Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15227 |
Pantropical geography of lightning‐caused disturbance and its implications for tropical forests | |
Evan M. Gora; Jeffrey C. Burchfield; Helene C. Muller‐; Landau; Phillip M. Bitzer; Stephen P. Yanoviak | |
2020-07-08 | |
发表期刊 | Global Change Biology |
出版年 | 2020 |
英文摘要 | Lightning is a major agent of disturbance, but its ecological effects in the tropics are unquantified. Here we used ground and satellite sensors to quantify the geography of lightning strikes in terrestrial tropical ecosystems, and to evaluate whether spatial variation in lightning frequency is associated with variation in tropical forest structure and dynamics. Between 2013 and 2018, tropical terrestrial ecosystems received an average of 100.4 million lightning strikes per year, and the frequency of strikes was spatially autocorrelated at local‐to‐continental scales. Lightning strikes were more frequent in forests, savannas, and urban areas than in grasslands, shrublands, and croplands. Higher lightning frequency was positively associated with woody biomass turnover and negatively associated with aboveground biomass and the density of large trees (trees/ha) in forests across Africa, Asia, and the Americas. Extrapolating from the only tropical forest study that comprehensively assessed tree damage and mortality from lightning strikes, we estimate that lightning directly damages c. 832 million trees in tropical forests annually, of which c. 194 million die. The similarly high lightning frequency in tropical savannas suggests that lightning also influences savanna tree mortality rates and ecosystem processes. These patterns indicate that lightning‐caused disturbance plays a major and largely unappreciated role in pantropical ecosystem dynamics and global carbon cycling. |
领域 | 气候变化 ; 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/282671 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Evan M. Gora,Jeffrey C. Burchfield,Helene C. Muller‐,等. Pantropical geography of lightning‐caused disturbance and its implications for tropical forests[J]. Global Change Biology,2020. |
APA | Evan M. Gora,Jeffrey C. Burchfield,Helene C. Muller‐,Landau,Phillip M. Bitzer,&Stephen P. Yanoviak.(2020).Pantropical geography of lightning‐caused disturbance and its implications for tropical forests.Global Change Biology. |
MLA | Evan M. Gora,et al."Pantropical geography of lightning‐caused disturbance and its implications for tropical forests".Global Change Biology (2020). |
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