摘要
近年来,气候变化成为全球关注的热点问题,气温和降水量的变化直接影响到我国的生态环境建设和经济发展。以若羌县48a年的气温,降水量,蒸发量及其风速和沙尘天气资料为研究对象,运用线性拟合法和偏值法,对其气候变化特征进行了分析。结果表明:48a来若羌县气温在波动中呈现出上升趋势,以0.49℃/10a的幅度升高,降水量在波动中呈现上升的趋势,多雨主要发生在21世纪初;蒸发年代际变化总体上呈现上升的趋势,沙尘天气和大风日数表现了分别以39.7次/10a和1.5天/10a的速度减少的趋势。但是风速1.1m/s/10a的速度增加。
Based on the available meteorological date of 1961-2008 and the major climate factors of tempera-ture,precipitation,evaporation etc,the climate characteristics and their trends during the period of 1961-2008 in Ruoqiang County Xinjiang Uyghur Autonomous Region were analyzed to probe the ecological environment change.The results showed that the cliamtic characteristics have been changed obviously in recent 48years.The temperature,precipitation,evaporation have been changing and gradually increasing,However,strong winds and dust weather days have been decreasing.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2010年第8期91-95,共5页
Journal of Arid Land Resources and Environment
关键词
若羌县
气候变化
年际变化
年代际变化
Ruoqiang County
climate change
inter-annual change
inter-decadal change
