Evaluation of pasture soil productivity in the semi-arid zone of Brazil by microbial analyses

Brazilian Journal of Microbiology

Rômulo Gil De Luna²  Henrique Douglas Melo Coutinho¹  Breno Machado Grisi² 

[1] ,Universidade Federal da Paraíba Programa Regional de Pós-Graduação em Desenvolvimento e Meio Ambiente João Pessoa PB ,Brasil

关键词: semi-arid;    biomass;    microbial activity;    pasture;    caatinga;    semi-árido;    biomassa;    atividade microbiana;    pastagem;    caatinga;   

DOI  :  10.1590/S1517-83822008000300001

来源: SciELO

【 摘 要 】

The productivity of a pasture soil (caatinga) located in the region of São João do Cariri, PB, Brazil was evaluated based an the following microbiological parameters: biomass (measured by fumigation-incubation method), activity (estimated from basal respiration and cellulose decomposition rate), qCO2, and Cmic : Corg ratio. This analysis demonstrated that livestock management in the 'caatinga' is probably causing environment damage by affecting the soil properties, reducing the microbial biomass and soil respiration and increasing the qCO2, affecting the recovery of this ecosystem.

【 授权许可】

CC BY-NC   
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