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Quantification of Existing Eco-regionalizations of Ontario

David J. B. Baldwin

出版	University of Toronto, 1997
URL	http://books.google.com.hk/books?id=Wr3izQEACAAJ&hl=&source=gbs_api

註釋

Three major eco-regionalization systems have been developed and used to varying degrees for many of Ontario's forest, landuse and ecosystem planning strategies. The objective was to quantify these systems with a multivariate set of geo-climatic variables, to compare the strengths and weaknesses of the trends they delineate in the variables or groups of variables (i.e. climate versus landform), and to illustrate which ecological phenomena can be delineated most effectively by each system, at each location. Analyses included descriptive statistics and principal components analysis of each regional unit, comparison of multivariate distances and geologic similarity between units, as well as an examination of the gradients of geo-climatic variables across the unit boundaries. No system was found to be superior overall; each showed strengths and weaknesses in delineating groups of variables (temperature, precipitation, geology, terrain). It was concluded that selecting a systems for use should be based on the phenomenon the user wants to regionalize and that a more flexible and reproducible regionalization system is needed.