基于景观指数分析方法的城市生态绿网研究——以南通为例  

Research on Urban Ecological Green Net Based on Landscape Indices Analysis Method--Nantong as an Example

作　　者：马子羽 邓舒恬 夏添 陆佩华[1] MA Zi-yu(School of Geography Science,Nantong University,Jiangsu Nantong 226007,China)

机构地区：[1]南通大学地理科学学院,江苏南通226007 [2]南通大学杏林学院,江苏启东226236

出　　处：《国土与自然资源研究》2021年第3期35-37,共3页Territory & Natural Resources Study

基　　金：江苏省自然科学基金资助项目(BK20160415);江苏省高等学校大学生创新创业训练计划项目(201913993011Y)。

摘　　要：本文通过景观指数分析方法来探讨南通市城市生态绿网的现状并提出规划建议。首先,对众多的景观指数进行分类,并选择合适的景观指数,同时,划分出合理的土地利用类型。在此基础之上,利用ArcMap对研究区进行矢量化,然后将矢量数据转化为栅格数据,导入Fragstats进行运算处理。通过对指数的运算处理结果,对南通市区土地利用的现状进行分析。结果表明,南通市区的用地类型以农用地为主,建筑用地次之。公共绿地的面积较低,绿地覆盖面积不足;公共绿地斑块在空间分布上呈现破碎、分散,缺少大块绿地;公共绿地斑块的连接度差,生态廊道断裂。本文建议通过提升绿覆率、保留大绿地、开辟生态连结走廊、提升绿地生态质量等方式来改善城市生态绿网。This paper discusses the present situation of urban ecological green net in Nantong by the analysis of landscape indicesand puts forward some suggestions for planning.Firstly,it classifies a large number of landscape indices and selects several appropriate ones.At the same time,reasonable land use types are divided.On this basis,it uses ArcMap to vectorize the research area,then transforms the vector data into grid data,and inputs these datainto Fragstats for processing.Based on the analysis of these landscape indices and the actual situation of Nantong,this paper combines the present situation and practice of Nantong City,this paper draws the corresponding conclusions.The land use type in Nantong is mainly agricultural land,followed by construction land.The area of public green space is insufficient,the public green space patches are fragmented and scattered in space,lacking of large green space.The connectivity of public green patch is poor,which indicates that the ecological corridor is broken.This paper suggests to improve the urban ecological green net by increasing the green cover rate,retaining the large green space,opening up ecological link corridors,improving the ecological quality of the green space and so on.

关 键 词：景观指数 生态绿网 城市绿地 

分 类 号：TU984.1[建筑科学—城市规划与设计]