Data/hora: 12/06/2024 05:25:32

Biblioteca(s): 	Embrapa Semiárido.	
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