松花江高楞——依兰江段浮游藻类调查——评价该江段水质污染现状

为配合黑龙江省方正林业局在方正县高楞地区新建箱板厂的工程,对其厂址排污口的水域即高楞——依兰江段作了浮游藻类的调查研究,并结合Shann-on-Wiener多样性指数、硅藻生物指数和生物的指示作用对该江段的水质进行生物评价。本文认为该江段尚未达严重污染,随流程的增长,由β——中污逐渐减轻为寡污,但新建厂的污水必须进行处理排入江中,不致加重该江段的污染。

Studies on the Phytoplankton in the Gaoleng-Yilan Section of the Songhua River, An Evaluation on the Status of the Quality of the Polluted Water in that Section

The phytoplanktons in the Gaoleng-Yilan section of the Songhua riverwere collected in the middle of Jan. and the last of May 1987 respectively. Ithas been found that 7 families, 87 genera and 210 species emerged in the twotimes Using the indicator species of phytoplankton, the species diversity index of Shannon-Wiener and diatom index, the water quality of the water po-llution in the section was evaluated. The results shows that the water hasnot yet been seriously polluted in this section of the river. Following thedistance of flow increasing, the pollution decreases from a medium to lightdegree. But if the waste water which drain from the old and new factories intee upper reaches can be treated thoroughly, the water pollution of the riverwill undoubtedly become heavier.