Document


Title

Substrate quality influences on microbial activity and mineral availability in taiga forest floors
Document Type: Book Chapter
Author(s): Patrick W. Flanagan
Editor(s): Keith Van Cleve; F. Stuart Chapin III; Patrick W. Flanagan; Leslie A. Viereck; C. Theodore Dyrness
Publication Year: 1986

Cataloging Information

Keyword(s):
  • forest ecosystems
  • forest floor
  • microbial activity
  • minerals
  • taiga
Topic(s):
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Record Maintained By:
Record Last Modified: April 13, 2016
FRAMES Record Number: 1486

Description

Several years ago the author started to view taiga forests in terms of an energy and nutrient limitation theory, for simplicity, separating taiga forests into two basic units - the plants and the microbes. The fauna was omitted; no doubt they are most important in mineralization processes. The hypothesis was that while plants may be mineral-limited in taiga forests, the microbial components are energy-limited. To prove this hypothesis will require a great deal more data and research, but some preliminary results are presented here together with previously published data to indicate the research direction and proffer tentative conclusions. This hypothesis was already somewhat supported by the fact that the vast majority of taiga plants are mycorrhizal. This symbiosis results in the plants having increased mineral supply, and the fungi are assured of sugars (i.e., energy).

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Citation:
Flanagan, P.W. 1986. Substrate quality influences on microbial activity and mineral availability in taiga forest floors. Pages 139-151 In: Van Cleve, Keith; Chapin III, F. Stuart; Flanagan, P.W.; Viereck, Leslie A.; Dyrness, C. Theodore (Ed.). Forest ecosystems in the Alaskan taiga. New York, NY: Springer-Verlag New York Inc.