Research On Ecological Security Pattern Of Jingde County In Anhui Province

Whether the ecological environment is good or not relates much to the sustainable development of human society. Since the Chinese economic reformed, China's economy has been developing rapidly. People's living standard has been continuously improving. With the advancing of urbanization, the scale of the city has been expanding constantly, and the country industry has been rising rapidly. The urban and rural environment has been greatly changed in our country. However, China's economic growth mode is relatively extensive. And the growth of the city takes up a large number of farming land. Factories pour waste gas and water which is below the normal standard. With the excessive deforestation, the resources utilization becomes low. The contradiction between human and nature has caused serious ecological environment problems.Ecological security level is a status which human life cannot be threatened. Ecological security pattern is regional spatial structure, which to maintain the integrity of the ecosystem structure and process, to realize the sustainable use of land resources and to improve ecological environment problems. Sustainable regional development needs a healthy and stable ecological network. After realizing the importance of ecological security, how to design an ecological security pattern has become a hot issue at present.At present the discussions on ecological security pattern are mainly two aspects--geography and landscape ecology. The geography mainly considers on the study of land use structure optimization. The main consideration of landscape ecology is landscape pattern optimization. Now studies which start from the two perspectives are relatively few. Also, the case studies which are according to ecological multiple policy regions and undeveloped regions are few, too.This paper is based on landscape ecology, conservation biology, urban spatial growth and ecological footprint theory, using the data of land use in Jingde County, investigate the existing data, use geographic information system(Arcgis) and related software, use the method of Ecological Footprint Evaluation of regional ecological security, draw on the "profit and loss analysis" method of Environmental Economics, construct of "potential resistance" model of urban spatial growth potential and ecological sensitivity resistance model to analyze land ecological suitability, use the minimum cumulative resistance model to simulate the potential ecological corridor. The study found that in 2013 Jingde County ecological security level is low and ecological deficit; land intensive utilization efficiency is low, the growth of construction land quickly and the reduction of cultivated land; ecological source is more, but the uneven distribution of landscape pattern; the central county is broken. Finally, the land ecological suitability and landscape based on Ecological security pattern construction method of blending the concept of security patterns, to build the overall structure of the ecological security of Jingde County, the structure of the four horizontal, five belt, six longitudinal, multi point, four zone".