Summary: 820 SSSAJ: Volume 71: Number 3 · MayJune 2007
Soil Sci. Soc. Am. J. 71:820828
Received 29 Aug. 2006.
*Corresponding author (firstname.lastname@example.org).
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Soil respiration is the total efflux of CO2 produced from soil
metabolic processes (Lundegardh, 1927), mainly micro-
bial decomposition of soil organic matter and root respiration
(Singh and Gupta, 1977). Thus, the abiotic and biotic factors
that influence microbial growth and activity and plant C alloca-
tion to roots exert significant control over SR rates (Hibbard et
al., 2005). Numerous studies have shown that climatic factors,