Post-Evaluation of the Ecological and Environmental Impact of Water Diversion Project in the Low Reaches of Heihe River

2012 ◽  
Vol 518-523 ◽  
pp. 1188-1191
Author(s):  
Gui Zhi Wang ◽  
De Shan Tang
Keyword(s):  
Environmental Impact ◽  
Local Environment ◽  
Water Diversion ◽  
Ecological Effect ◽  
Heihe River ◽  
Post Evaluation ◽  
Water Diversion Project ◽  
Ecology And Environment ◽  
Oasis Area ◽  
The Impact

Since 2001, Heihe River began to carry out the project of water transforming, which caused certain effect in the ecology and environment of the whole basin. Analyzing the change of climate, the ground water, the typical plant growth and the oasis area in nearly 10 years, master the impact of water diversion to the downstream ecology and environment. It shows that the implement of the project of water transforming has decreased the desertification area, expanded the oasis area and kept down the trend of decline of a water table, the populus diversifolia and other vegetation began to recover and grow. The water diversion of Heihe River acquired preferably ecological effect; the local environment has made great improvement.

On the Impact of Timber Consumption on Environment due to Wooden Architecture Construction in the Tang Dynasty in Chang’an

2012 ◽  
Vol 599 ◽  
pp. 898-901
Author(s):  
Tian Hang Wang
Keyword(s):  
Environmental Impact ◽  
Tang Dynasty ◽  
Local Environment ◽  
Scientific Data ◽  
Common Belief ◽  
The Past ◽  
Time Period ◽  
The Tang Dynasty ◽  
The Impact

As is known, there is great impact on the local eco-system and environment caused by timber consumptions. It is yet important to validate this common belief by scientific data. Considering there is generally a lag on the environmental impact, it is intuitive for us to study the influence based on historical facts in the past. Thus, this paper focuses on the time period of the Tang dynasty in Chang’an, which was famous for being the “Eastern Rome” to investigate the impact of timber consumption on the local environment due to wooden architecture constructions.

scholarly journals Impact Assessment of Eastern Route of South-to-North Water Diversion Project Operation on Water Environmental of Dongping Lake

2021 ◽  
Vol 276 ◽  
pp. 01006
Author(s):  
Yunxiang Bao
Keyword(s):  
Impact Assessment ◽  
Water Environment ◽  
Assessment System ◽  
Water Diversion ◽  
Ecological Environment ◽  
Fuzzy Evaluation ◽  
Water Diversion Project ◽  
North Water ◽  
Dongping Lake ◽  
The Impact

The Eastern Route of the South-to-North Water Diversion Project is a national strategic measure to improve the water supply conditions of the cities along the route, Jiaodong and Huaibei regions. However, the Water Diversion Project not only brings social and economic benefits, but also changes the hydrological situation and ecological environment of water source area, transfer area and receiving area. In this paper, Dongping Lake is selected as the research object. By using the analytic hierarchy process and fuzzy evaluation method, the index system of the impact assessment of the Eastern route project on the water environment of Dongping Lake is constructed, and a multi-level fuzzy evaluation model is established to conduct quantitative and qualitative research on the impacts of hydrology, meteorology, water ecological environment, soil and other aspects as well as ecological and economic compensation. The analysis results show that the operation of the Eastern route project has brought some negative effects on Dongping Lake, mainly reflected in the aspects of soil, ecological compensation, hydrology and meteorology, and the negative effects on the water ecological environment are light. By studying the impact of the Eastern route project on the water environment of Dongping Lake, this paper aims to improve the environmental impact assessment system for the water receiving area of the Eastern Route of the South-to-North Water Diversion Project, and to provide reference for the research on the environmental impact assessment system for other water diversion projects in China.

scholarly journals A Comprehensive Study of the Impact of Large-Scale Landscape Pattern Changes on the Watershed Ecosystem

Water ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1361
Author(s):  
Hai Liu ◽  
Heng Di ◽  
Yuefei Huang ◽  
Liang Zheng ◽  
Yuan Zhang
Keyword(s):  
Landscape Pattern ◽  
Water Conservation ◽  
Water Storage ◽  
Water Source ◽  
Water Diversion ◽  
Growth Trend ◽  
Danjiangkou Reservoir ◽  
Climate Regulation ◽  
Water Diversion Project ◽  
The Impact

The South-to-North Water Diversion Project (SNWD) is the world’s largest inter-basin water diversion project, and the Danjiangkou Reservoir is a water source of the middle route project of the SNWD. Dynamic monitoring of ecological environment changes in Danjiangkou Water source area can provide theoretical support for reservoir water storage security and ecosystem protection. In this study, the water storage of Danjiangkou reservoir was estimated and its dynamic change was analyzed. On this basis, the changes of landscape pattern and ecosystem services value caused by the SNWD project were analyzed. The results show that the reservoir storage presented an obvious growth trend from 2000 to 2019, especially after the middle route of the SNWD was opened in 2014. After the implementation of the SNWD project, the vegetation degradation in Danjiangkou reservoir area was obvious, which is mainly related to the expansion of construction land. The ecosystem service value of the Danjiangkou Reservoir was mainly determined by the water conservation supply value and climate regulation value. After the implementation of the SNWD project, the values of water conservation and supply, climate regulation, and hydropower generation showed an increasing trend, while the values of fixing carbon and releasing oxygen, and organic matter production showed a decreasing trend.

scholarly journals Driving factors for runoff decline in the Upper Hanjiang basin, a major water source for the South-to-North Water Diversion Project in China

2015 ◽  
Vol 368 ◽  
pp. 63-68
Author(s):  
S. Zhang ◽  
D. Yang ◽  
X. Xu
Keyword(s):  
Landscape Change ◽  
Water Source ◽  
Qualitative Description ◽  
Water Diversion ◽  
The South ◽  
Runoff Change ◽  
Water Diversion Project ◽  
North Water ◽  
Runoff Decrease ◽  
The Impact

Abstract. With dramatic changes in climate and land-cover patterns around the world, it is of great significance to evaluate the corresponding influence on runoff change as water resources have become a strategic resource. We analysed the runoff change driven by landscape change and climate variation in Hanjiang River basin, which is the water source area of the central route of the South-to-North Water Diversion Project in China. Results show that the runoff decreased greatly from 1960 to 2012 in all the six selected sub-catchments. Attribution analysis results show that reduction of precipitation contributed to the catchment runoff decrease by 39.5–64.9% and landscape change, represented by increase of the parameter in the mathematical Budyko function contributed to the runoff decrease by 34.4–63.3%, while potential evapotranspiration change had a slightly negative contribution. In addition, the contribution is spatially variable from downstream to upstream. We conclude with a qualitative description about how water availability changes under changing landscape and climate conditions, and focus on the impact of vegetation cover change.

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