%0 Journal Article %T 滇池福保湾间隙水氮磷分布及其与底泥微生物和磷酸酶相互关系 %T Distributions of nitrogen and phosphorus in interstitial waters in the sediments of Fubao Bay in Lake Dianchi and their relationships with the activities of microbe and alkaline phosphatase in the surface sediments %A 李宝 %A 丁士明 %A 范成新 %A 钟继承 %A 张路 %A 尹洪斌 %A 赵斌 %A LI,Bao %A DING,Shi ming %A FAN,Cheng xin %A ZHONG,Ji cheng %A ZHANG,Lu %A YIN,Hong bin %A ZHAO,Bin %J 湖泊科学 %J Journal of Lake Sciences %@ 1003-5427 %V 20 %N 4 %D 2008 %P 420-427 %K Peeper;营养盐;沉积物;微生物活性;碱性磷酸酶;滇池 %K Peeper;nutrients;sediment;activity of microbe;alkaline phosphatase;Lake Dianchi %X 在滇池福保湾不同区域应用Peeper(渗析膜式)技术,分析了底泥间隙水NH4+-N、PO43--P的垂向分布特征和近表层10cm内底泥的微生物活性(FDA)、碱性磷酸酶活性(APA),并对它们之间的相互关系进行了统计分析.结果表明,NH4+-N和PO43-浓度自上覆水向下层间隙水呈先升后降趋势,反映它们有自间隙水向上覆水扩散的潜在危害;底泥有机质(Loss-on-Ignition,LOI)、APA和FDA活性也有从表层底泥向下层逐步降低的趋势.在空间分布上,NH4+-N、PO43-浓度变化为河口区>湾心区>西部沿岸区>东部沿岸区,与沉积物中LOI、APA和FDA活性的大小顺序基本相同.间隙水NH4+-N浓度与表层10cm内底泥的APA和FDA活性具有显著正相关性(α=0.01),PO43-浓度与底泥APA和FDA活性具有负相关性,但相关系数很低. %X Peeper technique was used to sample the interstitial waters in the sediments of Fubao Bay in Lake Dianchi, and the vertical distributions of NH4+-N and PO43--P in the waters were analyzed. The activities of microbe (the activity of FDA) and alkaline phosphatase (APA) in the surface sediments were also studied. The results showed that concentrations of NH4+-N and PO43--P in the interstitial waters generally increased, then decreased, with the depth, reflecting a possible diffusion trend for these nutrients. The decreasing trend was observed for the contents of organic matter (Reflected by Loss-on-Ignition, LOI), the activity of FDA and the APA in the 10cm surface sediments. The order of concentrations of NH4+-N and PO43--P in the interstitial waters, as well as the LOI, the activity of FDA and the APA in the surface sediments, ranked as estuary> the center of the bay > the west coast of the bay > the east coast of the bay. Regression analyses showed that concentrations of NH4+-N in the interstitial water were positively correlated with the activity of FDA and the APA in the surface sediments (0-10cm), while the concentrations of PO43--P were negatively correlated with them and the coefficient was very low. %R 10.18307/2008.0403 %U http://www.jlakes.org/ch/reader/view_abstract.aspx %1 JIS Version 3.0.0