哈尔滨市绿地景观格局与过程的连通性和完整性

CONTINUITY AND INTEGRITY OF URBAN GREENBELT LANDSCAPE PATTERN AND PROCESS

城市绿地景观的空间结构和生态过程的研究是城市景观生态系统研究的重要内容和基本特色之一 .应用景观生态学原理 ,在遥感和地理信息系统 (GIS)技术支持下对哈尔滨城市现有景观生态格局进行了研究和分析 ,认为主要存在以下景观生态问题 :景观生态连通性低 ;景观结构单一 ;绿地面积少 ,且绿地空间分布不均衡 .在现有景观格局基础上 ,哈尔滨市可望通过以下几个方面改善景观生态过程和格局的连续性 :在景观生态战略点开辟新的绿色斑块 ;建立和完善生态化的水系廊道网络 ;建立城效绿化网络 ,连接绿地系统的点、线、面 ;增加城市绿地系统中的景观异质性和多样性 ;在城市扩展中维护景观生态过程与格局的连续性 .图 4表 4参

The study on urban green land landscape is essential for quantifying and improving the quality of a city′s environment. In this paper,landscape ecological pattern is analyzed with RS & GIS technology in Harbin. It is believed that there are some landscape ecological problems:landscape ecological connectivity is low; landscape structure is simple; green area is small and moreover, spatial distribution of green land is unbalanced. Based on present landscape pattern, some measures should be taken to improve landscape ecological process and continuity, to set up some green patches at landscape ecological strategic points, to establish and perfect ecological networks of water corridors,to establish urban-rural green networks and connect points, lines and surfaces of green system, increase landscape heterogeneity and diversity of green system in urban regions, and to maintain continuity of landscape ecological process and pattern in the course of city expansion. Fig 4, Tab 4, Ref 19