基于生态功能重要性和敏感性的安徽省生态安全格局构建

Building ecological security patterns in Anhui Province based on ecological importance and ecological sensitivity

本文以安徽省为例利用最小累计阻力模型提取潜在生态廊道和关键生态廊道,以此构建安徽省生态安全格局。研究结果表明:安徽省生态源地面积为62150.34km^2,占安徽省总面积的44.7%,生态源地集中分布在南部地区,北部地区分布较为零散,土地利用整体以耕地和林地为主,生态源地核心区林地占比最多,达到75.46%;关键生态廊道和潜在生态廊道分别长246.63km和5072.32km,以“三轴一环一网”的形式将安徽省生态源地相连。

This paper takes Anhui Province as an example, nd the use of minimal cumulative resistance model to extract potential ecological corridors and key ecological corridors to construct ecological security pattern in Anhui Province. The study shows that the ecological source area of Anhui Province is 62 150.34 km^2, accounting for 44.7% of the total area of Anhui Province. The ecological source area is concentrated in the southern area, and the distribution in the northern area is scattered. The whole ecological source area is mainly cultivated land and woodland, while the woodland in the core area of the ecological source area is the most, reaching 75.46%. Key ecological corridors and potential ecological corridors are 246.63 km and 5 072.32 km long respectively. The“three axes, one ring and one net”form links the ecological source of Anhui Province.