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Publication Information

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Title: Substrate-induced respiration in Puerto Rican soils: minimum glucose amendment

Author: Zalamea, Marcela; Gonzalez, Grizelle.

Date: 2007

Source: Acta Cientifica. 21(1-3):11-17

Publication Series: Journal/Magazine Article (JRNL)

Description: Soil microbiota –usually quantified as microbial biomass –is a key component of terrestrial ecosystems, regulating nutrient cycling and organic matter turnover. Among the several methods developed for estimating soil microbial biomass, Substrate-Induced Respiration (SIR) is considered reliable and easy to implement; once the maximum respiratory response is determined for a particular substrate amendment and study area. We determined the minimum glucose amendment of three forest types in Puerto Rico: dry, moist, and wet subtropical forests. The minimum glucose concentration was 3 mg C-glu/g dry soil for these forests. Additionally, we discuss soil properties to be considered for the implementation of SIR in tropical soils.

Keywords: soil microbiota, microbial biomass, Puerto Rico, subtropical forest, SIR

Publication Notes:

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

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Zalamea, Marcela; Gonzalez, Grizelle. 2007. Substrate-induced respiration in Puerto Rican soils: minimum glucose amendment. Acta Cientifica. 21(1-3):11-17.

 


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