Characteristics of Ammonia Volatilization of the Typical Calamagrostis angustifolia Wetland Soils in the Sanjiang Plain, Northeast China

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 滨海湿地实验室

	Characteristics of Ammonia Volatilization of the Typical Calamagrostis angustifolia Wetland Soils in the Sanjiang Plain, Northeast China
	Sun Zhigao ; Yu Junbao ; Chen Xiaobing
	2009
会议日期	2009-06-02
会议地点	Shanghai, PEOPLES R CHINA
关键词	Nitrogen Dynamics Flooded Rice Model
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
英文摘要	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.
产权排序	Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Key Lab Coastal Wetland Ecol
会议录	PROGRESS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, VOL II, PTS A AND B
会议录出版者	SCIENCE PRESS BEIJING
学科主题	Engineering ; Environmental ; Environmental Sciences
语种	英语
ISBN号	978-7-03-024459-8
内容类型	会议论文
源URL	[http://ir.yic.ac.cn/handle/133337/3658]
专题	烟台海岸带研究所_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]. 见:. Shanghai, PEOPLES R CHINA. 2009-06-02.