Data/hora: 16/06/2024 09:42:29

Biblioteca(s): | Embrapa Semiárido.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 10/05/2022
Data da última atualização: | 21/07/2022
Autoria: | SANTANA, M. da S.; ANDRADE, E. M. de; SAMPAIO, E. V. de S. B.; FERREIRA, T. O.; SALVIANO, A. M.; SILVA, D. J.; CUNHA, T. J. F.; GIONGO, V.
Afiliação: | MONICA DA SILVA SANTANA, Universidade Fedral do Ceará; EUNICE MAIA DE ANDRADE, Universidade Federal do Ceará; EVERARDO VALADARES DE SÁ BARRETO SAMPAIO, UFRPE; TIAGO OSORIO FERREIRA, Universidade Federal do Ceará; ALESSANDRA MONTEIRO SALVIANO, CPATSA; DAVI JOSE SILVA, CPATSA; TONY JARBAS FERREIRA CUNHA, CPATSA; VANDERLISE GIONGO, CPATSA.
Título: | Do agrosystems change soil carbon and nutrient stocks in a Semiarid environment?
Ano de publicação: | 2022
Fonte/Imprenta: | Journal of Arid Environments, v. 201, 104747, Jun. 2022.
DOI: | https://doi.org/10.1016/j.jaridenv.2022.104747
Idioma: | Inglês
Conteúdo: | Ecological processes, such as net primary production, root system development, organic matter mineralization, nutrient removal and fertilizer application interfere in gains and losses of C and nutrients (N, P, K, Ca and Mg) in soils. Herein, we studied how five rainfed livestock and four irrigated agricultural systems affected soil C and nutrient stocks in a semi-arid environment. Soil concentrations, stocks, gains and losses of the nine land-uses were compared to those of the preserved native deciduous forest (Caatinga) along the top 1 m soil layer. Open Caatinga used as pasture, gliricidia and leucaena fields maintained the stocks of most nutrients. The shallower roots of buffel grass and prickly pear led to C (7 and 18%) and N (7 and 20%, respectively) losses, and P, Ca and Mg accumulations in the deeper layers. Irrigated crops reduced soil C and N stocks. C losses in irrigated maize and beans fields (23%) were lower than in rainfed fields in the region, while those in mango fields were large (70 and 66%). Fertilization in beans and grapes increased soil P and K stocks. Knowledge of stock changes allows proper system management to reduce the negative impacts of land-use change and promote sustainable production.
Palavras-Chave: | Agroecossistema; Estoque de carbono; Mudança de uso da terra; Processos edáficos; Sustentabilidade; Sustentabilidade ambiental.
Thesagro: | Caatinga; Carbono; Solo; Uso da Terra.
Thesaurus Nal: | Environmental sustainability; Land use; Land use change.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (59853-1) - UPC - AP - DD -  -  -  - DIS