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Effect of biochar addition on short-term N2O and CO2 emissions during repeated drying and wetting of an anthropogenic alluvial soil
Fang Yang;  Xinqing Lee;  Benny K. G. Theng;  Bing Wang;  Jianzhong Cheng;  Qian Wang
2017
发表期刊Environmental Geochemistry and Health
卷号39期号:3页码:635-647
摘要

Agricultural soils are an important source of greenhouse gases (GHG). Biochar application to such soils has the potential of mitigating global anthropogenic GHG emissions. Under irrigation, the topsoils in arid regions experience repeated drying and wetting during the crop growing season. Biochar incorporation into these soils would change the soil microbial environment and hence affect GHG emissions. Little information, however, is available regarding the effect of biochar addition on carbon dioxide (CO2) and nitrous oxide (N2O) emissions from agricultural soils undergoing repeated drying and wetting. Here, we report the results of a 49-day aerobic incubation experiment, incorporating biochar into an anthropogenic alluvial soil in an arid region of Xinjiang Province, China, and measuring CO2 and N2O emissions. Under both drying-wetting and constantly moist conditions, biochar amendment significantly increased cumulative CO2 emission. At the same time, there was a significant reduction (up to 20 %) in cumulative N2O emission, indicating that the addition of biochar to irrigated agricultural soils may effectively slow down global warming in arid regions of China

关键词Biochar Drying And Wetting Co2 N2o
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/7758
专题环境地球化学国家重点实验室
作者单位1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
2.Chengdu Hydrogeological and Engineering Geological Team, Chengdu 610072, China
3.Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
第一作者单位中国科学院地球化学研究所
通讯作者单位中国科学院地球化学研究所
推荐引用方式
GB/T 7714
Fang Yang;Xinqing Lee;Benny K. G. Theng;Bing Wang;Jianzhong Cheng;Qian Wang. Effect of biochar addition on short-term N2O and CO2 emissions during repeated drying and wetting of an anthropogenic alluvial soil[J]. Environmental Geochemistry and Health,2017,39(3):635-647.
APA Fang Yang;Xinqing Lee;Benny K. G. Theng;Bing Wang;Jianzhong Cheng;Qian Wang.(2017).Effect of biochar addition on short-term N2O and CO2 emissions during repeated drying and wetting of an anthropogenic alluvial soil.Environmental Geochemistry and Health,39(3),635-647.
MLA Fang Yang;Xinqing Lee;Benny K. G. Theng;Bing Wang;Jianzhong Cheng;Qian Wang."Effect of biochar addition on short-term N2O and CO2 emissions during repeated drying and wetting of an anthropogenic alluvial soil".Environmental Geochemistry and Health 39.3(2017):635-647.
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