江西省生态功能区划的分区过程及结果

生态功能区划是研究生态系统功能,评判生态系统分异和变化特征,提出生态恢复策略的基础。本文在综合分析江西省生态环境特点的基础上,按照生态区划的原则,以江西省80个行政单元为区划对象,建立了各级生态区单元划分的指标体系,采用定性和定量结合的方法对全省进行三级分区。定量分析使用DPS7.05分析软件,主要采用聚类分析和主成分分析法;并运用图形叠置、主导因子和专家智能集成等定性方法优化分区界线,最后使用地理信息系统软件acrview GIS3.03成图,将江西省生态功能区划为4个生态区,13个生态亚区和45个生态功能区。研究结果对江西省维护生态安全,制定生态规划和保护生态环境具有重要参考价值。

Process and Results of Regionalization on the Ecological Functional Regionalization of Jiangxi Province

Regionalization of ecological function is the basis for understanding the function of ecosystem,evaluating the differences and characteristics of ecosystem and framing countermeasures for resuming degrade ecosystem.In this paper,based on the synthetically analysis of the characteristics of ecological environments of Jiangxi Province,the 80 administrative units are consider as the regionalization objects,the principles of ecological regionalization were adopted,indices of ecological regionalization were proposed,and a comprehensive method of combing quantitative analyses and qualitative analyses were utilized for the three levels units of the whole province.The main quantitative analyses is performed on the DPS7.05,it includes cluster analyses and principal component analyses;the quantitative analyses includes superimpose graphics,leading factors and intelligent determination were used to optimize the subarea borderline.Geographical information systems(arcview GIS3.03) were taken into account to chart map.The results shows that Jiangxi Province could be ecological characterized as 4 ecoregions,13 sub-ecoregions and 45 eco-functional zones.The results of this research have a significant value to the maintenance of ecological security,ecological programming and eco-environmental protection of Jiangxi Province.