红旗泡水生植物群落结构与功能的研究

STUDY ON THE STRUCTURE AND FUNCTION OF AQUATIC PLANT COMMUNITY OF HONGQILAKE INDAQING OIL-FIELD

红旗泡是松嫩平原上的水草型湖泊，１９７２年由引嫩干渠补入嫩江水，使其成为大庆市主要水源地和渔业基地。该湖水生植被分布面积大，覆盖近１／２的水面。本文分析了芦苇，狭叶香蒲和稗等单优群落的结构与分布，并统计了混合群落的数量特征。随着油田开发，大庆地区的水体均受到不同程度的污染；因红旗泡水生植物资源丰富且其具清除油污、吸附重金属和沉降悬浮物等净化功能，故使其成为大庆地区水质最好和鱼产量最高的湖泊。

Hongqi Lake is a macrophyte-type lake on the Song-Nen Plain。It has become themost important water supply source and fishery base in the Daqing Area since the waterof Nenjiang River was diverted into the lake in 1972.The vegetation coverage is about50%of the whole area of the lake。The structure and distribution of the monodominantcommunities of Phragmites communis,Typha angustifolia and Echinochloa crysgalli wereanalysed and the quantitative features of the mixed communities were described.Mostof the water bodies in the Daqing Area were polluted to various degrees with the openingup of the Daqing Oil-field.Due to the abundent aquatic vegetation in the lake whichcan eliminate the waste oil,absorb the heavy metals and settle the suspended substances,the Hongqi Lake has the best water quality and provides the highest fish harvests amongthe water bodies in the Daqing Area.