv, Fadong Li, Shavkat Kenjabaev, Rashid Kulmatov, Fazliddin Khikmatov
Summary: In this study, water chemistry data from the Amu Darya River (ADR) basin were collected for 50 years (1970-2019) to understand the patterns and mechanisms of river salinization. The results showed an increasing trend of salinity along the river course, with higher salinity downstream. Secondary salinization was identified as the main controlling process, and it has accelerated in recent years due to intensified agricultural activities.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2023)
Review
Agronomy
Tianye Wang, Zening Wu, Ping Wang, Tonghua Wu, Yichi Zhang, Jun Yin, Jingjie Yu, Huiliang Wang, Xinjian Guan, Hongshi Xu, Dengming Yan, Denghua Yan
Summary: Global dryland areas are expanding due to climate change, leading to increased drought occurrences. The water stress in these areas is projected to further increase, posing a threat to dryland ecosystem sustainability. Despite limited research progress, the interactions between plants and groundwater are receiving increasing attention.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Biodiversity Conservation
Zongxu Yu, Yichi Zhang, Ping Wang, Jingjie Yu, Tianye Wang, Shangyu Shi
Summary: The study analysed the long-term trends and nonlinear relationship between terrestrial water storage anomaly (TWSA) and normalized difference vegetation index (NDVI). It found that TWSA has a significant impact on NDVI changes, leading to vegetation browning and greening in different regions. These findings provide insights for understanding the relationship between vegetation and water resource management.
ECOLOGICAL INDICATORS
(2023)
Article
Environmental Sciences
Bing Bai, Qiwei Huang, Ping Wang, Shiqi Liu, Yichi Zhang, Tianye Wang, Sergey P. P. Pozdniakov, Natalia L. L. Frolova, Jingjie Yu
Summary: Climate warming globally affects the hydrological regime, amplifying evapotranspiration and precipitation. However, the response of small river basins to climate change is complex and not yet thoroughly understood.
Article
Environmental Sciences
Tcogto Zh. Bazarzhapov, Valentina G. Shiretorova, Larisa D. Radnaeva, Elena P. Nikitina, Selmeg V. Bazarsadueva, Galina S. Shirapova, Suocheng Dong, Zehong Li, Shiqi Liu, Ping Wang
Summary: This study investigated the heavy metal pollution in the Lake Gusinoe basin in Russia. The results showed low pollution levels overall, but moderate pollution in the central part of the lake. Fresh water scarcity and heavy metal pollution are important issues in global climate change.
Article
Environmental Sciences
Ping Wang, Qiwei Huang, Shiqi Liu, Yu Liu, Zehong Li, Sergey P. Pozdniakov, Tianye Wang, Ekaterina S. Kazak, Natalia L. Frolova, Olga I. Gabysheva, Jialing Zhang, Bing Bai, Jingjie Yu, Leilei Min, Raisa N. Shpakova, Lingang Hao, Viktor A. Gabyshev
Summary: Understanding the effects of climate warming on hydrogeochemical processes, especially in permafrost-dominated areas, is crucial. However, the natural background levels of chemical components in eastern Siberian rivers from permafrost-dominated regions and their responses to climate warming have not been adequately quantified. This study addresses this knowledge gap by analyzing a comprehensive river water chemistry database. The results reveal that the concentration of total dissolved solids (TDS) is approximately 2.3 times higher in river basins predominantly free of permafrost than in permafrost-dominated river basins in eastern Siberia. Additionally, the study finds that carbonate weathering, which plays a fundamental role in the global carbon cycle, is a predominant process controlling hydrogeochemical cycles and is sensitive to climate warming. The findings provide evidence that climate warming is already affecting freshwater quality and accelerating hydrogeochemical processes in permafrost-dominated Arctic basins.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Geosciences, Multidisciplinary
Shangyu Shi, Ping Wang, Xiaoyun Zhan, Jianqiao Han, Minghang Guo, Fei Wang
Summary: This study used an elastic net regression model to investigate the sensitivity of vegetation on the Qinghai-Tibet Plateau (QTP) to climate factors. The findings reveal that climate change is the main driver of vegetation changes on the QTP, with precipitation playing a more important role in vegetation growth.