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Characteristics of Ammonia Volatilization of the Typical Calamagrostis angustifolia Wetland Soils in the Sanjiang Plain, Northeast China
Sun Zhigao ; Yu Junbao ; Chen Xiaobing
通讯作者Sun, ZG, Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Key Lab Coastal Wetland Ecol, Yantai 264003, Shandong, Peoples R China
会议主办者Chinese Soc Environm Sci, Beijing Inst Technol, Donghua Univ, Key Lab Explos Sci & Technol
2009
会议名称International Symposium on Environmental Science and Technology
会议录名称PROGRESS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, VOL II, PTS A AND B
会议日期2009-06-02
会议地点Shanghai, PEOPLES R CHINA
ISBN号978-7-03-024459-8
出版者SCIENCE PRESS BEIJING
产权排序Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Key Lab Coastal Wetland Ecol
摘要From May to October in 2005, the ammonia (NH3) Volatilization from the soils of typical meadow C. agustifolia wetland (TMCW) and marsh meadow C. agustifolia wetland (MMCW) in the Sanjiang Plain of Northeast China were determined in situ with venting method. Results showed that the change trends of NH3 volatilization rates and cumulative NH3 Volatilization amounts on the two typical C. agustifolia wetland soils were basically the same. The NH3 volatilization rates of MMCW were relatively high, with an average value being 1.35 +/- 0.53 (+/- S.D., n = 16) folds ofTMCW. In growing season, the total NH3 volatilization amounts of TMCW and MMCW soils were 0.635 gN/m(2) and 0.687 gN/m(2), respectively. Compared with the nitrogen wet deposition amount (0.757 gN/(m(2.)a) of Sanjiang Plain in 2005, the NH3 volatilization played an important role in the nitrogen balance of C. angustifolia wetland ecosystem. Further analysis indicated that the storage of soil nitrogenous compounds was not the limiting factor affecting NH3 volatilization process, while atmospheric temperature and other temperature fluctuations were the important factors affecting the changes of NH3 volatilization rates. The precipitation and the fluctuation and dissipation of soil water were the inducers of the partial fluctuation of NH3 volatilization rates, while soil pH and texture were the main factors inducing lower NH3 volatilization rates.
作者部门滨海湿地实验室
关键词Nitrogen Dynamics Flooded Rice Model
学科领域Engineering ; Environmental ; Environmental Sciences
收录类别CPCI(ISTP)
语种英语
文献类型会议论文
条目标识符http://ir.yic.ac.cn/handle/133337/3658
专题滨海湿地实验室
推荐引用方式
GB/T 7714
Sun Zhigao,Yu Junbao,Chen Xiaobing. Characteristics of Ammonia Volatilization of the Typical Calamagrostis angustifolia Wetland Soils in the Sanjiang Plain, Northeast China[C]:SCIENCE PRESS BEIJING,2009.
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