TY - JOUR
T1 - The scheme for globalization of a process-based model explaining gradations in terrestrial NPP and its application
AU - Alexandrov, G. A.
AU - Oikawa, T.
AU - Yamagata, Y.
N1 - Funding Information:
The original manuscript was thoroughly revised according to very helpful comments of anonymous reviewers. G.A.A. gratefully acknowledge the support of Global Environmental Forum.
PY - 2002/3/1
Y1 - 2002/3/1
N2 - It is more or less obvious that a process-based net primary production (NPP) model tested for a stand can be applied over a global grid, but doing so, we face the problem - how to calibrate it at this scale. In this paper we demonstrate a scheme for such calibration with a process-based NPP model. First, we suggest that model parameters should be derived from a freely accessible database of NPP measurements. Then, we reduce the number of undefined model parameters to a single lumped parameter (SLP) and find its value for each database entry. Next, considering SLP as some characteristic of vegetation, we formulate an empirical model linking SLP and climate. And finally, we globalize the process-based model in hand by assigning SLP value to the nodes of geographical grid proceeding from the global fields of climatic variables.
AB - It is more or less obvious that a process-based net primary production (NPP) model tested for a stand can be applied over a global grid, but doing so, we face the problem - how to calibrate it at this scale. In this paper we demonstrate a scheme for such calibration with a process-based NPP model. First, we suggest that model parameters should be derived from a freely accessible database of NPP measurements. Then, we reduce the number of undefined model parameters to a single lumped parameter (SLP) and find its value for each database entry. Next, considering SLP as some characteristic of vegetation, we formulate an empirical model linking SLP and climate. And finally, we globalize the process-based model in hand by assigning SLP value to the nodes of geographical grid proceeding from the global fields of climatic variables.
KW - Model calibration
KW - Net primary production
KW - Plant responses to environment
UR - http://www.scopus.com/inward/record.url?scp=0036496208&partnerID=8YFLogxK
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U2 - 10.1016/S0304-3800(01)00456-2
DO - 10.1016/S0304-3800(01)00456-2
M3 - Article
AN - SCOPUS:0036496208
VL - 148
SP - 293
EP - 306
JO - Ecological Modelling
JF - Ecological Modelling
SN - 0304-3800
IS - 3
ER -
