气候变暖对葫芦岛地区气候的影响

对葫芦岛地区1959～2005年所辖4个气象站（绥中站、连山站、兴城站和建昌站）的温度、降水资料进行了分析。结果表明：气候变暖导致葫芦岛地区气温上升趋势和降水下降趋势比较明显;进入20世纪80年代以后,葫芦岛地区干旱频率增加,严重干旱次数明显高于1980年以前。同时,通过计算不同农业生产季节的干旱指数（Ik）,分析其变化趋势,指出进入20世纪80年代以后夏季、秋季及夏秋连季干旱频发,应予以高度关注。

Effects of Climate Warming on the Climate in Huludao

The temperature and precipitation data from 1959 to 2005 collected by four meteorological stations（Suizhong Station,Lianshan Station,Xingcheng Station and Jianchang Station）in Huludao were analyzed.The results showed that the temperature appeared obviously increasing trend,and the precipitation appeared obviously decreasing trend by climate warming.After 1980s,the drought became frequent,more severe drought happened than the years before 1980.At the same time,the change trend of drought was analyzed by calculating the drought index（IK） of different agricultural production seasons.The drought took place constantly in summer,autumn and summer autumn,which should be paid high attention to.