Rural labor-force migration under the restriction of water resource in the inland river basin:A case of Zhangye City in Heihe River Basin

The inland river basin is obturation and frailty as the ecology-economy-society system relatively,and water resource is the linchpin of subsistence and development.There is dual-contradictory because of lacking of water on resource and structure;on the one hand,using-water for economy occupies using-water for ecology,on the other hand,using-water for agriculture occupies using-water for industry and life.As a result ultimately,the use pattern of water resource is dispersed,high expenditure,the low benefit.The core of contradictory is the chain of urban-rural.If the that rural-labor can not migrate from rural to urban,the change of use pattern of water resource is impossibe to happen,and the contradictory of using water in urban-rural is also difficult to solve.The paper thinks that the increase of the using benefit of water resources and using efficiency of water resource by restructuring industry is the premise to realize rural labor-force migrates to the industry.To determine the direction of rural labor-force migration,the paper analyzes advantage and disadvantage of the rural labor-force migration between interior industry of agricultural and exterior industry.Furthermore,the paper quantifies the scale of rural labor-force migration and the scale of urban development and the probability of the rural labor-force migrate to urban with mathematics model.