自然资源学报 ›› 2020, Vol. 35 ›› Issue (5): 1109-1118.doi: 10.31497/zrzyxb.20200508

• 研究论文 • 上一篇    下一篇

基于土地利用与景观格局的生态保护红线生态系统健康评价方法——以南京市为例

燕守广1,2, 李辉1, 李海东1, 张银龙2   

  1. 1.生态环境部南京环境科学研究所,南京 210042;
    2.南京林业大学生物与环境学院,南京 210037
  • 收稿日期:2019-03-04 出版日期:2020-05-28 发布日期:2020-05-28
  • 通讯作者: 张银龙(1963- ),男,浙江绍兴人,博士,教授,研究方向为环境生态学。E-mail: ecoenvylz@163.com
  • 作者简介:燕守广(1975- ),男,江苏沛县人,硕士,副研究员,研究方向为区域生态安全。E-mail: ysg@nies.org
  • 基金资助:
    中央级公益性科研院所基本科研业务专项(GYZX190101); 国家重点研发计划项目(2018YFD1100104)

Ecosystem health assessment method of eco-redline based on land use and landscape pattern in Nanjing

YAN Shou-guang1,2, LI Hui1, LI Hai-dong1, ZHANG Yin-long2   

  1. 1. Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China;
    2. College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
  • Received:2019-03-04 Online:2020-05-28 Published:2020-05-28

摘要: 生态保护红线是生态功能极其重要或生态环境极为敏感/脆弱的区域,是生态保护的核心区域。以南京市生态保护红线为研究对象,基于2000年、2005年、2010年和2015年四期土地利用/覆被和遥感影像等数据资料,对生态保护红线的生态系统健康进行了评价。结果显示:(1)2015年南京市生态保护红线内不同类型土地利用面积由大到小依次为:林地、耕地、水域、人工表面、湿地和草地,其中林地面积最大并逐年增长,耕地面积逐年减少;(2)2000—2015年南京市生态保护红线生态系统健康指数平均值为53.83,生态保护红线的生态系统健康指数处于亚健康水平,并呈现缓慢增长的趋势;(3)陆域生态系统,特别是森林植被覆盖度较大的区域,生态系统健康指数较高,相反,水域生态系统的生态系统健康指数相对较低。

关键词: 生态保护红线, 土地利用, 生态系统服务, 景观格局, 人类胁迫, 生态系统健康评价

Abstract: Ecological conservation redline (eco-redline), the region with special and important ecological functions in the ecological space, must be strictly protected. According to the theory of ecology, only in a well-structured and healthy ecosystem, can the ecological function be brought into full play and the ecological security be guaranteed. Therefore, the ecosystem health of eco-redline is the basis of maintaining regional ecological security. Based on the data of land use/cover and remote sensing images in years of 2000, 2005, 2010 and 2015, this paper evaluated the ecosystem health of the eco-redline in Nanjing from five aspects: vigor, organization, resilience, ecosystem service function and anthropogenic stress. The results show that: (1) The areas of forest land, farmland, water bodies, construction land, wetland and grassland in eco-redline in the study area were 511.74 km2, 456.96 km2, 432.58 km2, 118.0 km2, 32.79 km2 and 1.56 km2, respectively. The area of forest land continued to increase, while that of farmland decreased gradually. (2) From 2000 to 2015, the average ecosystem health index of eco-redline in Nanjing was 53.83, above the sub-health level, and showing a slow growth trend. (3) The ecosystem health index of terrestrial ecosystem was higher, especially in the areas with large forest vegetation coverage, compared with aquatic ecosystem.

Key words: ecological conservation redline, ecosystem health assessment, landscape pattern, ecosystem service, land use, anthropogenic stress