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重庆市都市区绿地景观的连通性
引用本文:熊春妮,魏虹,明娟.重庆市都市区绿地景观的连通性[J].生态学报,2008,28(5):2237-2237~2244.
作者姓名:熊春妮  魏虹  明娟
作者单位:西南大学生命科学学院,三峡库区生态环境教育部重点实验室,重庆市三峡库区植物生态与资源重点实验室,重庆,400715
摘    要:城市绿地具有重要的生态功能和社会经济价值,是衡量城市生态可持续发展的重要标准.其中,连通性是维持景观功能的关键因素之一.以重庆市都市区为研究对象,结合TM遥感影像图,通过整体连通性指数(IIC)、可能连通性指数(PC)和景观中斑块对连通性的重要值对该区绿地景观的连通性进行了分析.研究结果表明,都市区绿地景观主要由少数巨型斑块和大量小型斑块组成.绿地景观整体连通性较差,这与绿地景观组成密切相关.对于绿地景观的连通性而言,巨型斑块的重要值最大,但小型斑块的重要性也不容忽视.对绿地景观连通性重要值最大的一些斑块主要分布于都市区的几大山脉上,这些斑块是城市绿地规划和保护的首要考虑的对象.基于研究结果,建议在重庆市都市区进行绿地规划时,优先考虑对重要斑块的保护,同时要考虑在巨型斑块之间构建小斑块,使其形成连通性廊道,提高绿地景观的连通性.

关 键 词:绿地景观  连通性  整体连通性指数(IIC)  可能连通性指数(PC)  斑块重要值  重庆市  都市区  绿地景观  连通性  Chongqing  City  region  metropolitan  landscape  connectivity  廊道  的保护  绿地规划  山脉  分布  相关  组成  结果  分析  重要值  斑块
文章编号:1000-0933(2008)05-2237-08
收稿时间:2007/11/27 0:00:00
修稿时间:2007年11月27

Analysis of connectivity on greenland landscape in metropolitan region of Chongqing City

XIONG Chun-Ni, WEI Hong, LAN Ming-Juan.

Analysis of connectivity on greenland landscape in metropolitan region of Chongqing City

[J].Acta Ecologica Sinica,2008,28(5):2237-2237~2244.
Authors:XIONG Chun-Ni   WEI Hong   LAN Ming-Juan
Institution:Key Laboratory of Eco-environments in Three Gorges Reservoir Region(Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region , School of Life Science , Southwest University , Chongqing 400715 , China 
Abstract:Urban greenland provides important socio-economic value and performs ecological functions, and it also is an important measurement of the sustainable development of cities in ecology. Connectivity is one of major indicator for maintenance of ecological functions in landscape. The connectivity of greenland landscape in metropolitan region of Chongqing City was studied based on the theory and method of landscape ecology, combined with Landsat TM remote sensing image. The integral index of connectivity (IIC), probability of connectivity (PC) and the important values of patches in greenland landscape were computed by different distance thresholds, The most important patches were found from the greenland landscape used Geographic Information System (GIS). The results showed that the greenland landscape is consisted of few large patches and many small patches. The connectivity of greenland landscape in Chongqing City is not so well, which was directly related to the construction of the greenland landscape. The most important patches located in the main mountains in the research region. The values of large patches for Connectivity of greenland landscape are more than others size patches, we suggest that it will make great contribution to establish large patches in planning of greenland landscape. However, protecting small patches should be addressed. The better way, which to increase the greenland value in urban ecological and environment management is to increase the connectivity of patches, both small and large patches when planning greenland landscape in metropolitan region of Chongiqng City.
Keywords:greenland landscape  connectivity  Integral Index of Connectivity(IIC)  probability of connectivity(PC)  important value of patch
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