摘要
自然生态适宜性评价是城市开发限度的重要评判依据。选取中南丘陵地区浏阳市为例,借助市域土地利用景观类型图,使用GIS空间分析方法进行单因子生态适宜性评价,借助熵权法确定因子权重并进行叠加分析,获取浏阳市自然生态适宜性综合评价,并针对评价结果提出生态源地、生态廊道、生态节点的生态格局设计策略。结果表明:浏阳市市域范围内中、高生态适宜区主要分布于市域西部、西南部和中部,低适宜区和不适宜区主要分布在市域范围北部和东部,西南部存在部分生态低适宜区和不适宜区。同时确定了生态源地、廊道、节点在空间中的分布,提出源地保护、廊道交叉、节点分级的生态设施布局设计策略。
Natural ecological suitability evaluation is an important evaluation part of urban development limits.The landscape type map of urban land use in Liuyang City,Hunan Province is selected,and the G IS spatial analysis method is used to evaluate the single factor land suitability.Then the entropy weight method is used to determine the factor weight and the superposition analysis is carried out to obtain the comprehensive evaluation of natural ecological suitability of Liuyang City.According to the evaluation results,the layout design strategy of ecological source,ecological corridor and ecological node is proposed.It is found that the medium and high suitable construction areas in the urban area of Liuyang City are mainly distributed in the western,southwest and central parts of the city.The low suitable areas and unsuitable areas are mainly distributed in the north and east of the city area,and some low-suitable areas in the southwest are not suitable area.Meanwhile,the distribution of ecological source areas,corridors,and nodes in space is determined,and ecological pattern design strategies for source area protection,corridor crossing,and node classification are proposed.
作者
翟端强
ZHAI Duan-qiang(College of Architecture and Urban Planning,Tongji University,Shanghai 200082,China)
出处
《建筑节能》
CAS
2020年第8期107-111,共5页
BUILDING ENERGY EFFICIENCY
关键词
中南地区
生态适宜性
单因子
综合评价
生态格局
设计策略
Central South China
ecological suitability
single factor
comprehensive evaluation
ecological pattern
design strategy
作者简介
翟端强(1992),男,安徽宿州人,同济大学建筑与城市规划学院在读博士研究生,研究方向:城乡交通和市政基础设施规划(zhaiduanqiang@tongji.edu.cn)。
