摘要
文章利用科尔沁沙地6个气象站点1961—2018年年、季气温、降水、风速等资料,对科尔沁沙地近58a气候特征进行分析。结果表明:近58a来科尔沁沙地年平均气温呈显著上升趋势,而气温日较差呈减小趋势,以上两气象要素以冬、春两季表现最为明显。降水量年际间变化较大,其中夏季降水量呈显著下降趋势。年平均风速自1991年以后呈逐年波动下降趋势。气温高降水少的气候背景加剧了科尔沁沙地干旱化、荒漠化进程。
Based on the 1961—2018 annual temperature,seasonal temperature,precipitation and wind speed data of six meteorological stations in Horqin Sandy Land,the past 58 years climate change characteristics were analyzed.The results showed:From 1961 to 2018,the mean annual temperature in this area was significant increase trend,and increased by 0.33℃·10 a-1 The temperature diurnal range was decreasing trend year by year.The above two meteorological elements was most obviously performance both in winter and spring.The annual precipitation fluctuated among years,with obvious decrease trend in summer.The average annual wind speed had been fluctuating and declining year by year since 1991.The climate background of high temperature and low precipitation intensified the process of drought and desertification in Horqin sandy land.
作者
李思慧
Li Sihui(Tongliao Meteorological Bureau,Inner Mongolia Tongliao 028000)
出处
《内蒙古气象》
2019年第5期8-10,共3页
Meteorology Journal of Inner Mongolia
关键词
气温
降水量
风速
气候变化
科尔沁沙地
Temperature
Precipitation
Wind speed
Climate change
Horqin Sandy Land
