撒哈拉以南非洲森林砍伐的困惑

A. Yalew
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引用次数: 6

摘要

森林砍伐一直是撒哈拉以南非洲研究的一个复杂现象。该地区的年平均毁林率远远高于世界平均水平。迄今为止,该地区森林砍伐的原因和驱动力一直存在争议。这篇论文的动机就是这种争论。它试图测试关于森林砍伐原因的假设是否可以为撒哈拉以南非洲的问题提供答案。它使用了该地区48个国家的平均跨国数据。数据是从国际来源检索的。计算了两个森林砍伐指标和五个经常被引用的森林砍伐原因之间的斯皮尔曼等级相关系数。本文还讨论了森林公有制的作用、林产品和农产品在出口总额中的份额以及森林法颁布的年份。然而,它没有发现明确、有力和系统的模式来证明人口密度、农村人口、农村贫困、工业采伐出口、经济增长、森林法颁布晚以及森林公有制是该地区森林砍伐的根本原因。卢旺达和津巴布韦的林地趋势生动地说明了这一发现。因此,未来该地区与该主题相关的研究应侧重于次国家级面板数据。
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The Perplex of Deforestation in sub-Saharan Africa
Deforestation has been a complex phenomenon to study in sub-Saharan Africa. The average annual deforestation rate in the region is by far higher than the world average. What causes and drives deforestation in the region are debated to date. The present paper is motivated by this debate. It attempts to test whether the maintained hypotheses on the causes of deforestation can give answer to the problem in sub-Saharan Africa. It used average cross-national data of forty eight countries in the region. The data are retrieved from international sources. The Spearman’s rank correlation coefficients between two deforestation indicators and five often-cited causes of deforestation were computed. The role of public forest ownership, share of forest and agricultural products in total exports, and the year of forest laws enacted are also discussed. However, it finds no clear, strong, and systematic pattern to argue that population density, rural population, rural poverty, industrial logging for exports, economic growth, late enactment of forest laws, and public ownership of forests are underlying causes of deforestation in the region. The trends of forestland in Rwanda and Zimbabwe vividly present the finding. Therefore, future studies related to the topic in the region shall focus on sub-national panel data.
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