Effects of algal bloom on N, P and K contents in Meiliang Bay of Taihu Lake
Yang, D.; Chen, W.; Jiang, J.; Ji, J.; Cao, W.
Ying Yong Sheng Tai Xue Bao 14(6): 969-972
2003
ISSN/ISBN: 1001-9332 PMID: 12974007 Document Number: 557786
According to the measurements in Meiliang bay between 1998apprx2000, the effects of algal bloom on N, P, and K contents were studied. The results showed that the relationship between the Chl a content and temperature was positive. The lowest contents of NH4+-N, TN, and TP were obtained in August and September every year, and their total content was positively related to the Chl a content. The annual change of K content was similar to that of N and P. Compared to the 8th sampling point, the content of N and P at 0th and 6th sampling point was higher, and P was not the limiting factor. But in other areas, P was the limiting factor. It also proved that Microcystis spp. grew to form water bloom only when N content was between 1apprx4 mgcntdotL-1 and TP content was between 0.1apprx0.3 mgcntdotL-1.