Ecosystem as self-organizing critical systems

被引：32
|
作者：
Jorgensen, SE
Mejer, H
Nielsen, SN
机构：
[1] DFH, Inst A, Sect Environm Chem, DK-2100 Copenhagen O, Denmark
[2] Carl Bro Engn, Dept Environm & Energy, DK-2600 Glostrup, Denmark
来源：
ECOLOGICAL MODELLING | 1998年 / 111卷 / 2-3期
关键词：
self-organizing; criticality; ecosystems; structural dynamic models; power law; exergy;
D O I：
10.1016/S0304-3800(98)00104-5
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
The paper examines the following properties which are often associated with self-organizing critical systems: (1) Is the relationship between body size and abundance for species in ecosystem a power law? (2) Wilt the frequency with which observed changes exceeds a given change versus the change follow a power law? (3) Will the typical frequencies of 'avalanches' follow a power law? (4) Can the occurrences of 'avalanches' according to a well-examined ecosystem model be used to explain the underlying causality? As the examinations give the clear answer 'yes' to all four questions, and as many other properties of ecosystems also point towards ecosystems as self-organising critical systems, it seems possible to support the hypothesis, that ecosystems are self-organizing systems. (C) 1998 Elsevier Science B.V. All rights reserved.
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页码：261 / 268
页数：8
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