Reforestation amidst deforestation: Simultaneity and succession

被引:59
作者
Sloan, Sean [1 ]
机构
[1] Griffith Univ, Sch Environm, Brisbane, Qld 4111, Australia
来源
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS | 2008年 / 18卷 / 03期
关键词
Panama; Bayano; Darien; Forest transition; Reforestation; Deforestation; Tree plantation; Cattle ranching;
D O I
10.1016/j.gloenvcha.2008.04.009
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The forest-transition theory of expanding forest cover after prolonged periods of deforestation has typically examined forest regeneration apart from historic land-use patterns. In the Bayano-Darien agricultural frontier of Panama, this paper observes forest-cover expansion that is simultaneous to and successive of a preceding pattern of land-use/cover change characterized by expanding ranchland and depopulation. Landsat TM satellite-imagery analysis for 1990-2000, household land-use histories since 2000 and forest plantation records for 1992-2007 illustrate reforestation occurring alongside deforestation. The findings describe a land-cover change dynamic by which a nascent pathway of reforestation assumes the characteristics of antecedent pathways of deforestation. Large-scale commercial interests dominated forestation via plantation expansion, succeeding and consolidating ranchers as ranchers previously succeeded small-scale agriculturalists. Contrary to the forest-transition theory, off-farm employment and emigration did not encourage reforestation amongst ranchers. The drivers, nature, likelihood and limitations of a nascent forest transition appear somewhat determinable by antecedent pathways of deforestation. Refocusing on regional-scale antecedent pathways of land-use/cover change promises to expose a typology of forest transitions of varied potency. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:425 / 441
页数:17
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