Carbon and nitrogen stocks of soils under different land uses in Pernambuco state, Brazil

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dc.contributor.authorSantana, Mônica da Silva
dc.contributor.authorSampaio, Everardo Valadares de Sá Barretto
dc.contributor.authorGiongo, Vanderlise
dc.contributor.authorMenezes, Rômulo Simões Cezar
dc.contributor.authorJesus, Kennedy Nascimento de
dc.contributor.authorAlbuquerque, Eliza Rosário Gomes Marinho de
dc.contributor.authorNascimento, Diego Marcelino do
dc.contributor.authorPareyn, Frans Germain Corneel
dc.contributor.authorCunha, Tony Jarbas Ferreira
dc.contributor.authorSampaio, Raquel Menezes Bezerra
dc.contributor.authorPrimo, Dário Costa
dc.date.accessioned2020-12-07T14:10:32Z
dc.date.issued2019-03
dc.description.embargo2021-04
dc.description.resumoAcrisols, Ferralsols, Leptosols and Planosols were sampled in layers down to 1 m under dense caatinga, open caatinga, pasture and agriculture. Agricultural Leptosols and Planosols had the lowest C and N concentrations among the land uses, although in some cases differences were not statistically significant. On average, conversion of dense caatinga to agriculture reduced C stocks from 63 to 47 Mg ha−1. Acrisols had the highest concentrations of C and N, and Planosols had the lowest concentrations and stocks. Conversion to pasture did not reduce stocks, but open caatinga also had lower C stocks (50 Mg ha−1) than dense caatinga. Nitrogen stocks did not differ among land uses, implying that losses are greater for C than for N. Despite the fact that the western portion of Pernambuco state covers 3% of the Brazilian semi-arid area, it stocks about 0.20 Pg of C (and 0.019 Pg of N), which represents 2% of the total estimated soil C stock in the semiarid region (8.9 Pg). Therefore, the stock per hectare in the west portion of Pernambuco is about one-third smaller than the stock per hectare in the whole Brazilian semiarid region, probably a consequence of the lower average C concentration in the 20 cm superficial layer, a higher proportion of agricultural fields and shallower depths of some soil classes in western Pernambuco than in the whole semiarid regionpt_BR
dc.identifier.citationSANTANA, Mônica da Silva; SAMPAIO, Everardo Valadares de Sá Barretto; GIONGO, Vanderlise; MENEZES, Rômulo Simões Cezar; JESUS, Kennedy Nascimento de; ALBUQUERQUE, Eliza Rosário Gomes Marinho de; NASCIMENTO, Diego Marcelino do; PAREYN, Frans Germain Corneel; CUNHA, Tony Jarbas Ferreira; SAMPAIO, Raquel Menezes Bezerra. Carbon and nitrogen stocks of soils under different land uses in Pernambuco state, Brazil. Geoderma Regional, [S.L.], v. 16, p. 00205-00205, mar. 2019. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S2352009418302256?via%3Dihub. Acesso em: 23 nov. 2020. http://dx.doi.org/10.1016/j.geodrs.2019.e00205.pt_BR
dc.identifier.doi10.1016/j.geodrs.2019.e00205
dc.identifier.issn2352-0094
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/30859
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.subjectSemiaridpt_BR
dc.subjectAcrisolspt_BR
dc.subjectLeptosolspt_BR
dc.subjectFerralsolspt_BR
dc.subjectPlanosolspt_BR
dc.subjectSoil C and N stockspt_BR
dc.subjectSoil depthpt_BR
dc.subjectLand use changept_BR
dc.titleCarbon and nitrogen stocks of soils under different land uses in Pernambuco state, Brazilpt_BR
dc.typearticlept_BR

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