Hallo, just a short time ago I stumbled over an article promoting Ecological Field Theory (EFT): Walker,J.;Sharpe,P.J.H.;Penridge,L.K.;Wu,H. 1989: Ecological Field Theory: The concept and field tests, Vegetatio 83: 81-95. As I am currently involved (project LTEEF: long term effects of CO2 and climate change on european forests, project leader is G.M.J. Mohren, Wageningen , Netherlands) in developing a mixed species, individual tree, process based and spatially explicit tree growth model for most of european conditions (basis will be the model TREEDYN, developed by Prof. Bossel), I am interested in every measure or method that might help to model competition and coexistence phenomena in mixed forests and to enhance the prediction capability for different climatic environments. EFT seems superficially to be a candidate (especially for a physicist like I am) but there remain some doubt or uncertainties: - Is there a more rigorous body of theory around the ideas of EFT ( than in the above cited article ) ? - Is there anything practically or theoretically speaking against using EFT for my task? Or has anybody with a similiar problem tried to use EFT? - Was there any significant development of EFT since the appearance of the article (1989)? - Is there a reason (e.g. suspicion) why EFT seems to be a not well known idea? Any answers, and hints to more literature to this subject, would be greatly appreciated. Yours truely Michael Sonntag Forschungsgruppe Umweltsystemanalyse University of Kassel Moenchebergstr. 11 34109 Kassel Germany Tel.: 0561 804 31 75 Fax: 0561 804 31 76 Mail: michael@usys.informatik.uni-kassel.de
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