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特邀美国特洛伊大学于克伟博士来校作学术报告
2017年05月27日    作者: 环科院    发布 : 环科院    

报告题目: Reduction of global warming potential contribution from a rice field by irrigation, organic matter, and fertilizer management

报告时间:6月1日(周四)下午14:00

报告地点:1号学科楼 S205  

报告摘要: The major objective of this study is to find a feasible management practice to mitigate the cumulative global warming potential (GWP) from CH4 and N2O emission in an irrigated rice field. Non-flooding (but wet) conditions reduced CH4 emission by 79 and 71% from the fields with and without organic matter (OM) addition, respectively. This was mainly due to the desirable soil redox status in the non-flooded fields with less CH4 production and more CH4 oxidation when CH4 diffused up the soil profile. Increase in N2O emission from the non-flooded fields offset part of the reduction in CH4 emission, especially when OM was not added. Thus the non-flooding treatment reduced thecumulative GWP by 72% in the OM-added field but only 46% in the field without OM addition. Under flooding conditions, no OM addition reduced CH4 emission by 57%, but rice yield was decreased by 16% in comparison with the OM-added fields. The best management practice proposed from this study is to keep the fields non-flooded but wet with OM addition, which largely reduced the GWP from the fields with no decrease in rice yield.A Biogeochemical Approach to Mitigate Soil Greenhouse Gases.

报告人简介:Dr. Yuke Wei目前是特洛伊大学副教授,已获得终身教职,已发表四十余篇SCI收录论文,论文h指数11,自2003年起担任土壤学领域知名SCI期刊Archives of Agronomy and Soil Science编辑,目前是该刊副主编。

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江苏省大气环境监测与污染控制研究重点实验室 

江苏省环境净化材料工程技术研究中心 

江苏省大气环境与装备技术协同创新中心 

环境科学与工程学院 

2017 年5月27日


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