关键词: 气候变化, 降水, 气温, 干燥系数, 介休

Abstract: According to the data of temperature,precipitation,total cloudiness,sunshine hours,smoke days,frost-free period,etc.from Jiexiu provincial meteorological bureau in Shanxi province during the period of 1954-2006,the climate change in Jiexiu city was analyzed.The results showed that the precipitation in Jiexiu decreased,the air temperature,however,increased,especially since the middle of 1990s.Both precipitation decreasing and temperature increasing were significantly higher than that of national average.The climate in jiexiu was divided into two parts since the middle of 1990s,that was,the cold stage and the warm stage.Two significant dry stages occurred in recent 53 years,the first dry stage was from the mid or late-1960s to the mid-1970s,and the second one was from the mid or late-1990s to the beginning of this century.The smoke days and the frost-free period increase,while sunshine hours decreased.

Key words: Climate change, Precipitation, Temperature, Dry coefficient, Jiexiu