Indices of landscape pattern
Indices of landscape pattern
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DOI：
10.1007/bf00162741
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发表时间：
1988-05-01
影响因子：
5.2
通讯作者：
Graham, R. L.
中科院分区：
文献类型：
--
作者：
O'Neill, R. V.;Krummel, J. R.;Graham, R. L.
景观生态学研究生态系统在空间上的格局。需要方法来量化与生态过程相关的空间格局的各个方面。本文从信息论和分形几何的观点出发，提出了三种模式指数。使用数字化地图，指数计算94个四合院覆盖美国东部大部分地区。这些指数是合理的相互独立，并捕捉景观格局的主要特点。的指数之一，分形维数，被证明是与人类操纵的景观程度。
Landscape ecology deals with the patterning of ecosystems in space. Methods are needed to quantify aspects of spatial pattern that can be correlated with ecological processes. The present paper develops three indices of pattern derived from information theory and fractal geometry. Using digitized maps, the indices are calculated for 94 quadrangles covering most of the eastern United States. The indices are shown to be reasonably independent of each other and to capture major features of landscape pattern. One of the indices, the fractal dimension, is shown to be correlated with the degree of human manipulation of the landscape.