An argument for the use of two-layer SVAT schemes to simulate terrestrial carbon dioxide fluxes

C. Huntingford (1) , R. L. Hall (1) , A. Verhoef (1)

1 Institute of Hydrology

An order-of-magnitude argument shows that the different surface temperatures of soil and sparse vegetation affect carbon assimilation and soil respiration significantly. However, regulation of assimilation through associated modulation of in-canopy carbon dioxide levels is weak.
It is shown that for many vegetation types, the use of a two-layer representation of vegetation is essential to predict, accurately, terrestrial carbon fluxes, primarily through allowing different surface energy balances.

Domaines: Interfaces continentales, environnement; Océan, Atmosphère; Sciences de la Terre

C. Huntingford, R. L. Hall, A. Verhoef. An argument for the use of two-layer SVAT schemes to simulate terrestrial carbon dioxide fluxes. Hydrology and Earth System Sciences Discussions, 1998, 2 (2/3), pp.299-302. ⟨hal-00304545⟩