The role of pasture and soybean in deforestation of the Brazilian Amazon
The role of pasture and soybean in deforestation of the Brazilian Amazon
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DOI：
10.1088/1748-9326/5/2/024002
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发表时间：
2010-04-01
影响因子：
6.7
通讯作者：
Coomes, Oliver T.
中科院分区：
文献类型：
--
作者：
Barona, Elizabeth;Ramankutty, Navin;Coomes, Oliver T.
巴西亚马逊森林砍伐的动态是复杂的。越来越多的辩论认为，森林砍伐在多大程度上是巴西大豆产业扩张的结果。最近的分析表明，森林砍伐是由养牛业的扩张而不是大豆造成的。大豆似乎正在取代以前被砍伐的土地和/或以前被放牧的土地。在这项研究中，我们使用2000年至2006年整个法律的亚马逊地区的农业和森林砍伐区的生态系统水平的统计数据，以研究森林砍伐和牧场和大豆面积变化之间的空间格局和统计关系。我们的研究结果支持以前的研究表明，森林砍伐主要是牧场扩张的结果。然而，我们也发现支持的假设，在马托格罗索州大豆的增加已经取代牧场更北，导致其他地方的森林砍伐。尽管还没有结论性的结论，但我们的研究结果表明，围绕亚马逊森林砍伐驱动因素的争论还没有结束，大豆和森林砍伐之间可能存在间接的因果关系，需要进一步探索。未来的研究应更密切地研究土地面积，价格和政策之间的相互联系如何影响大豆和森林砍伐之间的关系，以便为“流离失所毁林”做出决定性的案例。
The dynamics of deforestation in the Brazilian Amazon are complex. A growing debate considers the extent to which deforestation is a result of the expansion of the Brazilian soy industry. Most recent analyses suggest that deforestation is driven by the expansion of cattle ranching, rather than soy. Soy seems to be replacing previously deforested land and/or land previously under pasture. In this study, we use municipality-level statistics on agricultural and deforested areas across the Legal Amazon from 2000 to 2006 to examine the spatial patterns and statistical relationships between deforestation and changes in pasture and soybean areas. Our results support previous studies that showed that deforestation is predominantly a result of pasture expansion. However, we also find support for the hypothesis that an increase of soy in Mato Grosso has displaced pasture further north, leading to deforestation elsewhere. Although not conclusive, our findings suggest that the debate surrounding the drivers of Amazon deforestation is not over, and that indirect causal links between soy and deforestation may exist that need further exploration. Future research should examine more closely how interlinkages between land area, prices, and policies influence the relationship between soy and deforestation, in order to make a conclusive case for 'displacement deforestation'.