TY - JOUR
T1 - Fitting process-based models with stand growth data
T2 - problems and experiences
AU - Sievänen, Risto
AU - Burk, Thomas E.
PY - 1994/11
Y1 - 1994/11
N2 - A process-based growth model (PBM) for even-aged stands is presented which is based on photosynthesis relationships and provides predictions in terms of tree dimensions. The model has been simplified with only the most essential aspects of photosynthesis, physiology, and tree structure included. As a result, the model has fewer parameters than a typical PBM. Some of these parameters are aggregation of physiological and biometrical constants and thus summarize the effect on stand growth of many PBM parameters. Problems arising in estimating the parameters of a PBM are discussed, using the present model as an example. Finally, an example of calibrating the present model for different sites using typical measurements of stand growth is presented.
AB - A process-based growth model (PBM) for even-aged stands is presented which is based on photosynthesis relationships and provides predictions in terms of tree dimensions. The model has been simplified with only the most essential aspects of photosynthesis, physiology, and tree structure included. As a result, the model has fewer parameters than a typical PBM. Some of these parameters are aggregation of physiological and biometrical constants and thus summarize the effect on stand growth of many PBM parameters. Problems arising in estimating the parameters of a PBM are discussed, using the present model as an example. Finally, an example of calibrating the present model for different sites using typical measurements of stand growth is presented.
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U2 - 10.1016/0378-1127(94)90225-9
DO - 10.1016/0378-1127(94)90225-9
M3 - Article
AN - SCOPUS:0003064061
VL - 69
SP - 145
EP - 156
JO - Forest Ecology and Management
JF - Forest Ecology and Management
SN - 0378-1127
IS - 1-3
ER -