摘要
1985年2月至1986年2月,对杭州西湖水域微生物现存量和初级生产力进行了逐月调查研究。结果表明,用细胞数和叶绿素a所表征的浮游藻类的生物量,用ATP所表征的活生物碳量及用测氧法和^(14)C同位素示踪法所测得的光合作用速率均为岳湖>西里湖>小南湖>外西湖>北里湖>>三潭内湖。文章评价了近几年对西湖治理的效果,即富营养化的发展得到一定控制,但目前仍属于重富养化生态系统。文章还提出了导致富营养化的关键营养元素之一磷与光合作用速率、透明度等的定量关系,并通过西湖的年初级生产量(5334.2吨有机碳)换算出年潜在鱼产最(约50万公斤)。文章指出,放养摄食浮游藻类的鱼类是减轻湖泊营养负荷的重要途径之一。
Investigation of phytoplanktion standing crop and monthly primary production in the West Lake from Feb. 1985 to Feb. 1986 showed that the phytoplanktion abundance in various parts of the lake as expressed by cell number and chl-a, the biocarbon by ATP and 14C-photo-synthetic rates are in following order: Yuehu Lake>Xili Lake>Xiaonan Lake>Waixi Lake > Belli Lake≥Santannei Lake.The article discussed the effect of administering the West Lake, that eventhough the eutro-phication of the West Lake in those years have been controlled, but it is still an heavy entrop-hic system, and the quantitative relation between the phosphorus and photosynthesis rate and transparency in the West Lake. The potential fish production (about 500 t/a) was calculated from the annual primary production of the West Lake (5334.2 t Corg/a). The authors suggest that stocking of phytoplanktion-feeding fish is one of the way for lightening eutrophication in the West Lake.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1989年第4期365-374,共10页
Oceanologia Et Limnologia Sinica
