湖南省森林公园空间分布特征及其影响因素分析

Spatial Distribution Characteristics and Influence Factors of Forest Parks in Hunan Province

基于GIS的空间分析功能,运用最邻近比率、地理集中指数、核密度、可达性、缓冲区分析等方法,对湖南省的森林公园空间分布特征及其影响因素进行分析。结果表明:湖南省森林公园的空间分布类型为集聚型,在空间分布上具有不均衡性特点;空间分布密度呈"点状集中,点带状分布"特点;空间可达性具有明显的交通指向性特点;空间分布数量随着与市中心距离的增加呈先增后减态势。主要影响因素包括植被覆盖、河流、湖泊等自然因素和人口数量、交通条件等社会经济因素。

Based on the spatial analysis function of GIS,used the methods of nearest neighbor ratio,concentration index,kernel density,accessibility analysis and buffer analysis,the spatial characteristics and influence factors of forest parks in Hunan Province were analyzed. The results showed that the spatial distribution type of forest parks in Hunan Province was agglomeration,and there was a certain non-equilibrium characteristic,and showed that the characteristic of＂spot concentration,point and band distribution＂. The spatial accessibility of forest parks in Hunan Province had obvious traffic directivity characteristics. The number of spatial distribution showed the trend of increased firstly and then decreased with the increase of distance from the center of the city. The influence factors included natural factors such as vegetation cover,rivers and lakes,as well as social and economic factors such as population,traffic condition,etc.