The land use planning environmental impact assessment in Longnan City

Starting from the improvement of the Holistic Land Use Planning in Longnan City, Gansu Province, in this paper the objectives of land use planning are researched, and the present situation of land use in Longnan City is analyzed. An index system is developed for the environmental impact assessment according to the environmental impact identification and the present situation in Longnan City. The index system is divided into three hierarchies, i.e. the chief target hierarchy A, standard hierarchy B and indicator hierarchy C. There are 20 assessment factors in the indicator hierarchy. In the light of which, it is attempted to calculate the weights of the indexes and provide a method for the further research work of environmental impact assessment. The result shows that there is a positive effect of the Holistic Land Use Planning on the holistic ecological environment in Longnan City, which is helpful for the holistic objectives of sustainable land use and environmental protection in Longnan City.