汾河二库藻类监测与分析评价

摘要

通过对汾河二库藻类细胞密度和种类组成的分析，了解了水库藻类的优势种及不同种属组成的季节变化，对水库的富营养化程度进行了初步评判。水库虽暂时爆发水华的风险不大，但仍然显现出进一步富营养化的趋势，分析认为造成水质营养化的污染物主要来自上游工矿企业及城镇生活排放的污水，主要外源污染物为氨氮。据此提出抑制水库富营养化趋势和降低水华爆发风险的措施。%Through analyzing cell density and species composition of algae in Second Fenhe Reservoir , the superiority species of algae and seasanal change of their compositon are known , and this reservoirls eutrophication degree of water quality is judged initially.Although the risk that the situation of algal bloom eruptes will not appear temporarily, but the tendency of further eutrophication has appear . The analysis indicates that the pollutants which form eutrophication situation briefly come from draining industry wastewater and domestic sewage in upperstream . The main pollutants are ammonia and nitrogen . On the basis of this analysis, the measures to restrain entrophication tendency in reservoir and to reduce algae bloom risk are put forward.