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The water level of the Three-Gorge Reservoir will reach the height of 135m, and the government pays great attention to security of cities/towns and emigration villages that may be affected by debris flow activities. How will the debris flow activities develop when the water level of the Reservoir reaches 175 m in height in 2009? This paper analyzes the change of environment for debris flow before and after storing water comprehensively, and special attention is given to the effects of the Reservoir bank rebuilding-process on debris flow activities, and the probability of appearance of new manmade debris flow due to irrational human activities during the construction of the Reservoir. 11 items of predicted results on the developing trend of debris flow activities in the Reservoir area and a suggestion are presented for relevant branches as references in the discussion and implementation of prevention and control of geological disasters in the Reservoir area.
The water level of the Three-Gorge Reservoir will reach the height of 135m, and the government pays great attention to security of cities / towns and emigration villages that may be affected by debris flow activities. How will the debris flow activities develop when the water level of the Reservoir reaches 175 m in height in 2009? This paper analyzes the change of environment for debris flow before and after storing water comprehensively, and special attention is given to the effects of the Reservoir bank rebuilding-process on debris flow activities, and the probability of appearance of new manmade debris flow due to irrational human activities during the construction of the reservoir. 11 items of predicted results on the developing trend of debris flow activities in the reservoir area and a suggestion are presented for relevant branches as references in the discussion and implementation of prevention and control of geological disasters in the Reservoir area.