Ahai hydropower station reservoir area

After the completion of the dam, the reservoir has a storage capacity of 806 million cubic meters below the normal water level, a total storage capacity of 882 million cubic meters and a regulated storage capacity of 238 million cubic meters. The reservoir has daily regulation performance. When the normal water level of Ahai Hydropower Station reservoir is 1504m, the backwater length is about 75.3km, and the inundation affects 4 counties and 9 townships (towns) including Muli County, Yulong County, ninglang county County and Shangri-La County involved in Sichuan, Liangshan Prefecture, Lijiang City and Diqing Prefecture. According to the design results in the pre-feasibility study stage, the total area affected by reservoir inundation of Ahai Hydropower Station is 23.42 square kilometers, including land area 15.9 square kilometers and water area of 7.52 square kilometers. The inundation affected 2655 mu of cultivated land, 2865 mu of shelter forest and 2943 1 mu of unused land. The flood affected 623 residents in 34 villages.

After the reservoir is formed, the available water surface is about 22.67 square kilometers. After the formation of the reservoir, the misty waves are vast and the water and sky are the same, creating good conditions for the development of local tourism.

The land requisition for the construction of Ahai Hydropower Station involves Yulong County of Lijiang City, ninglang county, Shangri-La County of Diqing Prefecture, Muli County of Liangshan Prefecture of Sichuan Province, and 4 counties of 2 provinces, 3 states (cities). The construction requisition area is vast and sparsely populated, mostly in high mountains and canyons, covering an area of 8,424 mu of cultivated land, with a planned relocation population of 2,538 people. The land requisition and resettlement of Ahai Hydropower Station has the characteristics of less land occupation and less resettlement, which has unique development advantages compared with other power stations of the same scale. The resettlement planning report for land acquisition of Ahai Hydropower Station is the first large-scale hydropower project resettlement planning report in China based on the Regulations on Land Acquisition Compensation and Resettlement for Large and Medium-sized Water Conservancy and Hydropower Projects (the State Council Decree No.471) and the Code for Planning and Design of Land Acquisition and Resettlement for Hydropower Projects in 2007, which provides and accumulates valuable experience for the resettlement planning and design of large and medium-sized hydropower projects in China. Resettlement compensation is also the first large-scale power station in China to implement long-term compensation. In the implementation stage, the long-term compensation policy for immigrants will be thoroughly studied and improved, which is of great significance to the research and formulation of resettlement policy for large and medium-sized hydropower projects in China.