期刊
AGRICULTURAL AND FOREST METEOROLOGY
卷 151, 期 12, 页码 1823-1830出版社
ELSEVIER
DOI: 10.1016/j.agrformet.2011.07.020
关键词
Uncertainty; Net ecosystem productivity; Eddy-covariance; Scots pine; Carbon
资金
- European Commission [GOCE-CT2003-505572]
- Dutch National Research Program Climate Changes Spatial Planning [ME1]
- Ministry of Agriculture and Food Safety of the Netherlands
Values for annual NEP of micrometeorological tower sites are usually published without an estimate of associated uncertainties. Few authors quantify total uncertainty of annual NEP. Moreover, different methods to assess total uncertainty are applied, usually addressing only one aspect of the uncertainty. This paper presents a robust and easy to apply method to quantify uncertainty of annual totals of Net Ecosystem Productivity (NEP), related to multiple factors involved therein. The method was applied to NEP observations for a Scots pine forest (Loobos) in the Netherlands. Total uncertainty of annual NEP for the Loobos site was on average +/- 32 g C m(-2) a(-1) (+/- 8% of NEP), which is a quarter of the standard deviation of annual NEP (127 gC m(-2) a(-1)). (C) 2011 Elsevier B.V. All rights reserved.
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