Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13978 |
Soils and topography control natural disturbance rates and thereby forest structure in a lowland tropical landscape | |
K.C. Cushman; Matteo Detto; Milton Garcí; a; Helene C. Muller-Landau | |
2022-02-06 | |
发表期刊 | Ecology Letters |
出版年 | 2022 |
英文摘要 | Tree mortality is a major control over tropical forest carbon stocks globally but the strength of associations between abiotic drivers and tree mortality within forested landscapes is poorly understood. Here, we used repeat drone photogrammetry across 1500 ha of forest in Central Panama over 5 years to quantify spatial variation in canopy disturbance rates and its predictors. We identified 11,153 canopy disturbances greater than 25 m2 in area, including treefalls, large branchfalls and standing dead trees, affecting 1.9% of area per year. Soil type, forest age and topography explained up to 46%–67% of disturbance rate variation at spatial grains of 58–64 ha, with higher rates in older forests, steeper slopes and local depressions. Furthermore, disturbance rates predicted the proportion of low canopy area across the landscape, and mean canopy height in old growth forests. Thus abiotic factors drive variation in disturbance rates and thereby forest structure at landscape scales. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/346013 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | K.C. Cushman,Matteo Detto,Milton Garcí,et al. Soils and topography control natural disturbance rates and thereby forest structure in a lowland tropical landscape[J]. Ecology Letters,2022. |
APA | K.C. Cushman,Matteo Detto,Milton Garcí,a,&Helene C. Muller-Landau.(2022).Soils and topography control natural disturbance rates and thereby forest structure in a lowland tropical landscape.Ecology Letters. |
MLA | K.C. Cushman,et al."Soils and topography control natural disturbance rates and thereby forest structure in a lowland tropical landscape".Ecology Letters (2022). |
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