A HIERARCHICAL NEUTRAL MODEL FOR LANDSCAPE ANALYSIS

被引：105

作者：

ONEILL, RV

GARDNER, RH

TURNER, MG

机构：

[1] Environmental Sciences Divison, Oak Ridge National Laboratory, Oak Ridge, 37831-6038, TN

来源：

LANDSCAPE ECOLOGY | 1992年 / 7卷 / 01期

关键词：

HIERARCHY THEORY; PERCOLATION THEORY; CURDLING;

D O I：

10.1007/BF02573957

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Empirical studies have revealed scaled structure on a variety of landscapes. Understanding processes that produce these structures requires neutral models with hierarchical structure. The present study presents a method for generating random maps possessing a variety of hierarchical structures. The properties of these scaled landscapes are analyzed and compared to patterns on totally random, unstructured landscapes. Hierarchical structure permits percolation (i.e., continuous habitat spanning the landscape) under a greater variety of conditions than found on totally random landscapes. Habitat clusters on structured maps tend to have smaller perimeters. The clusters tend to be less clumped on sparsely occupied landscapes and more clumped in densely occupied conditions. Hierarchical structure changes the expected spatial properties of the landscape, indicating a strong need for this new generation of neutral models.

引用

页码：55 / 61

页数：7

共 21 条

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