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Vegetation of the Earth and Ecological Systems of the Geo-biosphere

  • Textbook
  • © 1979

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Part of the book series: Heidelberg Science Library (HSL)

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Table of contents (12 chapters)

  1. Introduction: The Classification of Ecological Systems

  2. General Section

  3. Zonobiome of the Equatorial Diurnal Climate With Evergreen Tropical Rain Forest

  4. Semievergreen Forest

  5. Climatic Savannas

  6. Semidesert

  7. Forest-Steppe

  8. Boreonemoral Zone

  9. Forest Tundra

  10. Summary

Keywords

About this book

Phytomass and Primary Production of the Various Vegetational Zones and of the Entire Biosphere The biosphere is that thin layer at the earth's surface in which living organisms exist and biological cycling takes place. It includes the upper horizons of the soil in which plants root, the atmosphere near the ground, (insofar as organisms penetrate this space), and all the surface waters. More than 99% of the earth's biomass is phytomass, to which we shall limit our discussion. Amounts of phytomass are distinctly related to vegeta­ tional zones. Because accurate determination of phytomass and primary production is difficult, only gross estimates have been available until recently. However, in 1970, Bazilevich et al. published (in Russian) more accurate calculations, based on the rapidly accumulating literature, for the various thermal zones and bioclimatic regions of the earth. These authors calculated mean phyto­ mass and mean annual primary production for the various regions as dry mass (in tons) per hectare. On the basis of measurements of the areas covered by the individual regions, excluding rivers, lakes, glaciers, and permanent snow, total phytomass and total annual primary production for the various regions were obtained (see table). The sum of these figures is the phytomass and annual production of the land surface of the earth. In addition, the table gives corresponding data for the waters of the earth. The values involved are potential i. e. , they are based on natural vegetation uninfluenced by man.

Authors and Affiliations

  • University of Hohenheim, Stuttgart-Hohenheim, Federal Republic of Germany

    Heinrich Walter

Bibliographic Information

  • Book Title: Vegetation of the Earth and Ecological Systems of the Geo-biosphere

  • Authors: Heinrich Walter

  • Series Title: Heidelberg Science Library

  • DOI: https://doi.org/10.1007/978-1-4684-0468-5

  • Publisher: Springer New York, NY

  • eBook Packages: Springer Book Archive

  • Copyright Information: Springer-Verlag New York Inc. 1979

  • eBook ISBN: 978-1-4684-0468-5Published: 06 December 2012

  • Series ISSN: 0073-1595

  • Edition Number: 2

  • Additional Information: Translation of the 3rd revised edition of the original German edition

  • Topics: Plant Sciences, Earth Sciences, general

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