生态学杂志2018，Vol.37Issue(8)：2453-2462,10.DOI:10.13292/j.1000-4890.201808.028
近20年粤港澳大湾区生态敏感性变化
The variation of ecological sensitivity in Guangdong-Hong Kong-Macao Greater Bay Area in recent 20 years
摘要
Abstract
Ecological sensitivity assessment, an important method to study the potential problems of regional ecology, plays an important role in regional ecological planning and management. In this study, we selected seven sensitive factors from the aspects of natural ecology, city expansion and ecological services, and established level index system of sensitive factors. We assessed ecological sensitivity of single factors and comprehensive factors using the analytic hierarchy process (AHP) under GIS platform. The results showed that: (1) From 1997 to 2007, the proportion of zones with non-sensitivity or low sensitivity increased by 3.91％, the proportion of moderate sensitive zone decreased by 0.57％, and the proportion of extreme sensitivity zone and high sensitivity zone decreased by 3. 31％, indicating an overall reduction in ecological sensitivity. (2) From2007 to 2017, the proportion of zones with non-sensitivity or low sensitivity increased by 2.38％, the proportion of moderate sensitivity area decreased by 3. 71％, and the proportion of extreme sensitivity zone and high sensitivity zone increased by 1. 32％, indicating an overall declining trend of ecological sensitivity. (3) High sensitivity areas were mainly distributed in woodlands and nature reserves in Zhaoqing, Huizhou, and Jiangmen. Ecosystems in these areas were vulnerable to disturbance, so protection should be strengthened. Low sensitivity areas were mainly distributed in Guangzhou, Shenzhen, Foshan and other central cities where ecosystems had good stability. These ecosystems can be reasonably exploited and utilized when their safety is guaranteed. Our results provide scientific basis for green sustainable development and environmental management in the Guangdong-Hong Kong-Macao Greater Bay Area.关键词
粤港澳大湾区/生态敏感性评价/时空变化/因子评价分析/层次分析(AHP)Key words
the Guangdong-Hong Kong-Macao Greater Bay Area/ecological sensitivity assessment/temporal and spatial variation/factor evaluation analysis/analytic hierarchy process (AHP)引用本文复制引用
甘琳,陈颖彪,吴志峰,千庆兰,郑子豪..近20年粤港澳大湾区生态敏感性变化[J].生态学杂志,2018,37(8):2453-2462,10.基金项目
广东省自然科学基金项目(2016A030313551) （2016A030313551）
国家自然科学基金项目(41771127) （41771127）
广东省国土资源科研专项(GDGTKJ2017001)资助 （GDGTKJ2017001）
