Comprehensive Land Management In Spatial Pattern Optimization Study

With the scope and intensity increasing of human impact on land use, land use spatial pattern and landscape style has also occurred great changes, at the same time, land use problems are emerging. Humans come to realize that the land remediation for a single purpose only focus on the number of optimization, and not a good solution to the protection of arable land and the needs of land use, but lead to the destruction of the ecological environment and land use landscape pattern. This paper focuses on the spatial pattern optimization which is the core issue of the land comprehensive improvement, on the basis of the multi-objective multi-level regional coordinating role in the land comprehensive improvement, put forward the concept of spatial pattern, and implement the land comprehensive improvement result on the spatial pattern, and achieve regional land sustainable use within a certain range.Around this proposition, we carried out the research, the following major elements:①Carefully review and learn progress of the spatial pattern optimization of the comprehensive improvement home and abroad, and elaborate research status of home and abroad, on the basis, put forward the research ideas and research contents, and also develop research routes; with Sustainable development theory, system theory, location theory and theory of landscape pattern, the "anti-planning theory, multi-objective coordination theory as theoretical basis; with spatial modeling, spatial analysis, DEM analysis and cluster analysis methods as technology and methods;②Using the diversity index analysis, the combination coefficient method, f the location index analysis, patch density, resolution and fractal index to analyzing the land use number and spatial distribution, and providing reference data to diagnose Nanjian County land use problems; reasonably determine Binding conditions of land use, GIS spatial analysis function for the support, analysis existing problems and constraints of arable land, urban and rural construction land, the ecological landscape of woodland and other land, river waters in the use.③pplication of cluster analysis and GIS spatial overlay function to determine land use zoning, to specify the number and spatial location of various land use types, as well as the type in the land use area, then provide theoretical and real spatial data for land direction of the comprehensive improvement and the spatial pattern optimization;④on the basis of defining the principles of land remediation objectives and spatial pattern optimization, determine the number and spatial location of the land use style which has problem in the remediation unit (the zoning), and optimize these styles on the spatial pattern. According to the results of case study analysis shows that the land for ecological landscape significantly increased, and more gathered in the spatial layout; the quality of cultivated land has increased; urban and rural land more clustered On the spatial pattern;Scattered rural settlements through linked to changes to adjust to surrounding urban land use which has space advantage; Woodland significantly increased in the number, and reflected the landscape pattern advantage in space; more rational layout of the county in the river waters.