四川省生态功能类自然保护地的时空演变特征

为了全面建设具有中国特色的自然保护地体系，加强对生态功能类自然保护地的空间分布格局及演化特征的基础研究具有十分重要的意义。针对四川省独特的自然地质环境，运用计量地理学以及GIS空间分析等方法，分析1965—2015年期间四川省生态功能类自然保护地的空间分布与演化特征，结果表明：四川省生态功能类自然保护地的空间分布主要为集聚型；虽不均衡但有向平均分布发展的趋势；已演化成以环四川盆地的高密度分布多核区域和高密度分布片区带为主导、川西和川西南呈高密度片区带状分布的格局。研究还发现：四川省生态功能类自然保护地空间分布的重心迁移轨迹呈由东北向西南方向迁移趋势，逐渐接近四川省的几何中心。

Spatial-temporal Evolution Characteristics of Ecological Functional Nature Reserves in Sichuan Province

In order to construct the system of nature reserves with Chinese characteristics， it is necessary to strengthen the basic research on the spatiotemporal evolution patterns of ecological functional nature reserves. Given the unique natural geological environment of Sichuan Province， we made an analysis of the spatial distribution characteristics and evolution process of ecological functional nature reserves from 1965 to 2015. The results showed that: 1) ecological functional nature reserves in Sichuan Province were mainly in clusters in terms of spatial distribution； 2) the spatial distribution of ecological functional nature reserves in Sichuan Province was imbalanced with a big gap between 21 prefecture-level regions through 50 years’ development， but is developing towards a balanced distribution； 3) the spatial distribution has evolved into a pattern dominated by high-density multi-core areas and high-density scattered zones and belts around Sichuan Basin， with high-density scattered zones and belts in western and southwestern Sichuan； 4) the center of nature reserves in Sichuan Province has transferred from northeast to southwest， getting closer to the center of Sichuan Province.