4.6 Article

Modelling carbon fluxes of different forests by coupling a remote-sensing model with an ecosystem process model

Journal

INTERNATIONAL JOURNAL OF REMOTE SENSING
Volume 32, Issue 21, Pages 6539-6567

Publisher

TAYLOR & FRANCIS LTD
DOI: 10.1080/01431161.2010.512933

Keywords

-

Funding

  1. National Key Basic Research and Development Program [2009CB421105]
  2. National Natural Science Foundation of China [30500064, 40501048]
  3. Chinese Academy of Sciences [CXTD-Z2005-1]

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A new model (GLOPEM-CEVSA) to determine terrestrial carbon budgets was developed by coupling remote sensing with ecosystem process simulation, and was validated with reference to the carbon fluxes of three forests. MODIS FPAR (MOD15A2 product) was applied together with meteorological data on flux towers. The seasonal variances of modelled gross primary production and ecosystem respiration were significantly correlated with observed values (correlation coefficient, r > 0.9). The seasonal dynamics of the modelled net ecosystem production over the plant-growth season showed significant agreement with observed values with a r range of 0.64 to 0.87. This work demonstrates the potential of GLOPEM-CEVSA to quantify the spatial patterns and temporal dynamics of terrestrial ecosystem carbon sources and sinks with consideration of the spatial heterogeneity of ecosystems based on remote sensing.

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