Citizenship USA Children Lee Holdridge Role Botanist | Name Leslie Holdridge Nationality USA | |
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Institutions Instituto Tecnologico de Costa Rica Alma mater H. B.S. in Forestry, University of Maine, 1931, postgrad., 1931-32M.S. in Ecology, University of Michigan, 1946, Ph.D., 1947. Books A Complete Cosmology: The Cyclic Universe, Forest Environments in Tropical Life Zones: A Pilot Study Parents Phebe J. Holmes, Samuel Eneas Holdridge Education University of Michigan, University of Maine | ||
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Leslie Ransselaer Holdridge (September 29, 1907 – June 19, 1999) was an American botanist and climatologist. He was the son of Samuel Eneas Holdridge and Phebe J. Holmes. He was the father of composer Lee Holdridge.
Contents
Overview
In his famous 1947 paper, he defined "life zones" using three indicators:
- Mean annual biotemperature (average temperature, after data values below 0 °C or above 30 °C have been eliminated)
- Total annual precipitation
- The ratio of mean annual potential evapotranspiration to mean total annual precipitation.
References
Leslie Holdridge Wikipedia(Text) CC BY-SA