Abstract:

Environmental impacts of the overall planning of land uses include elemental impacts in the traditional environmental impact assessment and impacts in regional humanenvironmental system.Environmental impacts resulted from the rigid programs and elastic programs of the overall planning of land uses appear as in different ways.This difference makes the environmental impact assessment of the overall planning of land uses very complex.Whereas the particularity of the overall planning of land uses as the assessment object of environmental impact,the method of environmental impact analysis and ecological satisfaction appraisal for the overall planning of land uses was developed in this paper.With identification of environmental impact for land use planning,the environmental influences from the change of land use types after the enforcement of land use planning were discussed.According to the overall planning of land uses in the Xiantao City of Hubei Province,China,the pollution sources were identified.The surface analysis and spatial statistical disposition were performed with the support of software MAPGIS,the changes of main environmental indices were predicted.By the changes of ecological indices,the ecological satisfaction was assessed.The results show that the predicted ecological satisfaction is 7485 in the planning region,and ecological environment is satisfactory in general.But the water pollution is relative hard,and the controlling of water pollution should be strengthened.The harmless treatment of solid waste should also be emphasized.There are many uncertainties in environmental impact assessment for the overall planning of land uses,the selection of assessment indices should follow the planning contents and the regional differences to construct the index system of ecological satisfaction appraise.

Key words: land use planning/environmental impact/ecological satisfaction/influence identification/assessment 