Título:	Soil microbial properties and temporal stability in degraded and restored lands of Northeast Brazil.
Autoria:	ARAÚJO, A. S. F. CESARZ, S. LEITE, L. F. C. BORGES, C. D. TSAI, S. M. EISENHAUER, N.
Afiliação:	ADEMIR SÉRGIO FERREIRA ARAÚJO, UFPI; SIMONE CESARZ, INSTITUTE OF ECOLOGY, FRIEDRICH-SCHILLER-UNIVERSITY JENA, DORNBURGER STR. 159, 07743 JENA, GERMANY; LUIZ FERNANDO CARVALHO LEITE, CPAMN; CLÓVIS DANIEL BORGES, CENTER OF NUCLEAR ENERGY IN AGRICULTURE, UNIVERSITY OF SÃO PAULO, PIRACICABA, SP, BRAZIL; SIU MUI TSAI, CENTER OF NUCLEAR ENERGY IN AGRICULTURE, UNIVERSITY OF SÃO PAULO, PIRACICABA, SP, BRAZIL; NICO EISENHAUER, INSTITUTE OF ECOLOGY, FRIEDRICH-SCHILLER-UNIVERSITY JENA, DORNBURGER STR. 159, 07743 JENA, GERMANY.
Ano de publicação:	2013
Referência:	Soil Biology & Biochemistry, v. 66, p. 175-181, Nov. 2013.
Conteúdo:	Human activities, such as land use change, cause severe land degradation in many ecosystems around the globe with potential impacts on soil processes. Restoration practices aim at reverting such impacts and reconstituting the biotic composition and functioning of an ecosystem to its initial condition. The aim of this study was to monitor soil microbial properties in degraded lands in Northeast Brazil and to compare those with land under restoration. Soil samplings were conducted in 2009, 2010 and 2011 in two different seasons (wet and dry season) at sites differing in degradation status: native vegetation (NAT), moderately degraded land (MDL), highly degraded land (HDL), and land under restoration for four years (RES). Soil microbial properties showed pronounced fluctuations between seasons with higher levels of functioning in the wet than in the dry season. Soil microbial biomass and enzymes had significantly higher values under native vegetation than in degraded land, while restored land mostly corresponded to native vegetation. Soil microbial biomass, respiratory quotient and enzyme activities were more strongly affected by land degradation than soil chemical properties.
Thesagro:	Fertilidade do Solo
Palavras-chave:	Biomassa microbiana do solo Nutrientes do solo
ISSN:	0038-0717
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPAMN)