scholarly journals Scenario Analysis for Water Resources in Response to Land Use Change in the Middle and Upper Reaches of the Heihe River Basin

2015 ◽  
Vol 7 (3) ◽  
pp. 3086-3108 ◽  
Author(s):  
Zhihui Li ◽  
Xiangzheng Deng ◽  
Feng Wu ◽  
Shaikh Hasan
Keyword(s):  
Land Use ◽  
Water Resources ◽  
Land Use Change ◽  
River Basin ◽  
Scenario Analysis ◽  
Heihe River Basin ◽  
Heihe River ◽  
The Heihe River Basin

scholarly journals Optimal Water Resources Allocation under the Constraint of Land Use in the Heihe River Basin of China

2015 ◽  
Vol 7 (2) ◽  
pp. 1558-1575 ◽  
Author(s):  
Zhanqi Wang ◽  
Jun Yang ◽  
Xiangzheng Deng ◽  
Xi Lan
Keyword(s):  
Land Use ◽  
Water Resources ◽  
River Basin ◽  
Heihe River Basin ◽  
Resources Allocation ◽  
Heihe River ◽  
Water Resources Allocation ◽  
The Heihe River Basin

scholarly journals Spatial Pattern Analysis of a Water-Related Ecosystem Service and Evaluation of the Grassland-Carrying Capacity of the Heihe River Basin under Land Use Change

Water ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 2658
Author(s):  
Rui Luo ◽  
Shiliang Yang ◽  
Yang Zhou ◽  
Pengqun Gao ◽  
Tianming Zhang
Keyword(s):  
Land Use ◽  
Ecosystem Services ◽  
Land Use Change ◽  
River Basin ◽  
Carrying Capacity ◽  
Animal Husbandry ◽  
Heihe River Basin ◽  
Heihe River ◽  
The Impact ◽  
The Heihe River Basin

A key challenge to the sustainability and security of grassland capacity is the protection of water-related ecosystem services (WESs). With the change of land use, the supply of aquatic ecosystem services has changed, and the grassland-carrying capacity has been affected. However, the correlation mechanism between WESs and the grassland-carrying capacity is not clear. In this study, we used the InVEST(Integrated Valuation of Ecosystem Services and Tradeoffs) model to evaluate the impact of land-use change on WESs, and made a tradeoff analysis between WESs and grassland-carrying capacity. Considering that the Heihe River Basin (HRB) was an important grassland vegetation zone, which was a milestone for the development of animal husbandry in China, HRB was taken as a case. The main findings are as follows: (1) the spatial distribution of WESs shows the dissimilation rule, the upper reaches are the main water yield area, the soil retention is weakening in the middle and lower reaches, and the pollution has further increased in the middle and upper reaches. (2) The carrying capacity of animal husbandry decreased in the upper reaches, increased in Shandan County and Zhangye City in the middle reaches, and decreased sharply in other regions. (3) There was a positive correlation between the livestock-carrying capacity and nitrogen export in 2018, which was increasing. As the change of land use has changed the evapotranspiration structure, WESs have undergone irreversible changes. Meanwhile, the development of large-scale irrigated farmland and human activities would be the source of a further intensification of regional soil erosion and water pollution. Therefore, it is necessary to trade off the WESs and animal husbandry under land-use change. This paper revealed how WESs changed from 2000 to 2018, the characteristics of the changes in the spatial and temporal distribution, and the carrying capacity. It aims to provide a scientific basis for coordinating the contradiction between grassland and livestock resources, improving the regional ecological security situation, and carrying out ecosystem management.

scholarly journals Scenario-Based Analysis of Land Use Competition and Sustainable Land Development in Zhangye of the Heihe River Basin, China

2021 ◽  
Vol 18 (19) ◽  
pp. 10501
Author(s):  
Yuping Bai ◽  
Zhe Zhao ◽  
Chuyao Weng ◽  
Wenxuan Wang ◽  
Yecui Hu
Keyword(s):  
Economic Growth ◽  
Land Use ◽  
Land Use Change ◽  
River Basin ◽  
Value Added ◽  
Heihe River Basin ◽  
Heihe River ◽  
Cultivated Land ◽  
Development Scenarios ◽  
The Heihe River Basin

Rapid economic growth has a significant impact on land use change, which would threaten the natural ecology. Zhangye city of the Heihe River Basin, China is an ecologically vulnerable region where land use changes significantly due to socioeconomic development and population increases. The study employed a computable general equilibrium of land use change (CGELUC) model to simulate land use change and then used a dynamic land system (DLS) model to spatialize land use change during 2015–2030 under three development scenarios in Zhangye city. The three development scenarios are the baseline scenario (BAU), the resource consumption scenario (RCS) and the green development scenario (GDS). We found that economic growth would lead to land demand increases in high value-added industries and decreases in low value-added industries. The cultivated land would decrease while the built-up area would increase. By 2030, the cultivated land will decrease by 8.16%, 10.89% and 4.16%, respectively, under BAU, RCS and GDS, while the built-up area will increase by 8.61%, 10.39% and 4.75%, respectively. The expansion of built-up area under RCS presents spatial characteristics of centralized distribution, while spatial characteristics of uniform discrete distributions are presented under GDS. The expansion of ecological land under GDS would be considerable, especially in the north of Sunan County and Gaotai County, and around the natural reserve of Ganzhou County. This paper provides a scientific reference for coordinating economic development and ecological protection in the rapidly developing urbanized areas in western China.

IMPACT OF FUTURE CLIMATE CHANGE (2020–2059) ON THE HYDROLOGICAL REGIME IN THE HEIHE RIVER BASIN IN SHAANXI PROVINCE, CHINA

2019 ◽  
Vol 01 (01) ◽  
pp. 1950003 ◽  
Author(s):  
AIDI HUO ◽  
XIAOFAN WANG ◽  
YUXIANG CHENG ◽  
CHUNLI ZHENG ◽  
CHENG JIANG
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Hydrological Regime ◽  
Annual Runoff ◽  
Heihe River Basin ◽  
Shaanxi Province ◽  
Future Climate Change ◽  
Heihe River ◽  
The Heihe River Basin

Assessing the impacts of climate change on hydrological regime and associated social and economic activities (such as farming) is important for water resources management in any river basin. In this study, we used the popular Soil and Water Assessment Tool (SWAT) to evaluate the impacts of future climate change on the availability of water resources in the Heihe River basin located within Shaanxi Province, China, in terms of runoff and streamflow. The results show that over the next 40 years (starting in 2020 till 2059), changes in the averaged annual runoff ratio are approximately [Formula: see text]11.0%, [Formula: see text]6.4%, 7.2%, and 20.4% for each of the next four consecutive decades as compared to the baseline period (2010–2019). The predicted annual runoff demonstrates an increase trend after a reduction and may result in increased drought and flood risk in the Heihe River basin. To minimize or mitigate these impacts, various adaptation methods have been proposed for the study area, such as stopping irrigation, flood control operation; reasonable development and utilization of regional underground water sources should be implemented in Zhouzhi county and Huyi region in the lower reaches of Heihe River basin.

Impacts of land use changes on groundwater resources in the Heihe River Basin

2005 ◽  
Vol 15 (4) ◽  
pp. 405-414 ◽  
Author(s):  
Wang Genxu ◽  
Yang Lingyuan ◽  
Chen Lin ◽  
Jumpei Kubota
Keyword(s):  
Land Use ◽  
River Basin ◽  
Groundwater Resources ◽  
Land Use Changes ◽  
Heihe River Basin ◽  
Heihe River ◽  
The Heihe River Basin

Land use history and status of land desertification in the Heihe River basin

2009 ◽  
Vol 53 (2) ◽  
pp. 273-290 ◽  
Author(s):  
Liu Wei ◽  
Cao Shengkui ◽  
Xi Haiyang ◽  
Feng Qi
Keyword(s):  
Land Use ◽  
River Basin ◽  
Heihe River Basin ◽  
Heihe River ◽  
Land Use History ◽  
Land Desertification ◽  
The Heihe River Basin
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