Study On Planning In Wetland Park Of Guangxi West Karst Area

Wetland park has the function of conserving water, purifying air and water quality, protecting and cultivating the biodiversity. This article will take Guangxi YanTan wetland park for example, used Wetland landscape science, Restoration Ecology, and Ecological planning theory, perfect planning concept to construct the tropical South Asia in karst region of the ideas and methods of ecological planning. The main researches are as following:1. The main contents and methods will come forward on the basis of acquaintance the related theories of Karst landform and wetland park and the domestic and foreign research progress. Study the outstanding cases of Wetland park at home and abroad, then propose my own concept of "harmonious development" and conclude the factors to construct the wetland park.2. Analysis the current situation of the region, historical culture, diversity and entironment in the researched area, use the theory of ecological sensitivity to evaluate the ecological sensitivity of the area and summarize the trend of the developing direction of land use on the basis of GIS spatial analysis.The insensitive area has a area of2667.4hm2, accounting for16.66%of the total area. It is suitable for development and construction. Lower、middle and higher sensitive area is not suitable to develope the protective wetland park. It has an area of13346.79hm2, accounting for83.34%of the total area. That is to say, construction land will be controled in16.66%type of the area land use. The other land are not suitable for constructing the park. It reflects the fitness willmigerl of the expansion of the researched area construction land under the influence of elevation, slope, water, vegetation, soil layer thickness, crown density and so on. Higher area is concentrated. Insensitive and middle area is scattered, the same with the extremely high sensitive and lower area.Use ecological suitability theory to analyse the suitability of land use in the insensitive area, thus better construction areas will be divided. Selected road, population, land and other factors, give them an amount and determine the proportion. Finally calculate the comprehensive ecological suitability. Divid the insensitive area into9parts,①②③are the unsuitable areas,④⑤⑥are the medium suitable areas,⑦⑧⑨are suitable areas.3. Divide the overall layout and function area according to ecological sensitivity levels and the ecological suitability level in the insensitive area and then put forward a district planning——one area one corridor three region.Take the planning of Guangxi yantan reservoir area of wetland park for example and then analyse all kinds of specific plannings: the biodiversity protection and cultivation project, the detection planning, the ecotourism planning, infrastructure planning and so on. Put forward the existence questions and suggestiongs of the healthy development of the wetland park. Finally, sum up the main conclusion of this article.