EMISSION OF NITROUS OXIDE AND METHANE IN SOIL FROM PASTURE RECOVERY AREAS IN THE AMAZON MATOGROSSENSE

Química Nova

Instituto Centro de Vida, Alta Floresta, BR¹  Armacolo, Natassia¹  Nogueira, Thiago F.¹  Rodrigues, Renato de A. R.¹  Silveira, Júlia Graziela¹  Embrapa Solos, Rio de Janeiro, BR¹  Embrapa Agrossilvipastoril, Sinop, BR¹  Nogueira, Anna K. da S.¹  Mombach, Mircéia¹  Behling, Maurel¹  Universidade Federal de Mato Grosso, Sinop, BR¹  Castro, Bruno S.¹  Silva, Jacqueline J. N. da¹  Universidade Estadual de Mato Grosso, Alta Floresta, BR¹ 

关键词:  climate change;    greenhouse gases;    livestock;    mitigation;   

DOI  :  10.5935/0100-4042.20150109

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

This study evaluates the chemical processes responsible for the nitrous oxide (N2O) and methane (CH4) fluxes in the managed pasture (PM) and unmanaged pasture (PNM). In addition, the impact of nitrogen fertilization on the N2O and CH4 fluxes was assessed. The experiments were conducted on three farms in Alta Floresta city in the state of Mato Grosso. Both regular and intensive samples were collected from PM, PNM, and forest areas for each of the properties. The gases were sampled using static chambers in the morning. Higher N2O fluxes were recorded in the PMs, whereas the CH4 fluxes showed no influence of nitrogen fertilization in both regular and intensive samples. Low fertilizer levels resulted in low N2O emissions.

【 授权许可】

Unknown