Abstract
The Three Gorges Reservoir Area is an important ecological barrier and an important area of water conservation in China. Due to natural and man-made factors, the regional urbanization process is accompanied by soil erosion. In recent years, by actively implementing measures such as tree planting and afforestation, water and soil conservation projects, the forest coverage rate in the Chongqing Three Gorges Reservoir area has increased significantly, and soil erosion has been initially controlled. But the task of environmental protection in the Three Gorges Reservoir area is still arduous. This research analyzed the causes of soil erosion caused by the urban process, by collected and combed the data of soil erosion in the Three Gorges Reservoir area of Chongqing over the years. The causes of soil erosion in the Three Gorges Reservoir area caused by the urbanization process were deeply analyzed, we proposed to improve legislation and supervision; strengthen publicity and education of soil and water conservation; adopt new technology and technology and other governance countermeasures. The Three Gorges Reservoir is an important ecological barrier in the upper reaches of the Yangtze River. The control of soil erosion in the area has important ecological and social benefits for protecting the ecological environment of the Yangtze River Basin in China.
Highlights
The Three Gorges Reservoir area is located in the slope area of the second step of Chinese three major geomorphic steps, which is an important ecological barrier in the upper reaches of the Yangtze River, as one of the centre of heavy rains in China
Reservoir area of Chongqing has increased to 50.2%, the soil water retention capacity has increased by 63%, the annual reduction of soil erosion is about 150 million tons, and soil erosion has been initially controlled
This research analyzed the causes of soil erosion caused by the urban process, by collected and combed the data of soil erosion in the Three Gorges Reservoir area of Chongqing over the years
Summary
The Three Gorges Reservoir area is located in the slope area of the second step of Chinese three major geomorphic steps, which is an important ecological barrier in the upper reaches of the Yangtze River , as one of the centre of heavy rains in China. According to the 2019 Chongqing Municipal Soil and Water Conservation Bulletin, at the end of 2019, the total area of soil erosion in the city was 25,400 square kilometres(Table 1), accounting for 30.89% of the total land area. The Three Gorges Reservoir area is an important ecological barrier in China. Reservoir area of Chongqing has increased to 50.2%, the soil water retention capacity has increased by 63%, the annual reduction of soil erosion is about 150 million tons, and soil erosion has been initially controlled. This research analyzed the causes of soil erosion caused by the urban process, by collected and combed the data of soil erosion in the Three Gorges Reservoir area of Chongqing over the years. Proposed targeted suggestions based on in-depth analysis of the problem
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