湖泊科学2000，Vol.12Issue(4)：353-358,6.
太湖水体中碱性磷酸酶的作用阈值
Experimental Study on the PO34-P Threshold of the Alkaline Phosphatase Activity in Taihu Lake
摘要
Abstract
The composition and activity of alkaline phosphatase in waters with different PO3-4-P concentrations were studied experimentally. The results show: ①The total alkaline phosphatase activity (TAPA) was decreased with the increase of PO3-4-P concentration(r=-0. 586, n=55).Based on the statistic analyses, when PO3-4-P concentrations were between 0 to 0. 010mg· L- 1,no significant difference was found in the TAPA. When PO3-4-P concentrations exceeded 0.010mg·L-1, the TAPA was significant difference (P＜0.01). ②The contents of APA in phytoplankton(PAPA), bacteria (BAPA) and dissolved (DAPA) were different. The ratio of DAPA to TAPA was the highest and BAPA was the smallest. ③With the increasing of PO43-4-P concentration, the PAPA decreased. When PO3-4-P concentrations were between 0 to 0.020mg·L-1, over 0. 020mg·L -1 and over 0.200mg·L -1, the PAPA were no significant, significant(P＜0.05) and highly significant, respectively (P＜0.01). ④The BAPA showed no significant relationship with the PO3-4-P concentration.关键词
太湖碱性磷酸酶阈值Key words
Taihu Lake/alkaline phosphatase activity/threshold value of phosphatic concentration分类
天文与地球科学引用本文复制引用
高光,高锡芸,秦伯强,季江..太湖水体中碱性磷酸酶的作用阈值[J].湖泊科学,2000,12(4):353-358,6.基金项目
中国科学院"九五"重点项目(KZ952-J1-212)、院"九五"重大项目(KZ951-B1-205-02)、院特别支持项目(KZ-T-04-04)及中国科学院南京地理与湖泊研究所所长基金联合资助． （KZ952-J1-212）
