巴西亚马逊的木材量被高估了:为什么不能在热带森林管理中使用通用数量预测方法呢?
Rodrigo Montezano Cardoso1, Eder Pereira Miguel1, Hallefy Junio de Souza1
1Faculdade de Tecnologia, Departamento de Engenharia Florestal, Universidade de Brasília, Campus Darcy Ribeiro Asa Norte, Brasília, DF, 70910-900, Brazil.
Journal of environmental management
|November 28, 2023
概括
目前在亚马逊地区的森林库存方法高估了木材数量,阻碍了可持续的森林管理. 准确的量化对于全球木材利用和防止非法开采至关重要.
科学领域:
- 林业科学 林业科学
- 生态生态学 生态生态学
- 可持续的资源管理可持续的资源管理
背景情况:
- 准确量化可销售木材的数量对于全球利用来自亚马逊物种的木材至关重要.
- 缺乏足够的木材量估计方法,其中一些自20世纪50年代以来仍被巴西政府机构强制使用,在亚马逊地区普遍存在.
- 亚马逊多样化的森林结构需要精确,最新的木材量化方法,以实现有效的森林管理.
研究的目的:
- 在亚马逊可持续森林管理特许权中,仔细检查实际采伐的可销售木材数量和森林库存估计之间的差异.
- 评估林业公司目前使用的采伐前木材量估计方法的准确性.
- 评估不准确的数量估计对可持续森林管理和非法木材生产活动的影响.
主要方法:
- 利用混合效应模型分析不同品种和森林地区的库存和采伐量之间的关系.
- 使用同等性测试来比较采伐前和采伐后的木材数量.
- 计算的平方根平均误差和百分比偏差,以量化可销售量估计的准确性.
主要成果:
- 通过100%的森林库存,在所有属和管理区域观察到可销售木材数量的持续高估.
- 在清单和收获量之间发现了显著的差异,只有22%的评估群体显示了同等性.
- 目前的采摘前量估计方法在支持亚马逊森林的可持续森林管理方面显然不准确.
结论:
- 在亚马逊可持续森林管理中,现有的木材量估计实践是不够的.
- 不准确的估计可能会破坏可持续的做法,并可能促进非法采伐和有组织犯罪.
- 对于负责任的亚马逊森林管理,迫切需要采用精确和最新的量化方法.
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