粤港澳大湾区道路基础设施对生态网络的影响

doi:10.13287/j.1001-9332.202406.025

应用生态学报 ›› 2024, Vol. 35 ›› Issue (6): 1653-1660.doi: 10.13287/j.1001-9332.202406.025

粤港澳大湾区道路基础设施对生态网络的影响

杨文越¹, 徐子豪¹, 叶泓妤¹, 李涛^2*

¹华南农业大学林学与风景园林学院, 广州 510642;
²陕西师范大学西北国土资源研究中心, 西安 710119

收稿日期:2023-12-12 接受日期:2024-04-30 出版日期:2024-06-18 发布日期:2024-12-18
通讯作者: ^*E-mail: taoli-2008@163.com
作者简介:杨文越, 男, 1988年生, 博士, 副教授, 硕导。主要从事城市交通与土地利用、绿地和生态系统等研究。E-mail: yangwenyue900780@163.com
基金资助:
广东省自然科学基金面上项目(2022A1515011259)和教育部人文社会科学研究项目(21YJC840032)

Impact of road infrastructure on ecological networks in the Guangdong-Hong Kong-Macao Greater Bay Area, China

YANG Wenyue¹, XU Zihao¹, YE Hongyu¹, LI Tao^2*

¹College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China;
²Northwest Land and Resource Research Center, Shannxi Normal University, Xi’an 710119, China

Received:2023-12-12 Accepted:2024-04-30 Online:2024-06-18 Published:2024-12-18

摘要/Abstract

摘要： 道路基础设施的建设导致野生动物栖息地生境退化,以及生态网络连通性和稳定性降低等问题。研究道路基础设施对野生动物生活和迁徙的影响,对区域野生动物保护和生态网络优化具有重要意义。本研究基于野生动物的出现点位数据,利用MaxEnt模型评估粤港澳大湾区道路基础设施对生境适宜性的影响,采用最小累计阻力模型构建生态网络并识别生态断裂点,同时,使用景观连通性指数与图论指数对比不同情景的生态网络连通性。结果表明: 研究区内部的铁路和高速公路对生境适宜性产生显著影响,造成野生动物栖息地适宜性降低;受道路基础设施的影响,生态源地破碎化加剧,生态廊道的通行阻力增加,生态网络的连通性和稳定性明显下降;共识别生态断裂点536处,集中分布于生态源地附近。研究结果可为粤港澳大湾区野生动物栖息地保护和生态网络连通性修复提供重要的科学参考。

关键词: 道路基础设施, 生态网络, 连通性, 野生动物栖息地, 粤港澳大湾区

Abstract: The construction of road infrastructure has resulted in the degradation of wildlife habitat and the decrease of ecological network connectivity and stability. Studying the impacts of road infrastructure on wildlife life and migration is significant for regional wildlife conservation and ecological network optimization. We assessed the impacts of road infrastructure on habitat suitability using the MaxEnt model based on wildlife occurrence point data in the Guangdong-Hong Kong-Macao Greater Bay Area. We constructed the ecological networks and identified ecological breakpoints using the minimum cumulative resistance model, and compared the ecological network connectivity of different scenarios with the landscape connectivity index and graph theory index. The results showed that railway and motorway significantly affected habitat suitability, causing a decrease in wildlife habitat suitability. Affected by road infrastructure, the fragmentation of ecological sources intensified, the resistance of ecological corridors increased, and the ecological network connectivity and stability significantly decreased. A total of 536 ecological breakpoints were identified, which were concentrated in the area adjacent to ecological sources. The results would provide important scientific references for wildlife habitat conservation and ecological restoration in the Guangdong-Hong Kong-Macao Greater Bay Area.

Key words: road infrastructure, ecological network, connectivity, wildlife habitat, Guangdong-Hong Kong-Macao Greater Bay Area

杨文越, 徐子豪, 叶泓妤, 李涛. 粤港澳大湾区道路基础设施对生态网络的影响[J]. 应用生态学报, 2024, 35(6): 1653-1660.

YANG Wenyue, XU Zihao, YE Hongyu, LI Tao. Impact of road infrastructure on ecological networks in the Guangdong-Hong Kong-Macao Greater Bay Area, China[J]. Chinese Journal of Applied Ecology, 2024, 35(6): 1653-1660.

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粤港澳大湾区道路基础设施对生态网络的影响

Impact of road infrastructure on ecological networks in the Guangdong-Hong Kong-Macao Greater Bay Area, China

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