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基于生态安全格局的国土空间生态修复关键区域识别——以河北省阜平县为例
1, 1, 1, 1, 1, 2

(1.hebeinongyedaxue ziyuanyuhuanjingkexuexueyuan, hebei baoding 071000; 2.hebeinongyedaxue guotuziyuanxueyuan, hebei baoding 071000)

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Identification of Key Areas of Ecological Restoration of Land and Space Based on Ecological Security Pattern
-Taking Fuping County of Hebei Province as an Example.

(1.college of resources and environmental science, hebei agricultural university, baoding 071000, china; 2.college of land and resources, agricultural university, baoding 071000, china)

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备注

国土空间生态修复对于保障国家生态安全有重要意义,而目前从整体连通性的高度识别与修复国土空间生态系统关键区域的研究尚为欠缺。为全面识别阜平县国土空间生态修复关键区域,运用粒度反推法、Invest模型中的生境质量模块、MCR模型、linkage mapper分析,通过构建国土空间生态安全格局的方法,最终确定阜平县国土空间生态修复关键区域,主要包括待修复生态夹点、待修复生态障碍点、待修复生态断裂点。结果表明:(1)阜平县共计生态源地518.35 km2,主要为林地及水域; 生态廊道共计481.85 km;(2)通过构造生态格局,诊断出待修复生态夹点区域28处; 待修复生态障碍点66处; 待修复生态断裂点23处; 待修复破碎空间共计100.20 km2,集中分布于城南庄镇、龙泉关镇、阜平镇;(3)综合分析识别出的各类型生态修复关键区域的空间分布特征以及土地利用现状,提出相应的修复策略。可为阜平县国土空间生态系统修复及其健康发展提供参考意义。
Ecological restoration of territorial space is of great significance for ensuring national ecological security, but the current research on identifying and restoring key areas of territorial space ecosystem from a high degree of overall connectivity is still lacking. In order to fully identify the key areas of land and space ecological restoration in Fuping County, this study used the granularity inverse method, the habitat quality module in the Invest model, the MCR model and the linkage mapper analysis to finally determine the key areas for the ecological restoration of the land and space mainly including ecological pinch points to be repaired, ecological obstacle points to be repaired, and ecological break points to be repaired in Fuping County through the method of constructing the ecological security pattern of the land and space. The results show that:(1)Fuping County has a total ecological source area of 518.35 km2 including forestland and water area; ecological corridor totals 481.85 km;(2)by constructing an ecological pattern, 28 ecological pinch areas to be restored, 66 ecological obstacles to be repaired and 23 ecological breakpoints to be repaired were diagnosed; the broken space to be repaired totals 100.20 km2, which concentrates in Chengnanzhuang Town, Longquanguan Town, and Fuping Town;(3)the spatial distribution characteristics and land use status of the key areas of various types of ecological restoration were identified by comprehensive analysis, and corresponding restoration strategies were proposed, which can provide reference significance for the restoration and healthy development of the land space ecosystem in Fuping County.
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