Study On The Environmental Impact Assessment Of Land Development And Consolidation

12th-Five-Year-Plan is the most important period of China for economic development, deepening reform, building a moderately prosperous society, also the important stage of promote new rural construction, urban and rural development, dynamic equilibrium of the total arable land, Continuously improve the quality of arable land, Better to solve the "Rural areas, agriculture and farmers" issue. Land development and consolidation is the process of land resources and it’s development and utilization restructuring and optimizing. Changes in surface ecosystems will inevitably affect the corresponding ecological effects. The environmental impact of land development and consolidation of the major factors affecting the composition of the land ecosystem. Such as soil, vegetation, climate, water resources and social etc. Reasonable finishing will improve ecosystems, improving land productivity, extend the sustainable use of land resources, unreasonable finishing will get the opposite effect. Therefore, the use of theoretical and empirical research method of combining land development and environmental impact evaluation, quite realistic and guidance.This article studies the basic theory and evaluation of environmental impact assessment, land development and environmental factors that may influence Process of a detailed screening and selection, chose 17 indicators established environmental impact assessment index system which use a single factor index of indicators to quantify and dimensionless processing to determine the index weight, and analyzed in-depth, systematic use of comprehensive index method with AHP. Empirical research combined with Altay Baru Wang Tas village land consolidation project study, the findings show that land consolidation can improve the ecological and economic benefits, to carry out land consolidation projects in the project area for the project area soil, air, water, vegetation of biological, social and economic environment has improved. After finishing the project area environmental dependence on vegetation biological environment stronger than the other three. The main factors in addition, soil /atmosphere and vegetation biological environment in this case the environmental impact of land consolidation, soil organic matter content, shelter coverage, water balance index and other evaluation factors is an important parameter of environmental impact.