中文摘要：

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、PO4^3-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PO4^3-P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、PO4^3-P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L01、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（a=o．01），PO4^3-P浓度与底泥APA和FDA活性具有负相关性，但相关系数很低．

英文摘要：

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 PO4^3-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 PO4^3-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 concantrations of NH4＋-N and PO4^3-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 PO4^3-P were negatively correlated with them and the coefficient was very low.