Campus Units

Agronomy, Geological and Atmospheric Sciences

Document Type

Article

Publication Version

Published Version

Publication Date

6-2004

Journal or Book Title

Eos, Transactions American Geophysical Union

Volume

85

Issue

22

First Page

220

Last Page

220

DOI

10.1029/2004EO220009

Abstract

The terrestrial carbon cycle is intrinsically tied to climate, hydrology, nutrient cycles, and the production of biomass through photosynthesis. Over two-thirds of terrestrial carbon is stored below ground in soils, and a significant amount of atmospheric CO2 is processed by soils every year.Thus, soil respiration is a key process that underlies our understanding of the carbon cycle. Soil CO2 fluxes are the sum of root (autotrophic) and microbial (heterotrophic) respiration. Several factors contribute to soil respiration, including photosynthetic supply to roots, substrate quality and availability, temperature, and moisture.

Comments

This article is published as Hibbard, K. A., B. E. Law, M. G. Ryan, and E. S. Takle. "Issues and recent advances in soil respiration." Eos, Transactions American Geophysical Union85, no. 22 (2004): 220-220. DOI:10.1029/2004EO220009. Posted with permission.

Rights

Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.

Language

en

File Format

application/pdf

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