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Effects of Fe and Mn in Paddy Soils

时间:2021-12-07 20:28:45 工业农业论文 我要投稿

Effects of Fe and Mn in Paddy Soils Derived from Different Parent Materials on Methane Production and Emission

Three types of paddy soils, derived from granite, Quaternary red clay and basalt, respectively, were selected to study the effects of Fe and Mn in paddy soils on methane production and emission through pot and incubation experiments. The results indicated that the difference of Fe and Mn in paddy soils was one of the important factors causing obvious differences in methane emission from different soil types. Soil Fe and Mn affecting methane emission from the paddy soils was likely through affecting soil Eh and forming Fe and Mn plaques on rice roots. Different rates and valences of added Fe and Mn significantly affected methane production from paddy soils. Therefore, this study enhanced understanding of processes controlling methane emission from paddy soils and may help to improve modeling and estimating regional and global methane emission from paddy soils.

作 者: LIU Ke-Xing LIAO Zong-wen WANG Sheng-Chun YOU Zhi-Lin   作者单位: College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642 China  刊 名: 土壤圈(意译名)  ISTIC SCI 英文刊名: PEDOSPHERE  年,卷(期): 2003 13(4)  分类号: S15  关键词: Fe   methane emission   methane production   Mn   paddy soil