洱海蓝藻水华研究

Research on blue Algae Plakton Bloom in Erhai Lake

本文报道了洱海水华发生时间、优势种群、现存量和分布状况。分析认为， 高浓度营养物质的积累， 生态功能的退化， 生态结构的改变， 以及高水温、强光照的物理条件是洱海蓝藻水华发生的原因。应采取控制磷污染、优先解决水资源， 恢复生态系统良性循环和提高森林覆盖率为主的生态工程等中长期湖内外控制对策。

The occurring time, dominant species, existing amount and distribution of plakton bloom in Erhai Lake are reported in. It is believed that the accumulation of nutrients with high concentration, degeneration of ecological function, change of ecological structure, high temperature of water and strong sunshine cause the plakton bloom. Some long-or-middle term controlling strategies as ecology engineering, which focuses on pollution control of phosphorous, resolving water resource first, restoring the good circulation of ecological system and improving the forest coverage rate, should be conducted.