文献类型： 外文期刊
第一作者： Lu, Haohao
作者： Lu, Haohao;Wang, Yaofeng;Liu, Yuxue;Wang, Yuying;He, Lili;Yang, Shengmao;Lu, Haohao;Wang, Yaofeng;Liu, Yuxue;Wang, Yuying;He, Lili;Zhong, Zheke;Yang, Shengmao;Wang, Yaofeng;Wang, Yuying;Yang, Shengmao;Zhong, Zheke
作者机构：
关键词： biochar application; dissolved organic carbon; methane; nitrous oxide; soil quality
期刊名称：CLEAN-SOIL AIR WATER （ 影响因子：1.77； 五年影响因子：1.955 ）
ISSN： 1863-0650
年卷期： 2018 年 46 卷 4 期
页码：
收录情况： SCI
摘要： Biochar application might be a newly agricultural method for improving soil quality and carbon sequestration by its special physical and chemical properties, which has generated great interest for scientists and policy makers. However, the physical structure of biochar and its effect on N2O and CH4 emissions are not yet clear. The effect of bamboo biochar and water-washed bamboo biochar with or without N fertilization on greenhouse gas emissions, soil properties, and rice yield in a pot experiment were investigated. The results showed that biochar application increased soil pH, total N content, dissolved organic carbon (DOC), and rice plant growth. Although biochar application increased DOC content, N2O and CH4 emissions decreased. The soil NH4+ and NO3- contents were significantly decreased by biochar application, indicating that bamboo biochar has a remarkable ability to absorb NH4+ and NO3-. However, no significant differences in N2O emission were observed between biochar and washed biochar treatment. The CH4 emission in the washed biochar treatment was decreased to a greater extent than in the unwashed biochar, indicating that washed biochar has a greater inhibitory effect on CH4 emission than does unwashed biochar, and that the stable physical structure of biochar might be an important factor for reducing CH4 emissions. Additional studies are needed to investigate the role of functional microorganism in order to better understand the biochar on greenhouse gas emissions from paddy soils.
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