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The Biology of SoilA community and ecosystem approach$
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Richard Bardgett

Print publication date: 2005

Print ISBN-13: 9780198525035

Published to Oxford Scholarship Online: April 2010

DOI: 10.1093/acprof:oso/9780198525035.001.0001

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Organism interactions and soil processes

Organism interactions and soil processes

Chapter:
(p.57) 3 Organism interactions and soil processes
Source:
The Biology of Soil
Author(s):

Richard D. Bardgett

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198525035.003.0003

This chapter illustrates how the activities of soil biota, especially their trophic interactions, influence the processes of decomposition and nutrient cycling, and examines the significance of this for material flow and plant production in terrestrial ecosystems. The focus is on the availability of nitrogen and phosphorus since they are the two nutrients that most limit primary productivity in natural and managed terrestrial ecosystems. First, the issue of how soil microbes regulate the internal cycling of nutrients in terrestrial ecosystems is discussed. This is followed by a discussion of how soil animals influence nutrient cycling and plant growth through their feeding activities on microbes and other fauna.

Keywords:   soil biota, soil organism, nitrogen, phosphorus, terrestrial ecosystems, soil nutrients, soil microbes, nutrient cycling, microbial control

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