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Estoque de serapilheira e atividade microbiana em solo sob sistemas agroflorestais

Authors: Silva, Miguel Seabra Correa da; Silva, Eliane Maria Ribeiro da; Pereira, Marcos Gervasio; Silva, Cristiane Figueira da;

Estoque de serapilheira e atividade microbiana em solo sob sistemas agroflorestais

Abstract

Este estudo objetivou avaliar o efeito de dois tipos de manejo agroflorestal (SAFs 1 e 2) sobre os estoques de serapilheira, as características químicas do solo e a atividade e a biomassa microbiana do solo (BMS), comparando-os a uma área com agricultura anual (AgAn) e uma mata secundária no município de Paraty-RJ. O manejo de poda nos SAFs promoveu aumento nos teores e/ou nos estoques de nitrogênio, fósforo, potássio e magnésio da serapilheira, levando à condição de semelhança aos estoques da mata e de superioridade em relação aos estoques da AgAn. No verão, o carbono da BMS e a respiração basal foram mais elevados na área de mata, enquanto que, em ambas as estações, inverno e verão, não houve diferença entre os SAFs e a área de AgAn. O SAF-2 apresentou elevado quociente microbiano no inverno, demonstrando maior sensibilidade dos microrganismos às mudanças de cobertura vegetal do que aos atributos químicos do solo.

Keywords

agroecology, agroecologia, Forestry, SD1-669.5, soil respiration, indicadores microbiológicos, respiração do solo, microbial indicators

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    popularity
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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
9
Top 10%
Average
Average
Green
gold