基于分解步骤法的浙江开化县域综合生态分区

生态功能分区涉及多种不同性质指标的综合合成过程。采用定性与定量结合的“分解步骤法”进行生态功能分区。第一步，利用研究区的地形、植被、水文等图件资料，借助Arc GIS平台，对开化县域自然格局进行分析，从而实现生态功能区的初级划分；第二步，利用《开化县统计年鉴》及环保、农业、林业等部门提供的资料，结合开化县战略规划制定的目标，以镇级行政单元为基础，进行聚类分析，从而实现生态功能区的再划分，即对生态功能区经济社会要素进一步细化。在此基础上，对各功能区生态建设和环境保护提出具体目标和管理对策。

SYNTHETICAL REGIONALIZATION OF ECOLOGICAL FUNCTION IN KAIHUA COUNTY,ZHEJIANG PROVINCE BASED ON "DECOMPOSING STEP METHOD"

Regionalization of ecological function is a synthetical process which refers to various indices of different characters.In this paper,we studied the ecological function regionalization by applying "decomposing step method" which is a combination of qualitative and quantitative methods.In the first step,in virtue of Arc GIS,we analyzed the natural structure of Kaihua county,making use of its maps of landform,vegetation,hydrology,so as to realize the primary plot of ecological function region.Secondly,we carried out the clustering analysis on the basis of town administrative cells,using data supported by "Kaihua Annual Statistics" and data from environment protection, agriculture,and forest departments etc.The repartition of ecological function region was then achieved with the combination of the target outlined in "2004~2020 Kaihua Strategic Planning".The second step is namely the embodiment of economic and social factors.Based on this process,we proposed the particular objective and management measures for the ecological construction and environment protection in regions with different ecological functions.