Ecology / Ecologie Biogeographical Maps and Studies / Etudes Et Cartes Biogeographiques International Map of Vegetation and Environmental Conditions at 1/1,000,000 and Related Studies / Carte Internationale Du Tapis Vegetal Et Des Conditions Ecologiques
نویسنده
چکیده
Rates in rupees are valid in India & South Asia only / Les tarifs en roupies sont valables en Inde et en Asie du Sud seulement A vegetation map may be considered in different ways, for instance as a physiognomic map showing the present state of the vegetation, or as a land use survey map. A useful purpose of this kind of map is to show the possibilities of improving production. For this we must distinguish between inconstant factors (human action) and constant factors (ecological conditions). The author is led to conceive ecological maps of the vegetation types, representing both the real vegetation and permanent ecological conditions.
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