Soil microbial biomass and activity under natural and regenerated forests and conventional sugarcane plantations in Brazil

被引：57

作者：

Alves da Silva, Danielle Karla ^{[2
]}

Freitas, Nicacio de Oliveira ^{[2
]}

de Souza, Renata Gomes ^{[2
]}

Barbosa da Silva, Fabio Sergio ^{[3
]}

Ferreira de Araujo, Ademir Sergio ^{[1
]}

Maia, Leonor Costa ^{[2
]}

机构：

[1] Univ Fed Piaui, Ctr Ciencias Agr, Programa Posgrad Agron, BR-64000000 Teresina, PI, Brazil

[2] Univ Fed Pernambuco, Dept Micol, Programa Posgrad Biol Fungos, BR-50670420 Recife, PE, Brazil

[3] Univ Pernambuco Campus Petrolina UPE, BR-56300000 Petrolina, PE, Brazil

来源：

GEODERMA | 2012年 / 189卷

关键词：

Enzyme activity; Atlantic forest; Microbial respiration; Microbial biomass C; FLUORESCEIN DIACETATE HYDROLYSIS; LAND-USE; ENZYME-ACTIVITIES; TURNOVER; DECOMPOSITION; DIVERSITY; NITROGEN;

D O I：

10.1016/j.geoderma.2012.06.014

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

The objective of this study was to evaluate the changes in soil microbial biomass and activity after the regeneration of deforested and cultivated soil in Brazil. Soil sampling was carried out in June and December 2007 (wet and dry seasons, respectively), at four areas, including: a native forest (NF), a 10 years old regenerated forest (RF10), a 20 years old regenerated forest (RF20) and a conventional sugarcane plantation (CL). Microbial biomass C, substrate-induced respiration and cellulase, saccharase, hydrolysis of fluorescein diacetate and dehydrogenase activities were analyzed. The microbial variables varied significantly among different areas depending on the season. Usually, larger differences were observed in the RF10 than in others, in dry season, for soil microbial biomass C and enzyme activities. The multidimensional scaling analysis showed that the RF10 has distinct microbial and biochemical characteristics comparing with the other areas. In general form, microbial activity, as measured by enzyme activities, is higher in native forest and regenerated lands than in cropland. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：257 / 261

页数：5

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