ZHANG Wenjia,FU Yongyong,WANG Xiaojun.Construction of Ecological Security Pattern in Xinzhou City Based on Evaluation of Ecosystem Service Value[J].Research of Soil and Water Conservation,2023,30(04):355-364.[doi:10.13869/j.cnki.rswc.2023.04.008.]
基于生态系统服务价值评价的忻州市生态安全格局构建
- Title:
- Construction of Ecological Security Pattern in Xinzhou City Based on Evaluation of Ecosystem Service Value
- 文章编号:
- 1005-3409(2023)04-0355-10
- Keywords:
- ecological security pattern; ecosystem services value; morphological spatial analysis method; minimum cumulative resistance model
- 分类号:
- X171.4
- 文献标志码:
- A
- 摘要:
- [目的]准确识别生态保护的重要节点和区域,进而合理布局及建设生态廊道,维护生态系统可持续发展。[方法]以忻州市为例,基于生态源地-阻力面-生态网络的生态安全格局构建方法,通过生态系统服务价值评价及形态学空间学格局分析方法(MSPA)识别生态源地; 基于熵权法和多阻力因子构建阻力面; 运用电路理论模拟分析生态廊道和生态节点,确定生态修复的一些关键区域。[结果](1)研究区内含有生态源地59处,总面积为2 355 km2,呈现出东部集中,中西部分散的空间分布格局。(2)研究区共有生态廊道100条左右(总长度为1 637.58 km),生态夹点111处(总面积为3.16 km2)以及生态障碍点83处(总面积为48.7 km2),生态廊道按其重要程度呈现自内向外的环形分布,而生态夹点则主要散布在生态源区和廊道相互毗邻的区域。[结论]生态安全格局能够有效识别生态廊道以及生态修复的重要区域。在生态保护与恢复中,应将“保护廊道、修复夹点区域、剔除和完善障碍区域”作为总体治理策略。
- Abstract:
- [Objective] This study aims to accurately identify key nodes and regions of ecological protection, and to construct ecological corridors in a reasonable way for the sustainable development of the ecosystem. [Methods] Taking Xinzhou City as a case study, this research proposes an ecological security pattern construction method, which is based on the paradigm of ‘ecological source-resistance surface-ecological network'. The ecological source is identified by combining the evaluation of ecosystem service value and morphological spatial pattern analysis(MSPA). The resistance surface is constructed based on entropy weight method and multi-resistance factor. The circuit theory is used to simulate and analyze ecological corridor and ecological nodes. [Results](1)A total of 59 ecological sources covering an area of 2 355 km2 were identified in the study area, showing a spatial distribution pattern of eastern concentration and central and western dispersion.(2)Additionally, the study identified approximately 100 ecological corridors(with a total length of 1 637.58 km), 111 ecological pinch points(with a total area of 3.16 km2), and 83 ecological obstacle points(with a total area of 48.7 km2)in the study area. According to the important values, ecological corridors showed an annular distribution from inside to outside. And the ecological pinch points mainly distributed in the adjacent areas between the ecological source area and corridor. [Conclusion] Building an ecological security pattern can effectively identify the ecological corridor and the key areas for ecological restoration. In the process of ecological protection and restoration, ‘protecting corridors, repairing pinch areas, removing and improving obstacle areas' should be taken as a general strategy.
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备注/Memo
收稿日期:2022-06-05 修回日期:2022-06-19
资助项目:国家自然科学基金(42101404),浙江省农业遥感与信息技术重点研究实验室开放基金
第一作者:张纹嘉(1996—),女,山西忻州人,硕士研究生,研究方向为生态安全格局。E-mail:z1459657238@163.com
通信作者:付勇勇(1993—),男,山西太原人,博士,讲师,主要从事方向资源环境遥感、机器学习研究。E-mail:yyong_fu@zju.edu.cn