Land Cover Changes and Drivers in the Water Source Area of the Middle Route of the South-to-North Water Diversion Project in China from 2000 to 2015

2020 ◽  
Vol 30 (1) ◽  
pp. 115-126 ◽  
Author(s):  
Wenwen Gao ◽  
Yuan Zeng ◽  
Dan Zhao ◽  
Bingfang Wu ◽  
Zhiyuan Ren
Keyword(s):  
Land Cover ◽  
Source Area ◽  
Water Source ◽  
Water Diversion ◽  
Land Cover Changes ◽  
The South ◽  
Water Diversion Project ◽  
North Water

scholarly journals Comparisons and improvements of eco-compensation standards for water resource protection in the Middle Route of the South-to-North Water Diversion Project

2020 ◽  
Vol 20 (8) ◽  
pp. 2988-2999
Author(s):  
Mengkai Liu ◽  
Jing Guo
Keyword(s):  
Socioeconomic Development ◽  
Source Area ◽  
Water Source ◽  
Water Diversion ◽  
The South ◽  
Ecological Service ◽  
Water Diversion Project ◽  
North Water ◽  
Compensation Standard ◽  
The Cost

Abstract Reasonable eco-compensation standards are conducive to increasing the enthusiasm of residents in the water source area of the water diversion project for ecological environmental protection and maintenance and for improving the water quality security of the water receiving area. In this paper, a comparative analysis of calculation mechanisms, formulas, and results of 7 types of eco-compensation standard methods for the Middle Route Project of the South-to-North Water Diversion Project in China is conducted. The research shows that the calculated results for the 7 types of methods differ greatly and considers that the cost and ecological service value methods are appropriate. Using this as the basic method to consider introducing market value of water resources, internal income of water source area, and government financial support for method improvement, the results show that the improved methods can reduce the gap between the per capita income of the water source area and the reference area, increase the satisfaction of both the water receiving area and the water source area, and provide support for overall socioeconomic development.

scholarly journals Human Activity Intensity Assessment by Remote Sensing in the Water Source Area of the Middle Route of the South-to-North Water Diversion Project in China

2019 ◽  
Vol 11 (20) ◽  
pp. 5670 ◽  
Author(s):  
Gao ◽  
Zeng ◽  
Liu ◽  
Wu
Keyword(s):  
Remote Sensing ◽  
Land Cover ◽  
Human Activity ◽  
Human Activities ◽  
Source Area ◽  
Water Source ◽  
Water Diversion ◽  
Activity Intensity ◽  
Water Diversion Project ◽  
North Water

Human activities have significantly affected the natural eco-environment, which could lead to land cover changes. The human activity intensity of land surface (HAILS) represent human activity at the regional scale and can be monitored efficiently over a long term based on land cover data collected by remote sensing techniques. In this study, we quantify the HAILS index for 2000, 2010, and 2015 based on land cover, and analyze its temporal and spatial variation to illustrate the potential influence of human activities on the water quality in the water source area of the Middle Route of the South-to-North Water Diversion Project (MR-SNWDP). The results show that from 2000 to 2015, the HAILS decreased in general but increased with the highest increment of 78.4% around water resources. The area showing high values of HAILS increased at a rate of 30.8% from 2000 to 2015. In the riparian zone around the water body, the HAILS rose at an increment of 0.68% in 2010 to 0.05% in 2015. On the basis of the variation of the HAILS, it has been revealed that human activities, increased mainly around water bodies, may increase the risk of water pollution.

scholarly journals Temporal and Spatial Changes of Non-Point Source N and P and Its Decoupling from Agricultural Development in Water Source Area of Middle Route of the South-to-North Water Diversion Project

2019 ◽  
Vol 11 (3) ◽  
pp. 895 ◽  
Author(s):  
Liguo Zhang ◽  
Zhanqi Wang ◽  
Ji Chai ◽  
Yongpeng Fu ◽  
Chao Wei ◽  
...  
Keyword(s):  
Point Source ◽  
Quantitative Estimation ◽  
Effective Means ◽  
Source Area ◽  
Water Source ◽  
Scientific Basis ◽  
Water Diversion ◽  
Nps Pollution ◽  
Water Diversion Project ◽  
North Water

The quantitative estimation of non-point source (NPS) pollution provides the scientific basis for sustainability in ecologically sensitive regions. This study combined the export coefficient model and Revised Universal Soil Loss Equation to estimate the NPS nitrogen (NPS-N) and NPS phosphorus (NPS-P) loads and then evaluated their relationship with Primary Industrial Output Value (PIOV) in the water source area of the middle route of South-to-North Water Diversion Project (SNWDP) for 2000–2015. The estimated results show that: (1) dissolved nitrogen (DN) load increased 0.55%, and dissolved phosphorus (DP) load decreased 4.60% during the 15 years. Annual loads of adsorbed nitrogen (AN) and adsorbed phosphorus (AP) increased significantly before 2005 and then decreased after 2005. Compared with 2000, AN and AP loads in 2015 significantly decreased by 32.72% and 30.81%, respectively. Hanzhong Basin and Ankang Basin are key areas for controlling dissolved pollution, and southern and northern regions are key areas for adsorbed pollution. (2) From 2000 to 2005, NPS pollutants and PIOV showed weak decoupling status. By 2015, NPS pollutants had strong decoupling from PIOV in most counties. (3) Land use has been the main source of NPS-N and NPS-P pollution, accounting for about 75% of NPS-N and 50% of NPS-P based on the average value over the study period. In the future, various measures—such as returning cropland to forest and reducing the number of livestock—could be adopted to reduce the risk of NPS pollution. NPS pollution caused by livestock was grown over the past 15 years and had not yet been effectively controlled, which still needs to be urgently addressed. Collecting ground monitoring data and revising parameters are effective means to improve the accuracy of simulation, which deserve further study. The results will also provide scientific support for sustainable development in similar regions.

Establishing the Ecological Circulation Circle in the Water Source Areas of the South–to–North Water Diversion Middle Routes Project

2012 ◽  
Vol 518-523 ◽  
pp. 4337-4340
Author(s):  
Hui Yin Ji
Keyword(s):  
Water Source ◽  
Hebei Province ◽  
Water Diversion ◽  
Ecological Environment ◽  
Environment Protection ◽  
The South ◽  
Source Areas ◽  
Water Diversion Project ◽  
North Water ◽  
Tianjin City

The South–to–North Water Diversion project provides water mainly for Henan and Hebei province , Beijing and Tianjin city . So the ecological environment protection in the water source areas is very important. But the ecological environment of water source areas of the middle route project is damaged becsuse a large amount of fertilizer and pesticide are used in the field, the pollution is heavy, and some lakes are turned into fields at some area. The systematic ecological circulation circles have not been established. This paper puts forward the countermeasures and methods of establishing the ecological circulation circle in the water rource areas of the middle route project after it illustrates the importance of establishing the ecological circulation circle in the water source areas , and analyzes the problems of the ecological circulation circle in the water source areas.

scholarly journals Balancing Rural Household Livelihood and Regional Ecological Footprint in Water Source Areas of the South-to-North Water Diversion Project

2017 ◽  
Vol 9 (8) ◽  
pp. 1393 ◽  
Author(s):  
Chen Wang ◽  
Guoqing Shi ◽  
Yongping Wei ◽  
Andrew Western ◽  
Hang Zheng ◽  
...  
Keyword(s):  
Ecological Footprint ◽  
Water Source ◽  
Rural Household ◽  
Water Diversion ◽  
The South ◽  
Source Areas ◽  
Water Diversion Project ◽  
North Water ◽  
Household Livelihood

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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