Effects of Periodic Drying-Rewetting Cycles on Nitrogen Contents in Sediments in a Typical Coastal Wetland, Chongming East Intertidal Flat

摘要：

　　The coastal wetland,a typical transitional zone between land and ocean,is a complex and sensitive ecosystem with special ecological and environmental values.The ecosystem is physically characterized by periodic alternation of drying and re-flooding under the influences of a spring tide (Approximately twice a month) and a semi-diurnal tide (two almost equal high tides and two low tides in a lunar day).Intertidal flats are periodically exposed and submerged under the tides,following the uprising and leaching of salts.This substantially complicates nitrogen (N) transformation in sediments.However,there are insufficient investigations about N responses in coastal wetlands.This study focuses on the effects of periodic alternation of drying and re-flooding on N content variations as well as the potential environmental effects.

关键词： Coastal wetlands Drying and rewetting Nitrogen Nitrate reductase Urease

作者: Cao Xue Han Jiangang Zhu Yongli Li Pingping

作者单位: School of the Environment,Jiangsu University,Zhenjiang 212013,China College of Forest Resources and Environment,Nanjing Forestry University,Nanjing 210037,China

会议类型: 国际会议

会议名称: 3rd International Conference on Pollution Ecology(第三届污染生态学国际会议(3rd ICPE))

会议地点: 天津

会议语种:英文

页码: 70-71

在线出版日期: 2012-11-06（万方平台首次上网日期，不代表论文的发表时间）