竺山湖底泥疏浚对内源磷释放控制作用研究  

Study on the Role of Sediment Dredging in Controlling the Release of Internal Phosphorous in Zhushan Lake

作　　者：涂保华[1] 雷春生[1] 魏永[1] 董良飞[1] 张凤娥[1] 赵玲萍[1] 李稳[1] 

机构地区：[1]常州大学环境与安全工程学院,江苏常州213164

出　　处：《安徽农业科学》2011年第3期1675-1676,1678,共3页Journal of Anhui Agricultural Sciences

摘　　要：竺山湖底泥疏浚表层50 cm模拟试验表明,疏浚与对照柱间隙水PO43--P浓度分别为3.6～40.8和9.2～715.6μg/L,沉积物-水界面PO34--P通量分别为-234.5～26.7μg/(m2.d)和-214.9～2 885.6μg/(m2.d),疏浚间隙水PO34--P浓度和沉积物-水界面PO43--P通量与未疏浚相比下降明显,说明底泥疏浚对竺山湖内源磷释放具有极好的控制作用。As found in the simulation experiment on the 50cm surface layer of sediment dredging in Zhushan Lake,the PO3-4-P concentration of the dredged and the undredged interstitial water were 3.6-40.8 μg/L and 9.2-715.6 μg/L respectively,and the PO3-4-P flux of the sediment-water interface was-234.5-26.7 μg/（m2·d） and-214.9-2 885.6 μg/（m2·d） respectively.The PO3-4-P concentration of the dredged interstitial water and the PO3-4-P flux of the sediment-water interface were all lower than that of the undredged control,which indicated that the sediment dredging could better control the release of internal phosphorous in Zhushan Lake.

关 键 词：底泥疏浚 PO43--p通量 内源磷 竺山湖 

分 类 号：X524[环境科学与工程—环境工程]