商品边界在热带森林中扩张得更慢,那里有森林小农
Marie Pratzer1,2, Patrick Meyfroidt3,4, Maria Vallejos1,5,6
1Geography Department, Humboldt-University Berlin, Berlin 10099, Germany.
概括
商品农业扩张到热带森林加剧了与小农的土地竞争. 然而,森林小农的存在可以减轻森林砍伐,保护热带森林和生计.
科学领域:
- 热带生态 热带生态
- 土地利用变化科学 土地利用变化科学
- 保护科学 保护科学
背景情况:
- 商品农业扩张到热带森林造成了重大的社会生态影响.
- 资本化行为者与森林小农之间的相互作用是不太了解的,关于森林砍伐结果有两个假设:土地冲动与竞争.
- 干燥的查科和奇基塔诺森林是全球森林砍伐热点,需要进行调查.
研究的目的:
- 调查热带森林边界的资本化行为者和小农之间的空间相互作用.
- 测试关于森林砍伐驱动因素的土地冲动和竞争假设.
- 了解小农的存在如何影响干燥查科和奇基塔诺森林的森林砍伐动态.
主要方法:
- 使用土地系统表示,捕捉重叠的土地使用行为者.
- 综合卫星森林损失数据 (2000-2023) 与重建的土地系统变化.
- 采用贝叶斯回归框架来分析森林砍伐模式.
主要成果:
- 资本化农业主要扩展到森林依赖的小农和土著社区使用的地区,这表明土地竞争激烈.
- 发现森林小农的持续存在减轻了商品边界带来的森林砍伐压力.
- 森林中的小农和保护区都独立地保持了森林覆盖面,但它们的综合效应并没有增强保护.
结论:
- 农业企业和小农之间的互动是热带边境扩张中社会生态结果的关键决定因素.
- 对土地系统重叠的核算对于边境地区有效的研究和政策制定至关重要.
- 保护森林和支持传统生计需要细微的方法,考虑这些复杂的相互作用.
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