墨西哥剩余云层森林的现状:景观发现和保护举措
Wesley Dáttilo1, Sergio A Cabrera-Cruz2, César A Gallo-Gómez2
1Red de Ecoetología, Instituto de Ecología AC, Xalapa, Veracruz, Mexico.
PeerJ
|October 28, 2024
概括
墨西哥 墨西哥 墨西哥 墨西哥
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 林业林业 林业 林业 林业
背景情况:
- 热带山地云林对于生物多样性和生态系统服务至关重要.
- 墨西哥经历了严重的森林砍伐,到1998年,它失去了约50%的云层森林.
- 墨西哥高森林砍伐率 (2001-2021) 需要对墨西哥云层森林进行最新评估.
研究的目的:
- 评估墨西哥云层森林当前的景观结构.
- 评估1999年云林多边形内剩余的混合森林覆盖面和碎片化情况.
- 通过分析景观因素,为保护规划提供信息.
主要方法:
- 利用北美土地变化监测系统数据对混合森林进行分类.
- 分析了墨西哥国家生物多样性使用和知识委员会 (CONABIO) 定义的云林多边形内2020年的土地覆盖面.
- 混合森林的量化面积,补丁数,有效网状尺寸,总边缘和形状.
主要成果:
- 混合森林现在覆盖了13个州49%的原始云林面积.
- 在109个多边形中,有8个没有剩下的混合森林.
- 剩余的森林高度碎片化 (例如. 140个补丁),具有较低的有效网大小 (80%) 和总边缘 (90%).
结论:
- 墨西哥剩余的云层森林非常脆弱和分散.
- 大多数云林多边形位于联邦保护区之外.
- 紧急的保护行动,包括息地保护,走廊,可持续实践和社区参与至关重要.
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