Carbon and nitrogen stocks of soils under different land uses in Pernambuco state, Brazil
Acrisols, 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 sig...
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ri-123456789-308592024-03-19T04:04:31Z Carbon and nitrogen stocks of soils under different land uses in Pernambuco state, Brazil Santana, 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 Primo, Dário Costa Semiarid Acrisols Leptosols Ferralsols Planosols Soil C and N stocks Soil depth Land use change Acrisols, 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 region 2021-04 2020-12-07T14:10:32Z 2019-03 article SANTANA, 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. 2352-0094 https://repositorio.ufrn.br/handle/123456789/30859 10.1016/j.geodrs.2019.e00205 en Elsevier |
| institution |
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| language |
English |
| topic |
Semiarid Acrisols Leptosols Ferralsols Planosols Soil C and N stocks Soil depth Land use change |
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Semiarid Acrisols Leptosols Ferralsols Planosols Soil C and N stocks Soil depth Land use change Santana, 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 Primo, Dário Costa Carbon and nitrogen stocks of soils under different land uses in Pernambuco state, Brazil |
| description |
Acrisols, 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 region |
| format |
article |
| author |
Santana, 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 Primo, Dário Costa |
| author_facet |
Santana, 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 Primo, Dário Costa |
| author_sort |
Santana, Mônica da Silva |
| title |
Carbon and nitrogen stocks of soils under different land uses in Pernambuco state, Brazil |
| title_short |
Carbon and nitrogen stocks of soils under different land uses in Pernambuco state, Brazil |
| title_full |
Carbon and nitrogen stocks of soils under different land uses in Pernambuco state, Brazil |
| title_fullStr |
Carbon and nitrogen stocks of soils under different land uses in Pernambuco state, Brazil |
| title_full_unstemmed |
Carbon and nitrogen stocks of soils under different land uses in Pernambuco state, Brazil |
| title_sort |
carbon and nitrogen stocks of soils under different land uses in pernambuco state, brazil |
| publisher |
Elsevier |
| publishDate |
2020 |
| url |
https://repositorio.ufrn.br/handle/123456789/30859 |
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