[Effects of algal bloom on N, P and K contents in Meiliang Bay of Taihu Lake].
According to the measurements in Meiliang bay between 1998-2000, 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 1-4 mg.L-1 and TP content was between 0.1-0.3 mg.L-1.
Yang
Dingtian
D
Institute of Nanjing Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China. dtdang@163.net
Chen
Weimin
W
Jiang
Jing
J
Ji
Jiang
J
Cao
Wenxi
W
D002734:Chlorophyll / Q000032:analysis; D000077194:Chlorophyll A; D000458:Cyanobacteria / Q000254:growth & development*; D005618:Fresh Water / Q000032:analysis*; D009584:Nitrogen / Q000032:analysis*; D010758:Phosphorus / Q000032:analysis*; D011188:Potassium / Q000032:analysis*; D013696:Temperature
D002734:Chlorophyll; D010758:Phosphorus; D009584:Nitrogen; D011188:Potassium; D000077194:Chlorophyll A