Dear Colleagues I am working on developing growth response functions to investigate the effects of climate on growth performance of Douglas fir provenances. Most of the contemporary studies use multivariate models with tree height at specific age as dependent variable and climate parameters(eg. Mean annual temperature, degree days , Annual heat mositure index etc) as independent variable.
We all know that tree height is least influenced by management and therefore its most logical to use tree height as the dependent variable. However in my case I have very little tree height data. In this circumstance I am looking for your valuable opinion that can justify the use of DBH as a dependent variable. Looking forward to hearing from you. best regards Dev -- Debojyoti Chakraborty Wissenschaftlicher Mitarbeiter Department of forest and soil sciences, Universität für Bodenkultur Wien Ph: Vienna +43 6764871296 (m) Lecturer, Amity Institute of Global Warming and Ecological Studies Amity University campus, Block D, II floor,Sector 125, NOIDA India www.amity.edu/aigwes India +919868001750 (M India), 01204392562 (O) 0120-4392606 (Fax) alternate email id: [email protected], [email protected] skype: d-chakraborty
