摘要
以洞庭湖区为研究对象,在3S技术支持下,利用生态系统服务功能量评估法、生物多样性综合指数评价法及形态空间格局分析法对绿地生态关键区进行综合识别及特征分析。结果表明:洞庭湖区绿地生态关键区空间分布不均衡,其主要分布在研究区的西北部、西南部、东部、中部;由林地、灌丛、园地、草地、水域构成,其中林地面积为8415.18 km^2,灌丛面积为3410.31 km^2,水域面积为1922.27 km^2,这三者面积之和为绿地生态关键区总面积的95.90%,为研究区总面积的30.32%;关键区中的林地与灌丛的平均海拔高度分别为371.6、402.6 m,主要位于研究区内的山区,生物资源丰富;关键区中的水域平均海拔高度为33.5 m,主要为研究区中部的洞庭湖湿地,其周围的平原区域几乎无关键斑块分布,生态风险较高。研究结果能为洞庭湖区国土空间规划、绿地生态网络的构建提供参考。
Taking Dongting Lake region as an example,with the support of 3S technology,identified the key areas of green space ecological network and analyzed their features with the methods of comprehensive evaluation of ecosystem service,comprehensive evaluation of biodiversity index and morphological spatial pattern analysis.The results showed that the spatial distribution of the key green space ecological areas in Dongting Lake region was unbalanced.They were mainly distributed in the northwest,southwest,east and middle of the study region.It consisted of forest land,shrub land,orchard land,grass land and water areas.The area of forest land,shrub land and water areas was 8415.18,3410.31 km^2 and 1922.27 km^2 respectively,the sum of the 3 areas accounted for 95.9%of the key areas,and 30.32%of the total area of the study region.The average altitude of forest land and shrub land was 371.6 m and 402.6 m respectively,which were mainly located in the mountainous area and rich in biological resources.The average altitude of the water area was 33.5 m,which was mainly made up Dongting Lake wetlands in the middle of the study region.There were almost no key patches in the surrounded plain region,the ecological risk of this region was high.The results can provide references and scientific instructions for the spatial planning of national land and the building of green space ecological network in Dongting Lake region.
作者
李晟
李涛
彭重华
黄宗胜
齐增湘
Li Sheng;Li Tao;Peng Zhonghua;Huang Zongsheng;Qi Zengxiang(College of Landscape Architecture,Central South University of Forestry and Technology,Changsha Hunan 410004,China;School of Architecture,University of South China,Hengyang Hunan 421001,China;Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;School of Architecture and Urban Planning,Guizhou University,Guiyang Guizhou 550002,China)
出处
《西南林业大学学报（自然科学）》
CAS
北大核心
2020年第6期48-57,共10页
Journal of Southwest Forestry University：Natural Sciences
基金
国家自然科学基金项目(51868008)资助
国家林业局“十三五”重点学科基金项目([2016]21)资助
湖南省自然科学基金项目(2018JJ3439)资助
湖南省健康城市工程技术研究中心(2019TP2073)资助。
关键词
生态系统
绿地
生态关键区
识别
特征
洞庭湖区
ecosystem
green space
ecologically key area
recognition
character
Dongting Lake region
