%0 Journal Article
%T Phosphorus status on overlying water - sediment of typical riparian wetlands in Hangjiahu plain region and its impact to water quality<br>杭嘉湖平原湿地底泥-上覆水磷素状况及其水质响应研究
%A ZHU Huan-chao
%A SHEN Jian-guo
%A WANG Zhao-de
%A LIN Yuan
%A ZHANG Zhi-jian
%A <br>朱焕潮
%A 沈建国
%A 王兆德
%A 林渊
%A 张志剑
%J 浙江大学学报(农业与生命科学版)
%D 2009
%I Zhejiang University Press
%X Typical riparian wetlands were investigated to understand the status and characteristics on phosphorus (P) of overlying water and sediments located in south region of Taihu Lake basin, along with a case study of Xiazhuhu wetland. The field investigation shows that total phosphorus (TP) in sediment reached 0.17 to 1.20 mg·g-1 with the corresponding maximal P sorption capacity of 228.1 to 824.5 mg·kg-1, implying tend of P accumulation in sediment. There was significant relationship between NaOH+EDTA-P extractable P and TP/Olsen-P in sediment. TP in overlying water was found in rang of 0.036 to 0.944 mg·L-1, which commonly reached over the critical level responding for water eutrophication. Total particulate P (TPP) concentration in overlying water samples occupied 69.1%±15.0% of TP, while dissolved reactive P (DRP) being relatively low. Wetlands located around the water reservation areas were found lowest in term of P concentration in overlying water, compared with agricultural/livestock farming/living zones. Typical investigation and case study proved that there was no significant relationship between TP concentration in overlying water and TP (and/or Olsen-P) level in sediments. The variation of phosphorus in overlying water of those wetlands would be not predicted only by the status of P accumulation along with the corresponding levels of different forms of P in sediment.
%K Taihu Lake basin
%K wetland
%K sediments
%K overlying water
%K phosphorus
%K water quality<br>太湖流域
%K 湿地
%K 底泥
%K 上覆水
%K 磷素
%K 水质
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=298920A27C9BAA22346FCA384240FAA4&jid=466C05D88593309B3EB5CF34361E6426&aid=B30615DCAC6AD1B3D7D7F5F43B92F25B&yid=DE12191FBD62783C&vid=6209D9E8050195F5&iid=E158A972A605785F&sid=0A0BD3F594F876C0&eid=3389C664025A98F9&journal_id=1008-9209&journal_name=浙江大学学报(农业与生命科学版)&referenced_num=0&reference_num=37