Título:	Biochar as a Strategy to Mitigate Greenhouse Gases in Degraded Drylands of the Brazilian Semiarid Region: Carbon Stocks and CO2 Fluxes.
Autoria:	SANTOS, J. M. R. DOS PEREIRA, A. P. de A. MONIZ, T. da C. D. HENRIQUE, G. da s. BARBOSA, F. L. A. NASCIMENTO, I. V. do QUEIROZ, A. dos S. ARTUR, A. G. SILVEIRA, M. R. S. da COSTA, M. C. G. SOUSA, H. H. de F. DIAS, C. T. dos S. FERREIRA, O. P. FREGOLENTE, L. G. SOUZA FILHO, A. G. de OLIVEIRA FILHO, R. L. de MOTA, J. C. A.
Afiliação:	JOÃO MARCOS RODRIGUES DOS SANTOS, FEDERAL UNIVERSITY OF CEARÁ ARTHUR PRUDÊNCIO DE ARAUJO PEREIRA, FEDERAL UNIVERSITY OF CEARÁ TIAGO DA COSTA DANTAS MONIZ, FEDERAL UNIVERSITY OF CEARÁ GILVANETE DA SILVA HENRIQUE, FEDERAL UNIVERSITY OF CEARÁ FRANCISCO LUAN ALMEIDA BARBOSA, FEDERAL UNIVERSITY OF CEARÁ ÍCARO VASCONCELOS DO NASCIMENTO, FEDERAL UNIVERSITY OF CEARÁ ALEXANDRE DOS SANTOS QUEIROZ, FEDERAL UNIVERSITY OF CEARÁ ADRIANA GUIRADO ARTUR, FEDERAL UNIVERSITY OF CEARÁ MARCIA REGIA SOUZA DA SILVEIRA, CNPAT MIRIAN CRISTINA GOMES COSTA, FEDERAL UNIVERSITY OF CEARÁ HELON HÉBANO DE FREITAS SOUSA, FEDERAL UNIVERSITY OF CEARÁ CARLOS TADEU DOS SANTOS DIAS, FEDERAL UNIVERSITY OF CEARÁ ODAIR PASTOR FERREIRA, STATE UNIVERSITY OF LONDRINA LAÍS GOMES FREGOLENTE, BRAZILIAN CENTER FOR RESEARCH IN ENERGY AND MATERIALS ANTÔNIO GOMES DE SOUZA FILHO, FEDERAL UNIVERSITY OF CEARÁ ROMILDO LOPES DE OLIVEIRA FILHO, CEARÁ WATER AND SEWAGE COMPANY JAEDSON CLÁUDIO ANUNCIATO MOTA, FEDERAL UNIVERSITY OF CEARÁ.
Ano de publicação:	2025
Referência:	Journal of Plant Nutrition and Soil Science, 0:1–13, 2025.
Conteúdo:	Background: Biochar can enhance total organic carbon (TOC) stocks and reduce CO 2 emissions in degraded soils. Aims: This study assessed the effects of pyrolytic biochars on TOC recovery and CO 2 emissions in a greenhouse experiment. Methods: PVC columns (20 cm diameter, 50 cm height) were filled with soil and arranged in a factorial scheme (2 × 4 + 1) with four replicates. Treatments included two biochars: co-pyrolyzed sewage sludge and cashew pruning (SPB) and cashew bagasse biochar (CBB), applied at 5, 10, 20, and 40 Mg ha − 1 , plus a control. CO 2 flux was measured in two additional gas collection events. TOC content and bulk density were analyzed, and carbon stocks (CSs) were calculated. Results: The application of 5 and 40 Mg ha − 1 of SPB and CBB increased TOC and CSs compared to the control. CO 2 flux fluctuated between samplings, as expected with corn introduction. The highest CO 2 flux initially occurred in SPB40, followed by CBB20, whereas in the second sampling, CBB5 showed the highest flux and CBB20 the lowest. Conclusion: These results suggest that SPB and CBB applications improve soil CSs and mitigate CO 2 fluxes, contributing to climate change mitigation and soil restoration.
NAL Thesaurus:	Soil quality Carbon sequestration
Palavras-chave:	Carbonaceous material Dryland degradation Dryland restoration
Digital Object Identifier:	https://doi.org/10.1002/jpln.70016
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPAT)