【作者】 陈中赟； 黄玲琳；

【Author】 CHEN Zhong-yun;HUANG Ling-lin;Huzhou Meteorological Bureau;

【机构】 浙江省湖州市气象局；

【摘要】 针对近年来太湖蓝藻水华发展逐年严重,而2008年较2007年有明显减轻的现象,利用2003—2008年湖州地面气象观测站的降水资料和国家气象卫星中心提供的太湖水情遥感监测资料,定性分析了降水与蓝藻变化的关系,研究表明:(1)近年来降水量持续偏少是太湖蓝藻水华逐年增多加重的一个重要气象条件,2008年降水量偏多则使得蓝藻水华较前两年减少。(2)大多数小雨天气对蓝藻短期发展较有利;中等强度降水对蓝藻短期发展有一定的抑制作用;大雨以上降水过程抑制蓝藻发展较明显。(3)连续阴雨天气与集中性强降水(如2008年梅汛期强降水过程)对蓝藻发展的抑制作用尤其明显,且有一定持续性。更多还原

【Abstract】 In recent years,the cyanobacteria bloom in Taihu Lake has developing seriously year by year,but last year the development of cyanobacteria has more reduced than 2007.Using the precipitation data from 2003 to 2008 of Huzhou ground meteorological observatory and the Taihu Lake Remote water monitoring data of the National Meteorological Satellite Center,it qualitative analysed the relationship between precipitation and the changes of cyanobacteria bloom.Researches showed that;(1) The continued low rainfall in recent years was an important factor to the increase of Taihu Lake’s cyanobacteria.Precipitation on the high side made the cyanobacteria bloom reduced in 2008.(2) Most of the light rain weather was more favorable to the cyanobacteria’s short-term development Moderate precipitation had certain inhibition.Heavy rain weather had obvious inhibition to the development of cyanobacteria(3) Continuous rainy weather and concentrated heavy rainfall(such as the June flood season in 2008) had particularly evident inhibition to the development of cyanobacteria,and this inhibition had some continuity.更多还原