Jiangxiang Reservoir in Dingyuan County of Anhui Province is a typical reservoir in hilly region with small terrain fluctu ation,for which the amount of resettlement for and construction land acquisition is large.In order to protect and fully utilize the land resources therein,a project of land reclamation in the area of the reservoir is adopted,which is a feasible and effective measure for reducing land acquisition and resettlement.Through the design of three schemes,the scheme of land reclamation with the earth from reservoir excavation is finally determined from the aspects of area protection,amount of permanent land acquisition,amount of temporary land acquisition,investment,etc.,i.e.utilizing the earth excavated from the reservoir,the land can be filled up over the farmland expropriation line (43.5 m),thus the permanent land acquisition of 673.94 hm2 can be reduced.So this scheme is concerned,not only the land resources can be protected and fully utilized and the investment for the resettlement for the land acquisition can be saved,and it is also convenient for the implementation of the project on one hand,on the other hand,the earth source in the submerged area is rich with better soil quality and then can meet the demand of the land reclamation,moreover,the local government requires to reduce the farmland occupation from the project for leaving an appropriate margin for the sustainable development concerned.Thus it can be seen that the social-economic benefits are significant for the adoption of the scheme of land reclamation with the earth from reservoir excavation,which can provide a reference for the similar project.%安徽省定远县江巷水库为典型的丘陵地区水库,地面高程起伏不大,建设征地移民数量大.为保护和充分利用土地资源,采取库区造地工程以减少征地及移民安置是一项可行和有效的措施.针对3个设计方案,从保护面积、永久征地数量、临时征地数量、投资等角度进行比选分析,最终确定采用挖库垫地方案,利用库内开挖土方垫高至耕地征收界线(43.5 m)以上,可减少永久征地673.94 hm2.选择该方案,一方面可以保护和充分利用土地资源、减少征地移民投资、便于工程实施;另一方面,淹没区土源丰富、土质较好,能满足造地工程需求;再者,地方政府要求减少工程占用农田的数量,为地方可持续发展留有余地.由此可见,采取挖库垫地方案,经济社会效益显著,可为类似工程提供借鉴.
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