Article
Geosciences, Multidisciplinary
Hao Li, Baoying Shan, Liu Liu, Lei Wang, Akash Koppa, Feng Zhong, Dongfeng Li, Xuanxuan Wang, Wenfeng Liu, Xiuping Li, Zongxue Xu
Summary: The study found significant changes in water yield in the Upper Brahmaputra River basin during 1982-2013, mainly influenced by climate and cryosphere, with minimal impact from vegetation. Decreased precipitation in recent years has led to a decrease in water yield, but meltwater may alleviate water shortages.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2022)
Article
Environmental Sciences
Rong Gan, Mengsha Xu, Feng Yang, Qiting Zuo, Xinyu Zhang
Summary: This study investigated the suitability of baseflow separation methods and characteristics in the Yiluo River basin. The Chapman digital filter (F2) method was found to be the most stable and reliable for baseflow separation in the basin. The trend of baseflow is consistent with streamflow but opposite to the baseflow index (BFI). Some stations showed significant increasing or decreasing trends in annual baseflow. The study provides theoretical support for runoff and groundwater management in the basin.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Environmental Sciences
Shixuan Lyu, Chunling Guo, Yuyu Zhai, Mengdong Huang, Guotao Zhang, Yongqiang Zhang, Lei Cheng, Qiang Liu, Yuyan Zhou, Ross Woods, Junlong Zhang
Summary: This study investigates the characteristics of baseflow in the Yellow River Basin (YRB) using four revised baseflow separation algorithms. Thirteen baseflow dynamics signatures were extracted to analyze the spatiotemporal variations and determinants of baseflow in the YRB. The results show significant spatial distribution patterns of baseflow characteristics, with higher values in upstream and downstream areas and lower values in middle reaches. The temporal variation of baseflow signatures is strongly correlated with catchment terrain, vegetation growth, and cropland coverage. Multiple factors have a synergistic effect on baseflow signature values. This study provides important insights for water resources management in the YRB and similar catchments.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
M. C. A. Torbenson, J. H. Stagge
Summary: This study compares three different approaches for reconstructing flow, showing that baseflow separation can improve the accuracy of reconstruction. The relationship between tree growth and baseflow is stronger than that with streamflow, supporting the feasibility of using baseflow as the predictor variable.
WATER RESOURCES RESEARCH
(2021)
Article
Environmental Sciences
Wondmyibza Tsegaye Bayou, Stefan Wohnlich, Mebruk Mohammed, Tenalem Ayenew
Summary: This research aims to estimate baseflow in the Sor and Gebba watershed using various hydrograph analysis techniques. The analysis showed that automated filtering techniques tend to overestimate baseflow compared to manual techniques, with below-average contribution from the underground storage aquifer to streamflow. The Baseflow Index values are proportional for both streams in the watershed, estimated at around 33%.
Article
Environmental Sciences
Yuehui Wang, Fengzhi Shi, Peng Yao, Yu Sheng, Chengyi Zhao
Summary: This study uses principal component analysis and random forest model to investigate the resilience and its driving factors in the Hotan River Basin. The findings show that the overall resilience is low, with human activities negatively impacting it. Rivers are more likely to reach maximum resilience after experiencing wet and dry conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiaxin Li, Kaixuan Qian, Yuan Liu, Wei Yan, Xiuyun Yang, Geping Luo, Xiaofei Ma
Summary: Observation data of inland river runoff in arid regions have limitations in time series and attributes, which restrict accurate simulation and management. The improved Long-Short Term Memory (LSTM) model in this study showed better prediction effect and accuracy in hydrological simulation in arid regions.
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
Green & Sustainable Science & Technology
Peng Yang, Yanchao Zhu, Xiaoyan Zhai, Jun Xia, Yaning Chen, Heqing Huang, Zhi Li, Xiaorui Shi, Libo Zhou, Cai Fu
Summary: Due to changing environments, the conflict between water supply and demand in arid northwest China is becoming increasingly prominent, resulting in the water security challenges and the need for risk management. Therefore, this study aimed at developing an adaptive management approach for the compound systems of water ecology and socioeconomics in the Aksu River Basin (ARB), a typical northwest arid watershed in China. The findings showed that an adjusted three red lines policy should be utilized to ensure adaptive management of risk in the water resource system, resulting in decreased vulnerability and risk, and increased resilience of the water resource system.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Yifeng Hou, Yaning Chen, Zhi Li, Yupeng Li, Fan Sun, Shuai Zhang, Chuan Wang, Meiqing Feng
Summary: The Tarim River Basin, the largest inland river basin in China, is facing increasing competition for urban land use due to rapid population growth and rising land demand. This study uses multiple models to simulate and validate land use/cover change in the basin, and predicts the future land use patterns.
Article
Environmental Sciences
Huiying Ma, Guofeng Zhu, Yu Zhang, Liyuan Sang, Qiaozhuo Wan, Zhiyuan Zhang, Yuanxiao Xu, Dongdong Qiu
Summary: This study analyzed the water chemistry and behavior of main elements in the Shiyang River Basin through hydrochemical diagrams and multivariate statistical analysis. The spatial variation of water chemistry was evident, with ions migrating from mountain areas to oasis and desert before accumulating near terminal lakes. Different hydrochemical types were observed between surface water and groundwater, indicating different controls such as silicate weathering. Agricultural activities and sewage discharge had a negative impact on water quality, and interbasin water transfer affected the chemical characteristics of surface water downstream.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Becky L. Brice, Bethany L. Coulthard, Inga K. Homfeld, Laura A. Dye, Kevin J. Anchukaitis
Summary: Recent intensification of floods and droughts in the Fraser River Basin of British Columbia has had significant impacts that are expected to worsen due to human-induced climate change. The study used tree-ring proxy records to develop subbasin-scale flood and drought season reconstructions, revealing that past high flood-season flows were more severe than recorded, and early 20th-century low flows during the drought season were especially severe. These reconstructions provide long-term benchmarks for natural flood and drought variability prior to human influence, suggesting that current management based on instrumental records may underestimate the full natural magnitude and frequency of extreme seasonal flows in the FRB.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Biochemistry & Molecular Biology
Yin Wang, Jianming Wang, Yicheng He, Mengjun Qu, Weilin Zhu, Yujie Xue, Jingwen Li
Summary: The associations between plant and fungal communities play a crucial role in regulating soil multifunctionality. The complexity of the plant-fungus network has a stronger effect on soil multifunctionality in surface soil compared to subsurface soil.
Article
Engineering, Civil
Yuna Shi, Jinxi Song, Junlong Zhang, Peng Huang, Haotian Sun, Qiong Wu, Lei Cheng, Jiaxiong Zhang, Lutong Xing, Shixuan Lyu, Yuyu Zhai
Summary: This study analyzed the responses of streamflow and baseflow in the Bahe River to climate change and human activities. The results showed a declining trend in hydrometeorological variables in the river basin. Precipitation had a stronger correlation with streamflow compared to baseflow. Human activities mainly affected upstream streamflow, while climate change had a greater impact on midstream baseflow. These findings contribute to our understanding of the response mechanisms of the hydrological cycle in a changing environment.
JOURNAL OF HYDROLOGY
(2023)
Article
Agronomy
Min Xu, Hao Wu, Shichang Kang, Xiaoping Chen, Yuanning Wang
Summary: Glacial and snow meltwater from high mountains are crucial for regulating river discharge and irrigating croplands in arid regions. This study used the VIC-glacier hydrological model combined with the CROPR model to examine the significance of meltwater for irrigation and cotton yield in the Yarkant River basin of Northwest China. The findings revealed an increasing trend in annual meltwater over the period 1960-2017. The warm-dry to warm-wet climate in recent decades has contributed to the rise in total discharge and meltwater, while decreasing total irrigation, irrigation from meltwater, and the contribution of meltwater to cotton yield. Precipitation had a greater impact on irrigation and cotton production from meltwater compared to temperature. Increasing precipitation reduced the influence of meltwater on irrigation and cotton production. This study provides valuable insights for managing cryospheric water resources and addressing water scarcity risks in arid regions of Northwest China.
IRRIGATION SCIENCE
(2023)
Article
Environmental Sciences
Yanbing Zhu, Baofu Li, Lishu Lian, Tianxiao Wu, Junshan Wang, Fangshu Dong, Yunqian Wang
Summary: This study quantifies drought changes in the Yihe River Basin in eastern China from 1980 to 2019 and assesses the impacts of climate factors, land-use/cover changes, and other human activities using the SWAT model and PDSI index. The results show that climate fluctuation is the main driver of drought change, with temperature becoming the most important climate factor affecting drought.
Article
Environmental Sciences
Tianxiao Wu, Baofu Li, Lishu Lian, Yanbing Zhu, Yanfeng Chen
Summary: This study analyzed the spatiotemporal variation characteristics of summer drought and high-temperature heat waves in the North China Plain from 2000 to 2018. It found that the severity of summer drought increased, especially in Henan, Anhui, and Jiangsu Provinces, and the frequency and intensity of high-temperature heat waves also increased. The combined-events risk of drought and high-temperature heat waves did not significantly increase, with varying changes in different regions.
Article
Environmental Sciences
Chuanxiu Liu, Yaning Chen, Gonghuan Fang, Honghua Zhou, Wenjing Huang, Yongchang Liu, Xuanxuan Wang, Zhi Li
Summary: Hydrological connectivity has a significant impact on water environment and wetland ecological security, but the mechanism between hydrological connectivity and water quality is not fully understood. This study used a landscape connectivity approach to assess the connectivity of water patches in the Bosten Lake Basin and analyzed its response to human activities and climate change. The results showed a strong correlation between hydrological connectivity and water area, water level, and improved water quality.
Article
Environmental Sciences
Qifei Zhang, Yaning Chen, Zhi Li, Gonghuan Fang, Yanyun Xiang, Yupeng Li
Summary: The number and area of alpine lakes in Tien Shan are rapidly growing, mainly due to a warming climate and retreating glaciers. Glacial lakes continuously increased in size, while non-glacial lakes expanded intermittently. Proglacial lakes and extraglacial lakes showed the highest expansion rates among the four types of alpine lakes.
Editorial Material
Multidisciplinary Sciences
Yupeng Li, Fan Sun, Yaning Chen, Baofu Li, Gonghuan Fang, Weili Duan, Qianqian Xia
Article
Meteorology & Atmospheric Sciences
Xueqi Zhang, Yaning Chen, Qianqian Xia, Gonghuan Fang, Zhenhua Xia, Yupeng Li
Summary: This paper investigates the performance of the bias-corrected FGOALS-g3 model in detecting changes in extreme precipitation in the Tian Shan Mountains, Central Asia. The study finds that the FGOALS-g3 products can detect the spatial pattern of multi-year average precipitation in the region, but there is an overestimation in magnitude, which is reduced after bias correction. The corrected FGOALS-g3 products reproduce the spatial distribution and reasonably simulate the magnitudes of extreme precipitation. Overall, extreme precipitation has increased during the historical period, and it is projected to continue increasing under different scenarios.
ATMOSPHERIC RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Xuanxuan Wang, Yaning Chen, Gonghuan Fang, Zhi Li, Yongchang Liu
Summary: Central Asia is facing a severe water crisis that is limiting the achievement of sustainable development goals in the region. This study provides a multi-perspective analysis of the water crisis, considering factors such as water stress, safe drinking water access, water pollution, climate change, population growth, poverty, urbanization, and transboundary river management. The results indicate that the water crisis is intensifying in Central Asia, with Uzbekistan and Turkmenistan being classified as severely water stressed countries. Human activities have a significant impact on the water crisis, especially factors such as cultivated land area and population. The research emphasizes the importance of sustainable water resource management and highlights the need for effective action to address the worsening water security situation in Central Asia.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Geography, Physical
Qifei Zhang, Yaning Chen, Zhi Li, Gonghuan Fang, Yanyun Xiang, Huiping Ji
Summary: Monitoring alpine lakes in the Tianshan Mountains is crucial for understanding the impact of global warming. This study analyzed the changes in alpine lakes and found that glacial lakes expansion is the main driving force, influenced by climate change and glacier recession.
JOURNAL OF GEOGRAPHICAL SCIENCES
(2023)
Article
Environmental Sciences
Gonghuan Fang, Zhi Li, Jing Yang, Yaning Chen, Weili Duan, Charles Amory, Yunqian Wang
Summary: This study examines the long-term changes in flood characteristics in the alpine headwaters of the Tarim River Basin in Central Asia. The results show an increase in flood frequency and magnitude, as well as earlier flood peaks. Precipitation and temperature are identified as the main driving factors.
JOURNAL OF FLOOD RISK MANAGEMENT
(2023)
Article
Multidisciplinary Sciences
Gonghuan Fang, Jing Yang, Zhi Li, Yaning Chen, Weili Duan, Charles Amory, Philippe De Maeyer
Summary: This paper studies the shifting in flood timing globally from 1970 to 2010 and investigates its relationship with influential factors. The study finds a clear global pattern in the mean flooding date and a trend of shift in flood timing. It also reveals that earlier snowmelt causes earlier floods in North America and Europe, while extreme soil moisture excess and precipitation delay floods in monsoon zones like South Africa, India, and Japan.
SCIENTIFIC REPORTS
(2022)
Article
Forestry
Kexiang Liu, Tongwen Zhang, Huaming Shang, Yuting Fan, Shulong Yu, Shengxia Jiang, Weiyi Mao, Xinchun Liu
Summary: Bosten Lake Basin is crucial for both drinking water supply and ecological balance in the region. However, the water level fluctuations caused by climate change and human activities have significant impacts on the ecosystem. Therefore, studying the historical water flow changes has become a research focus.
Article
Environmental Sciences
Serik Nurakynov, Azamat Kaldybayev, Kanat Zulpykharov, Nurmakhambet Sydyk, Aibek Merekeyev, Daniker Chepashev, Aiman Nyssanbayeva, Gulnura Issanova, Gonghuan Fang
Summary: An updated glacier inventory of the Zhetysu Alatau Range in Tien Shan shows that the glaciers have decreased in area from 813.6 km(2) to 414.6 km(2) from 1956 to 2016, while the number of glaciers has increased from 985 to 813. The fastest shrinkage rate was observed during the period of 2001-2016, with a rate of approximately -1.3% per year.
Review
Forestry
Tongwen Zhang, Jinghui Song, Yuting Fan, Yan Liu, Shulong Yu, Dong Guo, Tianhao Hou, Kailong Guo
Summary: This paper compiles and analyzes the literature on vegetation index research based on tree-ring information in the past 20 years. It provides an overview of the relationship between tree-ring parameters and NDVI, as well as NDVI reconstruction. The research shows a strong correlation between tree-ring parameters and NDVI in summer. In addition, combining tree rings with NDVI is useful for assessing forest decline, quantifying the forest response to drought, and monitoring forest productivity. Future research should consider multiple environmental factors and conduct large-scale studies on the climate response of forest tree growth and the reconstruction of historical vegetation index sequences.
Article
Environmental Sciences
Tao Pan, Baofu Li, Letian Ning
Summary: The expansion of impervious surface area in megacities of China has impacts on land surface temperature, affecting living environments and thermal comfort levels. However, there is a lack of research on the synchronous comparison of land surface temperature responses to impervious surface area changes in the central coastal megalopolises of China. To address this, a collaborative methodology was established for Qingdao using land use data and remote sensing images. The results show a synchronous increase in impervious surface area in both urban and rural areas, with higher changes found in urban regions. The study reveals the mechanism effect of impervious surface area changes on land surface temperature in urban and rural regions.
Article
Environmental Sciences
Gonghuan Fang, Zhi Li, Yaning Chen, Wenting Liang, Xueqi Zhang, Qifei Zhang
Summary: This paper investigates the future runoffs of the headwaters of the Tarim River Basin and finds that temperatures are projected to increase and precipitation is expected to increase, especially in the summer. This will pose challenges in flood risk management.
