Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL093285 |
Time–scale dependent relations between Earth Observation based proxies of vegetation productivity | |
Nora Linscheid; Miguel D. Mahecha; Anja Rammig; Nuno Carvalhais; Fabian Gans; Jacob A. Nelson; Sophia Walther; Ulrich Weber; Markus Reichstein | |
2021-11-19 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Much uncertainty remains in measuring the inter-annual and longer–term dynamics of vegetation gross and net primary productivity (GPP, NPP) and the connected land carbon sink. Potential for better GPP estimation lies in newer satellite products representing different processes or vegetation states, but how they capture inter–annual GPP dynamics remains to be explored. Here we differentiate shorter– and longer–term vegetation dynamics and their drivers for several Earth-observation-based vegetation proxies and a GPP estimate using time series decomposition. We find that relations between proxies can significantly differ between time scales, along land cover and climate gradients. For GPP estimated at FLUXNET sites, seasonal and multi–annual slopes differ by at least 25% for half of the cases investigated, indicating considerable mismatch if multi–annual relations were derived from seasonal slopes. Considering time–scale–specific sensitivities between proxies of vegetation productivity may improve estimates of inter–annual variability in vegetation productivity. |
领域 | 气候变化 |
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/342063 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Nora Linscheid,Miguel D. Mahecha,Anja Rammig,等. Time–scale dependent relations between Earth Observation based proxies of vegetation productivity[J]. Geophysical Research Letters,2021. |
APA | Nora Linscheid.,Miguel D. Mahecha.,Anja Rammig.,Nuno Carvalhais.,Fabian Gans.,...&Markus Reichstein.(2021).Time–scale dependent relations between Earth Observation based proxies of vegetation productivity.Geophysical Research Letters. |
MLA | Nora Linscheid,et al."Time–scale dependent relations between Earth Observation based proxies of vegetation productivity".Geophysical Research Letters (2021). |
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