A CONCEPTUAL-FRAMEWORK FOR EVALUATING AND QUANTIFYING NATURALNESS

被引:119
作者
ANDERSON, JE
机构
[1] Department of Biological Sciences, Idaho State University, Pocatello, Idaho, 83209
关键词
D O I
10.1111/j.1523-1739.1991.tb00148.x
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
Naturalness is a scientific concept that can be evaluated and quantified. Intactness or integrity of ecosystems can be defined and assessed in similar ways. Three indices of naturalness are proposed: (1) the degree to which the system would change if humans were removed; (2) the amount of cultural energy required to maintain the functioning of the system as it currently exists; and (3) the complement of native species currently in an area compared with the suite of species in the area prior to settlement. These indices are complementary and provide a conceptual framework for evaluating naturalness. The latter two can be quantified.
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页码:347 / 352
页数:6
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