摘要
利用晋中市近49年的气候和水资源等资料,对气温、降水的变化特征以及由此引起的水资源量的变化进行了统计分析。结果表明:年平均气温整体呈上升趋势,平均以0.3℃/10年速率上升,气温偏高主要是冬季,夏季变化幅度不大。降水量的变化呈减少趋势,以35.9mm/10年的速度在递减,1990年代是降水量减少幅度最大的时期;水资源总量、地下水、河川径流量呈减少趋势,与降水的变化具有明显的一致性。
Based on the climate and water resources data of Jingzhong , Shanxi Province for recent 49 years, the change characteristics of temperature, precipitation and water resources are analyzed. The results indicate that the annual mean temperature is rising at a rate of 0.3 ℃/10a, and the increasing mainly occurs in winter. While, the precipitation is decreasing at a rate of 35. 9mm/10a, with the largest decrease in the 1990s. The water resources, groundwater and river runoff all tend to decrease, which are consistent with the changes of precipitation.
出处
《气象》
CSCD
北大核心
2007年第1期107-111,共5页
Meteorological Monthly
关键词
气候变化
气温
降水
水资源量
climatic variation temperature precipitation water resource