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在亚马逊热带森林中废弃的金矿土地的时间序列中,植物和植被结构的变化

Jorge Garate-Quispe^1,2,3, Ramiro Canahuire-Robles¹, Gabriel Alarcón-Aguirre¹

¹Universidad Nacional Amazónica de Madre Dios, Departamento Académico de Ingeniería Forestal y Medio Ambiente, Av. Jorge Chavez 1160, Puerto Maldonado, 17001, Peru.

|May 3, 2024

概括

秘鲁的森林恢复在秘鲁的森林恢复.

科学领域:

生态生态学生态生态学
恢复生态学恢复生态学
亚马逊的植物学

背景情况:

小规模的金矿开采在秘鲁的马德雷·德·迪奥斯造成了严重的森林破坏.
了解森林继承对于退化地区的生态恢复至关重要.
二次连续的动态根据干扰的类型和持续时间而有所不同.

研究的目的:

分析黄金开采后森林继承期间的植物和植被结构变化.
为了比较不同放弃期 (5,11年和23年) 的恢复率.
为在亚马逊矿山地区提供有效的生态恢复策略提供数据.

主要方法:

在跨越时间序列站点的20x60米地块中,树种 (DBH>1厘米) 的库存.
重要值的计算,有效物种数量 (0D,1D,2D) 和Chao-Jaccard相似性.
使用非尺度多维缩放和与PERMANOVA进行统计比较进行排序.

主要成果:

记录了129个树种;在早期和中期阶段之间,树木的组成,基底面积,高度和DBH存在显著差异.
森林恢复显示,随着时间的推移,基底面积增加,物种多样性和植物相似性增加.
开拓物种和贫血症综合征在后来的连续阶段下降;23年的种群更像11年的种群,而不是参考森林.

结论:

亚马逊采矿区的二级森林继承表明结构属性的快速恢复,但物种组成的恢复速度较慢.
23年后,树木密度的恢复达到参考森林的77%,而物种组成的恢复平均只有23%.
这些发现有助于为生态恢复选择物种,以加快秘鲁亚马逊地区退化地区的植被恢复.

关键词:

在ASGM中,ASGM是最重要的.玛德里·德·迪奥斯 (Madre de Dios) 是一个神圣的母亲.自然再生的自然再生.参考森林是指参考森林.二次继承是继承权的第二阶段.

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