基于“敏感性－重要性－连通性”框架的神木市生态网络规划

编号 lyqk011393

中文标题 基于“敏感性－重要性－连通性”框架的神木市生态网络规划

作者 张文婷  任巧慧  胡泳茵 

作者单位 长安大学建筑学院 西安 710061

期刊名称 中国城市林业 

年份 2024 

卷号 22

期号 1

栏目名称 专题:城市绿地生物多样性与生态系统服务 

中文摘要 构建生态网络对改善区域生态安全和推动城市可持续发展具有重要意义。文章基于“生态敏感性-生态系统服务重要性-景观连通性”综合评价结果识别生态源地,运用最小累积阻力模型和重力模型判定生态廊道,基于电路理论提取生态节点,形成点-线-面交汇的生态网络,并对神木市生态修复关键区域进行分级划定。结果表明:神木市生态源地共22个,面积达536.80 km²,多集中在东南部,平均dPC值为7.16,总体连通性不佳;判定出潜在生态廊道46条,廊道总长度365.39 km,多集中在东南部;提取出生态节点124个,包括生态夹点42个、生态障碍点59个、生态断裂点23个。依据生态网络规划结果,识别低质量生态空间,并划分为重点修复区、生态提升区、生态保育区;在此基础上提出源地、廊道、节点、低质量生态空间的分级管控策略,以期为其他生态脆弱型县域国土空间生态修复提供参考。

关键词 生态网络  生态敏感性  生态系统服务重要性  景观连通性  神木市 

英文标题 Ecological Network Planning in Shenmu City Based on the Framework of Sensitivity, Importance and Connectivity

作者英文名 Zhang Wenting, Ren Qiaohui, Hu Yongyin

单位英文名 School of Architecture, Chang'an University, Xi'an 710061, China

英文摘要 Constructing ecological networks is of important significance for improving regional ecological security and promoting sustainable urban development. The paper identifies ecological source areas based on the results of integrated evaluation of ecological sensitivity-importance of ecosystem services-landscape connectivity, applies the MCR model and Gravity model to determine ecological corridors, extracts ecological nodes based on circuit theory to form an ecological network where points, lines, and surfaces intersect, and classifies and demarcates the key areas for ecological restoration in Shenmu City. The results indicate that there are a total of 22 ecological source areas in Shenmu City, with the area of 536.80 km², mostly concentrated in the southeast. The average dPC value is 7.16, indicating poor overall connectivity. Totally, 46 potential ecological corridors are identified, with the length of 365.39 km, which are primarily concentrated in the southeast. Additionally, 124 ecological nodes are extracted, including 42 ecological pinch points, 59 ecological barriers, and 23 ecological ruptures. Based on the results of the ecological network planning, low-quality ecological spaces are recognized, which are further classified into key restoration areas, ecological enhancement areas, and ecological conservation areas. Subsequently, a hierarchical control strategy for source areas, corridors, nodes, and low-quality ecological spaces is proposed, aiming to provide references for the ecological restoration of other ecologically fragile counties.

英文关键词 ecological network;ecological sensitivity;importance of ecosystem services;landscape connectivity;Shenmu City

起始页码 53

截止页码 61

投稿时间 2023/12/29

作者简介 张文婷(1989-),女,博士,副教授,硕士生导师,研究方向为风景园林规划与设计。E-mail:zwt@chd.edu.cn

DOI 10.12169/zgcsly.2023.12.29.0001

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