Southern Plateau Intensive Land-use Change And Environmental Response

In the south of Loess Plateau Region is currently in the industrialization and urbanization development stage, an essential feature of this stage is a large number of non-agricultural land utilization. As the basic factor of production, conversion of land use on the one hand support the rapid economic development, it also produced such as food security, economic security, social security and ecological security, and other issues, this paper established the land south of the Loess Plateau intensive use and the ecological environment based on the model of sustainable development, social development and ecological environment from the perspective of harmony, different indicators were selected on the Loess Plateau in the southern city of the domain system and the county scale intensive use of land under the current situation was evaluated.With the help of the GIS software platform and Exploratory Spatial Data Analysis, from the perspective of temporal and spatial variation, the dynamic analysis of land-intensive in the region of changing circumstances over the past decade, end up in the southern Loess Plateau under different scales of time and space intensive land use change in plans. The article also uses the analysis of related models calculated the typical Southern Plateau Ecological Land Use Change and the correlation coefficient between environmental indicators, used to study the typical Southern Plateau intensive use of land and ecological environment, the relationship between the system and use the main Analysis of positive impact of intensive land use on ecological vulnerability factor analysis. Finally, intensive use of land on the Loess Plateau in the southern sustainable development and ecological environment were studied, of which the typical area of urban construction land and rural residential land, for example, calculate the two types of intensive use of land use potential and as typical of the Loess Plateau in the southern residential areas and rural residents of urban land intensive mode was studied, following main conclusions.①the Loess Plateau in the southern cities overall level of intensive land use is not high, and the internal differences are significant, the overall distribution was awl type, in which the highest degree of intensive land use in Xi'an, the least intensive use of land is Ding'xi.②Based on the Spatial distribution, the existence of the Loess Plateau in the southern cities and intensive use of land similar to the situation, manifested in high intensive land use and land intensive use of the city high in the City of aggregation, intensive land use is low in the city and the degree of intensive land use City of lower gather.③Typical areas in the southern Loess Plateau, the different land types and environmental factors showed a positive correlation between intensive land use affect the region's leading environmental vulnerability factors can be attributed to two major factors of population and climate.④In the intensive use of potential, typical of the Loess Plateau in the southern counties between the region's per capita construction land and rural residential land per capita are significant differences between the downtown residential area per capita is far lower around the other areas, the potential of the overall shortage of intensive use.⑤Southern Plateau region for the different status of intensive land use, this article suggests should actively promote a variety of modes in the region, the combination of integrated land use patterns, which aims to maximize the use of land reserves. The town land for construction, adjustable industry model, to promote urban redevelopment. Rural residential land, to develop the village center, urban apartments, community oriented to meet the planning of rural settlements.In order to alleviate the southern Loess Plateau, increasing the current land supply and demand, the rapid development of regional economy in urgent need of land resources, as well as a huge threat facing the local ecological environment situation, the proposed construction of the southern region in the Loess Plateau, resource-saving and environment-friendly land intensive use of models and for the achievement of this objective, and the introduction of policies to provide feasible suggestions.