Assessing nitrogen controls on carbon, water and energy exchanges in major plant functional types across North America using a carbon and nitrogen coupled ecosystem model

Suo Huang, Paul Bartlett and M. Altaf Arain

Ecological Modelling, 2016, vol. 323, issue C, 12-27

Abstract: A carbon and nitrogen coupled dynamic vegetation ecosystem model (CLASS-CTEMN+) was used to assess the effects of nitrogen controls on simulated carbon, water and energy exchanges in a range of vegetation ecosystems. Standardized meteorological forcing data and eddy covariance flux measurements of carbon, water and energy from 32 FLUXNET sites covering eight major plant functional types (PFTs) across North America were used in the analysis. Two versions of the model, a carbon and nitrogen (CN) coupled version and carbon (C) only version, were employed. Simulated diurnal, daily, seasonal and annual values of gross ecosystem productivity (GEP), ecosystem respiration (Re), net ecosystem productivity (NEP), net radiation (Rn), sensible heat flux (H), latent heat flux (LE) and vegetation biomass and soil carbon stocks were compared with available measured values to evaluate the model's performance in each PFT.

Keywords: Carbon; Nitrogen; Net ecosystem productivity; Sensible heat; Latent heat; Canadian Land Surface Scheme; Canadian Terrestrial Ecosystem Model; North American Carbon Program; Plant functional types (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:323:y:2016:i:c:p:12-27

DOI: 10.1016/j.ecolmodel.2015.11.020

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