景观连接度的生态学意义及其应用  

The Ecological Significance and Application of Landscape Connectivity

作　　者：陈利顶[1] 傅伯杰[1] 

机构地区：[1]中国科学院生态环境研究中心,北京100085

出　　处：《生态学杂志》1996年第4期37-42,73,共7页Chinese Journal of Ecology

基　　金：国家自然科学基金

摘　　要：1 景观连接度的概念景观生态学主要研究景观中不同元素在空间上的结构、功能及其变化。景观连接度(connectivity),作为景观生态学研究主要内容之一,1984年由Merriam首次引用到景观生态学中,认为是测定景观生态过程的一种指标。通过这种生态过程,景观中一些生物亚群体相互影响、作用形成一种有机整体。Forman和Go-dron给出的景观连接度定义为:景观连接度是描述景观中廊道或基质在空间上如何连接和延续的一种测定指标。尽管上述定义略有不同,但连接度均被认为是描述亚景观单元相互联系、相互作用的一种景观现象。Landscape connectivity is a parameter which measures the ecological process by which the subpopulations of a landscape arc interconnected into a demographic functional unit. It is a landscape phenomenon which describes the relationships between landscape subunits. The landscape connectivity is different from the landscape connectedness which describes the characteristics of landscape pattern, the landscape connectivity mainly describes the function of landscape elements and their relationship, which can be measured by measuring the degree to which the landscape pattern facilitates or impedes movement among resource patches. The landscape connectivity is relative and abstract, which is changeable for different ecological process and studying objective. The emergence and application of connectivity in landscape study are very useful for biodivcrsity protection, biological resource management, landscape design and planning.

关 键 词：景观生态学 景观连接度 生态学 

分 类 号：P901[天文地球—自然地理学]