Irreversible ecosystem change, species competition, and shifting cultivation

被引：25

作者：

Albers, HJ

Goldbach, MJ

机构：

[1] QE, Resources Future, Washington, DC 20036 USA

[2] Stanford Univ, Dept Management Sci & Engn, Stanford, CA 94305 USA

来源：

RESOURCE AND ENERGY ECONOMICS | 2000年 / 22卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

swidden; fallow; soil fertility; agricultural development;

D O I：

10.1016/S0928-7655(00)00034-8

中图分类号：

F [经济];

学科分类号：

02 ;

摘要：

This paper explores the impact of resource use on species competition and the resulting effect on the regeneration of a renewable resource. In the case of shifting cultivation, agricultural activities alter the subsequent recovery of biomass during fallow upon which agricultural fertility depends. This paper introduces a model of agriculture's impact on species competition and discontinuous ecological change, identifies conditions under which it is economically efficient to induce an ecological irreversibility, and compares these cases for farmers with and without land tenure security. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：261 / 280

页数：20

共 35 条

[1]

ABER JD, 1991, TERRESTRIAL ECOSYSTE, P429

[2]

Albers H. J., 1996, Environmental and Resource Economics, V8, P39

[3] Modeling ecological constraints on tropical forest management: Spatial interdependence, irreversibility, and uncertainty [J].