摘要
Nine enclosures (5 m x 5 m) were built in a Fenneropenaeus chinensis culture pond of Rushan Gulf in April, 2001. The probiotics and BIO ENERGIZER solution were applied for disparate treatments. Variations of alkaline phosphatase ac- tivity (APA) and its relationship with the contents of C, N and P in sediments were studied. Results show that APA of sedi- ments increases from 3.096 nmolg-1min-1 to 5.407 nmol g-1min-1 in culture period; the bacteria biomass is not the only factor to determine APA; the contents of total P and total organic carbon have a significant positive correlation with APA, while that of total nitrogen has a negative correlation. In addition, the contents of inorganic P and organic P are not regular with APA. By comparison, TOC shows a more significant coherence with APA, meaning that organic pollution in sediments af- fects APA remarkably.
Nine enclosures (5 m x 5 m) were built in a Fenneropenaeus chinensis culturepond of Rushan Gulf in April, 2001. The probiotics and BIO ENERGIZER solution were applied fordisparate treatments. Variations of alkaline phosphatase activity (APA) and its relationship withthe contents of C, N and P in sediments were studied. Results show that APA of sediments increasesfrom 3.096 nmol g^(-1)min^(-1) to 5.407 nmol g^(-1)min^(-1) in culture period; the bacteria biomassis not the only factor to determine APA; the contents of total P and total organic carbon have asignificant positive correlation with APA, while that of total nitrogen has a negative correlation.In addition, the contents of inorganic P and organic P are not regular with APA. By comparison, TOCshows a more significant coherence with APA, meaning that organic pollution in sediments affects APAremarkably.
基金
the Major State Basic Research of China(Grant No.G1999012011)
the National High Technology Research and Development Program of China(2002AA648010).
