Knowledge Management System Of Institute Of Botany,CAS
| Global patterns and determinants of forest canopy height | |
Tao, Shengli1; Guo, Qinghua2 ; Li, Chao1; Wang, Zhiheng1; Fang, Jingyun1
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| 2016 | |
| 发表期刊 | ECOLOGY
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| ISSN | 0012-9658 |
| 卷号 | 97期号:12页码:3265-3270 |
| 摘要 | Forest canopy height is an important indicator of forest biomass, species diversity, and other ecosystem functions; however, the climatic determinants that underlie its global patterns have not been fully explored. Using satellite LiDAR-derived forest canopy heights and field measurements of the world's giant trees, combined with climate indices, we evaluated the global patterns and determinants of forest canopy height. The mean canopy height was highest in tropical regions, but tall forests (>50m) occur at various latitudes. Water availability, quantified by the difference between annual precipitation and annual potential evapotranspiration (P-PET), was the best predictor of global forest canopy height, which supports the hydraulic limitation hypothesis. However, in striking contrast with previous studies, the canopy height exhibited a hump-shaped curve along a gradient of P-PET: it initially increased, then peaked at approximately 680mm of P-PET, and finally declined, which suggests that excessive water supply negatively affects the canopy height. This trend held true across continents and forest types, and it was also validated using forest inventory data from China and the United States. Our findings provide new insights into the climatic controls of the world's giant trees and have important implications for forest management and improvement of forest growth models. |
| 关键词 | climatic indices forest canopy height geoscience laser altimeter system giant trees light detection and ranging potential evapotranspiration RH100 tallest tree water supply |
| 学科领域 | Ecology |
| DOI | 10.1002/ecy.1580 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | TREE HEIGHT ; GROWTH ; CLIMATE ; BIOMASS ; LIMITS ; PRECIPITATION ; PRODUCTIVITY ; DIVERSITY ; GRADIENT ; DROUGHT |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS记录号 | WOS:000389444800002 |
| 出版者 | WILEY-BLACKWELL |
| 文献子类 | Article |
| 出版地 | HOBOKEN |
| EISSN | 1939-9170 |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31321061, 31330012] ; National Basic Research Program of China on Global ChangeNational Basic Research Program of China [2010CB950600] |
| 作者邮箱 | jyfang@urban.pku.edu.cn |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/25092 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, Beijing 100871, Peoples R China 2.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tao, Shengli,Guo, Qinghua,Li, Chao,et al. Global patterns and determinants of forest canopy height[J]. ECOLOGY,2016,97(12):3265-3270. |
| APA | Tao, Shengli,Guo, Qinghua,Li, Chao,Wang, Zhiheng,&Fang, Jingyun.(2016).Global patterns and determinants of forest canopy height.ECOLOGY,97(12),3265-3270. |
| MLA | Tao, Shengli,et al."Global patterns and determinants of forest canopy height".ECOLOGY 97.12(2016):3265-3270. |
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| Ecology - 2016 - Tao（1865KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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