State Environmental Protection Key Laboratory of Regional Eco-Process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China.
Baotou Teacher's College, Biological Science and Technology Institute, Baotou, China.
PLoS One. 2022 Jul 8;17(7):e0271076. doi: 10.1371/journal.pone.0271076. eCollection 2022.
Due to the fragmentation of protected areas (PA), it is important to build ecological corridors in order to connect scattered PA and form protection networks for biodiversity conservation. We take the Chinese ecological conservation redline (ECR) as an example to study the construction of ecological corridors. China has defined ECR to improve the system of PA in key ecological functional zones, nature reserves, and areas of sensitive and fragile ecological environment. In this study, 187 core areas of ECR were identified using ArcGIS masking and dissolving technology to build corridors, covering 95% of the total ECR areas. Using the Linkage Mapper tool and the Pinchpoint Mapper, we identified 454 ecological corridors 68,794 km long. The results of the line density analysis showed that there are 9 key regional biological corridors connected to the ECR at the national scale, which must focus on protecting and strengthening ecological construction during the implementation of ecological conservation redline policy. Our study will provide references for developing a regional pattern of ecological security, territorial spatial planning, and will promote the implementation of biodiversity conservation policies.
由于保护区（PA）的碎片化，因此建立生态走廊以连接分散的 PA 并形成保护网络以保护生物多样性非常重要。我们以中国的生态保护红线（ECR）为例来研究生态走廊的建设。中国已经定义了 ECR，以完善关键生态功能区、自然保护区和生态环境敏感脆弱地区的 PA 体系。在这项研究中，我们使用 ArcGIS 掩蔽和解散技术确定了 187 个 ECR 的核心区域，以建立走廊，覆盖了 ECR 总面积的 95%。使用 Linkage Mapper 工具和 Pinchpoint Mapper，我们确定了 454 条长 68,794 公里的生态走廊。线密度分析的结果表明，在国家尺度上有 9 条连接 ECR 的关键区域生物走廊，在实施生态保护红线政策时必须重点保护和加强生态建设。我们的研究将为制定区域生态安全格局、国土空间规划提供参考，并将促进生物多样性保护政策的实施。
