Distribution of Phosphorus in Sediments of Onshore Reed Areas of Lake Taihu

作     者：XU De-lan LEI Ze-xiang WANG Hong-jun HAN Bao-ping LIU Zheng-wen 

作者机构：School of Environment and Spatial lnformatics China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China Department of Environment Engineering Xuzhou Engineering College Xuzhou Jiangsu 221008 China Department of Environmental Science and Engineering Zhongkai Agricultural Technological College Guangzhou Guangdong 510225 China Ecological Environment Research Center Chinese Academy of Sciences Beijing 100852 China Nanjing Institute of Geography and Limnology Chinese Academy of Sciences Nanjing Jiangsu 210008 China Aquatic Biology Institute Jinan University Guangzhou Guangdong 510632 China 

出 版 物：《Journal of China University of Mining and Technology》 (中国矿业大学学报（英文版）)

年 卷 期：2007年第17卷第4期

页      面：557-561页

核心收录：

学科分类：08[工学] 0815[工学-水利工程] 

基　　金：Projects KZCX1-SW-12 supported by the Chinese Academy of Sciences Knowledge Innovation Program 2002AA60101 by the National High Technol- ogy Research and Development Program of China 

主　　题：Lake Taihu reed phosphorus sediment 

摘      要：To reveal additional effects of aquatic macrophytes on biogeochemical properties of onshore lake phosphorus and to investigate the ecological response of reed communities to this phosphorus,sediments from the Meiliangwan onshore reed area of Lake Taihu were sampled by using a columnar sampler (D=8 cm) on September 18,October 17 and December 3,2003. The samples were compared with those from macrophyte-free areas. The collected samples were dried naturally at room temperature,ground and screened with a 100 mesh sieve. The HClO4-H2SO4 digesting and H2SO4-H2O2 heating digesting methods were used to analyze the total amount of phosphorus (TP) contained in sedi-ments of the reed area and in tissues of reed roots and stems. The result shows: 1) the level of TP,from both the reed area sediment and the reference samples,is highest during the vigorous growing stage and lowest during the slow growing stage. The difference between the two levels is statistically significant (p rhizome stem. All are smaller in the level of phosphorous than that in rhizosphere sediments (0-2 cm).