scholarly journals Estimating Dynamics of Terminal Lakes in the Second Largest Endorheic River Basin of Northwestern China from 2000 to 2017 with Landsat Imagery

2019 ◽  
Vol 11 (10) ◽  
pp. 1164
Author(s):  
Bei Li ◽  
Yi-Chi Zhang ◽  
Ping Wang ◽  
Chao-Yang Du ◽  
Jing-Jie Yu
Keyword(s):  
River Basin ◽  
Water Consumption ◽  
Landsat Imagery ◽  
Water Diversion ◽  
Heihe River ◽  
Arid Environments ◽  
Lake Area ◽  
Landsat Images ◽  
East River ◽  
Terminal Lakes

Quantifying terminal-lake dynamics is crucial for understanding water-ecosystem-economy relationship across endorheic river basins in arid environments. In this study, the spatio-temporal variations in terminal lakes of the lower Heihe River Basin were investigated for the first time since the Ecological Water Diversion Project commenced in 2000. The lake area and corresponding water consumption were determined with 248 Landsat images. Vital recovery of lakes occurred two years after the implementation of the project, and the total lake area increased by 382.6%, from 30.7 to 148.2 km2, during 2002–2017. East Juyan Lake (EJL) was first restored as a project target and subsequently reached a maximum area of 70.1 km2. Water dispersion was initiated in 2003, with the East river prioritized for restoration. Swan Lake in the East river enlarged to 67.7 km2 by 2017, while the other four lakes temporarily existed or maintained an area < 7 km2, such as West Juyan Lake. Water consumed by lakes increased synchronously with lake area. The average water consumption of the six lakes was 1.03 × 108 m3/year, with 63% from EJL. The increasing terminal lakes; however, highlight the seasonal competition for water use between riparian vegetation and lake ecosystems in water-limited areas.

scholarly journals Evaluating Impacts of Industrial Transformation on Water Consumption in the Heihe River Basin of Northwest China

2014 ◽  
Vol 6 (11) ◽  
pp. 8283-8296 ◽  
Author(s):  
Feng Wu ◽  
Jinyan Zhan ◽  
Qian Zhang ◽  
Zhongxiao Sun ◽  
Zhan Wang
Keyword(s):  
River Basin ◽  
Water Consumption ◽  
Northwest China ◽  
Heihe River Basin ◽  
Heihe River ◽  
Industrial Transformation ◽  
The Heihe River Basin

scholarly journals Groundwater storage changes and estimation of stream lateral seepage to groundwater in desert riparian forest region

2017 ◽  
Vol 49 (3) ◽  
pp. 861-877 ◽  
Author(s):  
Haiyang Xi ◽  
Qi Feng ◽  
Lu Zhang ◽  
Jianhua Si ◽  
Tengfei Yu
Keyword(s):  
River Basin ◽  
Field Experiments ◽  
Riparian Forest ◽  
Groundwater Depth ◽  
Heihe River ◽  
Groundwater Storage ◽  
Inland River ◽  
East River ◽  
Forest Region ◽  
Water Conveyance

Abstract Field experiments were conducted in the lower reaches of the Heihe River basin in the northwest of China to determine relationships between stream and groundwater and to quantify stream lateral seepage. The water table fluctuation, water balance and statistical analysis methods were used to analyze long-term experimental data. Results showed that the groundwater depth along the experimental section responded strongly to the streamflow of the East River in the basin. The streamflow of the East River in all periods significantly influenced the amplitude of groundwater depth within the range of 300 m from the riverbank; the stream lateral seepage was mainly controlled by the streamflow and its durations. The evapotranspiration of riparian forest had used larger proportions of groundwater storage in summer, close to approximating 60%. This study quantified stream lateral seepage to groundwater for different water conveyance and provides support for regional water resources management in an arid inland river basin.

scholarly journals Integrated study of the water–ecosystem–economy in the Heihe River Basin

2014 ◽  
Vol 1 (3) ◽  
pp. 413-428 ◽  
Author(s):  
Guodong Cheng ◽  
Xin Li ◽  
Wenzhi Zhao ◽  
Zhongmin Xu ◽  
Qi Feng ◽  
...  
Keyword(s):  
River Basin ◽  
Management Practices ◽  
River Basins ◽  
River Basin Management ◽  
Heihe River Basin ◽  
Water Diversion ◽  
Heihe River ◽  
Inland River ◽  
Water Ecosystem ◽  
The Heihe River Basin

AbstractThe ecological water diversion project in the Heihe River Basin is the first successful case in China in which the ecological systems in a river basin have been rescued. This project serves as a valuable example for the management of ecosystems in other inland river basins. This paper reviews the integrated studies of the water–ecosystem–economy relationship in the Heihe River Basin and concludes that sustainable development in inland river basins requires the basin to be considered as a whole, with the relationships between the upstream, midstream and downstream areas of the basin coordinated appropriately. Successful development in these basins will be reflected in an improved output per cubic meter of water and the implementation of integrated river basin management practices.

scholarly journals Analysis of Socio-Hydrological Evolution Processes Based on a Modeling Approach in the Upper Reaches of the Han River in China

Water ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 2458
Author(s):  
Xiaoyu Zhao ◽  
Dengfeng Liu ◽  
Xiu Wei ◽  
Lan Ma ◽  
Mu Lin ◽  
...  
Keyword(s):  
Economic Development ◽  
Environmental Protection ◽  
River Basin ◽  
Water Consumption ◽  
Water Diversion ◽  
Model Parameters ◽  
Han River ◽  
Development Scenarios ◽  
Water Diversion Project ◽  
Industrial Adjustment

The Han River is the water source of the South-to-North Water Diversion Project and the “Han River to Wei River Water Diversion Project” in China. In order to ensure that the water quality and quantity are sufficient for the water diversion project, the natural forest protection project, river chief system and other measures have been implemented in the Han River by the government. At the same time, several large reservoirs have been built in the Han River basin and perform the functions of water supply and hydropower generation, which is an important type of clean power. Under the influence of human activities, the coupling interaction between humans and water in the upper reach of the Han River drives the socio-hydrological evolution process. In this study, from the perspective of socio-hydrology, a model of socio-hydrological evolution (SHE) in the Han River in southern Shaanxi was built to simulate the potential evolution path of the socio-hydrological system and determine possible measures for the sustainable governance of the river basin. By adjusting the model parameters, four future scenarios were established: natural continuation, economic development, environmental protection and industrial adjustment scenarios. Taking 2018 as the base year, the evolution of socio-hydrology in the upper reaches of the Han River was predicted under the four scenarios from 2019 to 2045. The simulation results show that: (1) In the entire study area, except for domestic water, the water consumption of other departments show an upward or stable trend. There are differences in water consumption changes in the upper and lower sections, which are related to the different socio-economic conditions. (2) Comparing different development scenarios, the industrial adjustment and environmental protection scenarios are superior to the other scenarios. Natural continuation and economic development scenarios appear to be unfavorable for the sustainability of water resources and the economy. (3) In addition, based on the development scenarios, some policy suggestions are put forward, such as reducing the irrigation water quota, appropriately adjusting the industrial structure and promoting the growth of the urban population and the development of urbanization.

scholarly journals Evolution of Vegetation System in Heihe River Basin in the last 2000 years

2017 ◽  
Author(s):  
Shoubo Li ◽  
Yan Zhao ◽  
Yongping Wei ◽  
Hang Zeng
Keyword(s):  
River Basin ◽  
Rapid Development ◽  
Social Economy ◽  
River Basin Management ◽  
Development Stage ◽  
Heihe River Basin ◽  
Heihe River ◽  
Landsat Images ◽  
Past 2000 Years

Abstract. The response of vegetation system to the long-term changes in climate, hydrology, and social-economy in a river basin is critical for sustainable river basin management. This study aims to investigate the evolution of natural and crop vegetation systems in Heihe River Basin (HRB) over the past 2000 years. Archived Landsat images were applied to derive vegetation spatial extent and biomass for 1987 to 2015. The area and biomass of the vegetation before 1987 were reconstructed based on previous research results the derived relationship between the vegetation biomass and climatic and hydrological variables in the last 30 years with instrumental data. The key findings are: 1) both natural and crop vegetation have gone three development stages: Pre-development stage (before 1949), rapid development stage (1949–2000), and post-development stage (after 2000); 2) there was a much faster increase of crop biomass than that of native vegetation since 1949, and 3) the ratio of natural vegetation to crop vegetation decreased from 16 at Yuan Dynasty to at about 2.2 since 2005. This ratio represents the land and water development at river basin at changing climate and social-economy, it could be used as an indicator to plan the objective or examine the outcome of water and land management at river basin.

scholarly journals Downstream ecosystem responses to middle reach regulation of river discharge in the Heihe River Basin, China

2016 ◽  
Author(s):  
Y. Zhao ◽  
Y. P. Wei ◽  
S. B. Li ◽  
B. F. Wu
Keyword(s):  
River Discharge ◽  
Agricultural Development ◽  
River Regulation ◽  
Water Diversion ◽  
Heihe River ◽  
Catchment Management ◽  
Linear Regression Models ◽  
Landsat Images ◽  
Ecosystem Responses ◽  
Temperature And Precipitation

Abstract. Understanding the oasis ecosystem responses to upstream regulation is a challenge for catchment management for ecological restoration. This empirical study aimed to understand how oasis ecosystems including water, natural vegetation and cultivated land responded to the implementation of the Ecological Water Diversion Project (EWDP) in the Heihe River in China. The annual Landsat images from 1987 to 2015 were firstly used to characterize the spatial extent, frequency index and fractional coverage (for vegetation only) of these three oasis ecosystems and their relationships with hydrological (river discharge) and climatic variables (regional temperature and precipitation) were explored with linear regression models. The results show that river regulation of the middle reaches identified by the discharge allocation to the downstream basin experiences three stages, namely decreasing inflow (1987–1999), increasing inflow (2000–2007) and relative stable inflow (2008–2015). Both the current and previous years' combined inflow determines the surface area of the terminal lake (R2 = 0.841). Temperature has the most significant role in determining broad vegetation distribution, whereas hydrological variables had a significant effect only in near-river-channel regions. Agricultural development since the execution of the EWDP might have curtailed further vegetation recovery. These findings are important for the catchment managers' decisions about future water allocation plans.

Sign in / Sign up

Export Citation Format

Share Document