DOI: 10.1111/ele.13531
论文题名: Geomorphic transience moderates topographic controls on tropical canopy foliar traits
作者: Chadwick K.D. ; Asner G.P.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期: 8 起始页码: 1276
结束页码: 1286
语种: 英语
中文关键词: Foliar traits
; imaging spectroscopy
; landscape evolution
; rock derived nutrients
英文关键词: Borneo
; ecosystem
; forest
; tree
; tropic climate
; Borneo
; Ecosystem
; Forests
; Trees
; Tropical Climate
英文摘要: Tropical ecosystems that exist on mountainous terrain harbour enormous species and functional diversity. In addition, the morphology of these complex landscapes is dynamic. Stream channels respond to mountain uplift by eroding into rising rock bodies. Many local factors determine whether channels are actively downcutting, in relative steady-state, or aggrading. It is possible to assess the trajectory of catchment-level landscape evolution utilising lidar-based models, but the effect of these trajectories on biogeochemical gradients and organisation of canopy traits across climatic and geochemical conditions remain uncertain. We use canopy trait maps to assess how variable erosion rate within catchments influence hillslope controls on canopy traits across Mt. Kinabalu, Borneo. While foliar nutrient content generally increased along hillslopes, these relationships were moderated by catchment responses to changing erosion pressure, with active downcutting associated with greater turnover in canopy traits along hillslopes. These results provide an understanding of geomorphic process controls on forest functional diversity. © 2020 John Wiley & Sons Ltd/CNRS Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166603
Appears in Collections: 气候变化与战略
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作者单位: Department of Earth System Science, Stanford University, Stanford, CA, United States; Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Center for Global Discovery and Conservation Science, Arizona State University, Tempe, AZ, United States
Recommended Citation:
Chadwick K.D.,Asner G.P.. Geomorphic transience moderates topographic controls on tropical canopy foliar traits[J]. Ecology Letters,2020-01-01,23(8)