Carbon Distribution in Humic Substances Fractions Extracted from Soils Treated with Charcoal (Biochar)

摘要：

　　Biochar incorporation into the soil is a proposed C sequestration strategy.How newly applied biochar affects C accumulation in the soil is therefore a relevant question.This study presents pan of the results,obtained from field experiments,of a study which has as objective to contribute to elucidate this question.The results indicated that biochar application into the soil directly influences humic substances levels.This effect is most probably due to the dichromate oxidable C contained in the biochar itself.This abstract and the abstract by Novotny et al.in this anais are containing complementary information as the latter characterized the HS fractions extracted from the same samples of the sandy loam discussed in this abstract.

关键词： Biochar Pyrogenic carbon Fulvic acids Humic acids Humin Quantification

作者: B.E.Madari L.B.Lima M.A.S.Silva E.H.Novotny F.A.Alc(a)ntara M.T.M.Carvalho F.A.Petter

作者单位: Embrapa Rice and Beans,Caixa Postal 179,CEP 75375-000,Santo Ant(o)nio de Goiás-GO,Brazil Embrapa Rice and Beans,Caixa Postal 179,CEP 75375-000,Santo Ant(o)nio de Goiás-GO,Brazil;Federal Uni Embrapa Soils,Rua Jardim Bot(a)nico,1024,CEP 22460-000,Rio de Janeiro-RJ,Brazil,Federal University o Federal University of Piauí,CEP 64900-000,Bom Jesus-PI,Brazil

会议类型: 国际会议

会议名称: the 16th Meeting of the International Humic Substances Society (第十六届国际腐殖物质学会大会(IHSS 16))

会议地点: 杭州

会议语种:英文

页码: 564-566

在线出版日期: 2012-09-09（万方平台首次上网日期，不代表论文的发表时间）