沿海山区输电线路建设影响区域生态安全吗?——以福建棠园输电工程为例
Does the Construction of a Power Transmission Line(PTL)in a Coastal Mountainous Area Affect the Regional Ecological Security?—Taking Fujian Tangyuan PTL as an Example
郑翠纯 1李小梅 1范智鹏 1李熙2
作者信息
- 1. 福建师范大学环境与资源学院/碳中和现代产业学院,福州 350007
- 2. 国网福建省电力有限公司电力科学研究院,福州 350007
- 折叠
摘要
生态安全和生态安全格局是区域生态保护研究的热点议题,沿海山区由于降水量较大、地形复杂以及受频繁台风影响,输电线路工程建设是否影响区域生态安全?本文以福建棠园输电工程区域为例,以区域生态安全格局即生态"源地-廊道-节点"为研究对象,应用 MSPA、景观连通性指数、MCR 和重力模型,研究福建棠园输电工程施工前、施工中和施工后区域及线路 2 km生态评价区的生态安全格局变化,讨论输电工程建设的生态安全影响,获得输电工程的生态安全重点保护区.结果表明:在区域尺度上,输电线路施工前、施工中和施工后生态源地面积占区域面积分别为 14.21%、11.79%和 14.11%,重要生态廊道分别为 20、21和 16条,生态节点分别有 168、123和 227个;在生态评价区(即输电线路 2 km生态影响区),输电线路施工前、施工中和施工后生态源地面积分别为 39.78 km2、27.44 km2 和 29.88 km2,生态廊道总长分别为 50.78 km、44.36 km和 67.18 km,生态节点分别有 13、7和 25个;在区域和生态评价区两个尺度,输电线路施工期内,生态安全格局空间发生位移,生态"源地-廊道"数量减少,施工后逐步恢复.输电线路工程的生态安全影响主要发生在线路两侧向外各延伸 2 km的生态评价区.研究结果为线性工程项目的生态评价提供参考,也为输电线路建设的生态安全保护提供了切实科学指导.
Abstract
Ecological security and its patterns are hot topics for regional ecological protection.In the subtropical coast mountainous area with high precipitation,complex topography,and frequent typhoons,does the construction of a Power Transmission Line(PTL)affect local ecological security?Taking Fujian Tangyuan PTL as an example,this study examined changes in the Ecological Security Pattern(ESP)at regional and local scales by using Mor-phological Spatial Pattern Analysis(MSPA),Minimum Cumulative Resistance(MCR)and the Gravity model.The results showed that within the PTL timelines(before,during and after building the PTL),the ecological source area occupied 14.21%,11.79%and 14.11%of the whole research region;while the important eco-corridors numbered 20,21 and 16,respectively;and the eco-nodes numbered 168,123 and 227,respectively.At the local scale,in the PTL buffer space(2 km from the PTL on either side,i.e.,the potential ecological impact zone)within the timelines(before-during-after building the PTL),the ecological source area occupied 39.78 km2,27.44 km2 and 29.88 km2,respectively,and the eco-corridor lengths were 50.78 km,44.36 km and 67.18 km with 13,7 and 25 eco-nodes,respectively.Clearly,during the building of the PTL,the ecological"source-corridor"decreased at first and gradually recovered after the construction,while the challenge to the ecological safety from the PTL occurred at the local scale.The results of this study provide a method for evaluating the ecological integrity disturbance by linear projects and scientific protection strategies are proposed.
关键词
输电工程/生态安全格局/MSPA/MCR模型Key words
Power Transmission Line(PTL)/Ecological Security Pattern(ESP)/Morphological Spatial Pattern Analysis(MSPA)/Minimum Cumulative Resistance(MCR)引用本文复制引用
基金项目
Scientific and Technological Project of State Grid Fujian Electric Power Co.,Ltd(52130420002F)
出版年
2024
NETL
NSTL
维普
万方数据