关于"前哥伦布植物化对亚马逊森林构成的持续影响"的评论
Crystal H McMichael1, Kenneth J Feeley2, Christopher W Dick3,4
1Department of Ecosystem and Landscape Dynamics, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands. c.n.h.mcmichael@uva.nl.
概括
而不是古老的树木化, 而是后哥伦布时期的活动, 最近的人类影响比哥伦布前的做法对当前森林构成更有影响.
科学领域:
- 生态学
- 环境历史
- 植物学
背景情况:
- 哥伦布前的树木化被认为影响了亚马逊森林的组成.
- 之前的研究认为,哥伦布之后人类活动对亚马逊植物的影响不那么显著.
研究的目的:
- 重新评估前哥伦布和后哥伦布人类活动对亚马逊森林构成的相对贡献.
- 突出最近人类行动对该地区植物的重大和持续影响.
主要方法:
- 历史土地使用数据的比较分析.
- 生态建模包括前哥伦布和后哥伦布的影响.
- 整个亚马逊地区的花观模式评估.
主要成果:
- 哥伦布之后的人类活动,包括农业和资源开采,比哥伦布前的化更有深远的影响.
- 观察到的花模式与哥伦布后土地使用的强度和持续时间有很强的相关性.
- 虽然哥伦布时代前的影响仍然存在, 但在过去的五个世纪里,
结论:
- 亚马逊森林目前的构成主要是哥伦布后人类活动的结果.
- 重新审视历史生态叙述对于理解当代环境模式至关重要.
- 未来的保护和管理战略必须考虑到近期人类影响的遗产.
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