现代地质Issue(2)：299-306,8.
华北平原气候时空演变特征
Temporal and Spatial Changing Features of Climate in North China Plain
摘要
Abstract
Groundwater is the main water supply source in North China Plain (NCP),and atmospheric precipi-tation infiltration recharge is the main supply source of the groundwater in this area.Therefore,the studies on temporal and spatial changing features of climate in NCP are of great significance to further analyze the influ-ences of climatic changes on groundwater resources.Based on 18 ground climatological stations in NCP in terms of daily climate observation data from 1951 to 2011,this paper analyzed the spatial-temporal evolution features of climate in NCP.The results showed that the minimum temperature of NCP in recent 60 years increases signi-ficantly;the maximum temperature is basically stable;and the mean temperature presents an obviously increa-sing trend.In the spatial distribution,it gradually decreases from southwest to northeast on the whole and gradu-ally tends to increase from the coastal to inland.The precipitation owns a trend of overall gradual decrease and a trend of being weaker at first and then stronger from piedmont plain to coastal plain.Precipitation distribution characteristics are compared and analyzed in the typical lightest and heaviest rainfall years.The spatial distribu-tion presents significant difference in these different rainfall years.Water surface evaporation shows a declining trend overall and it is more in south and north than in central region.NCP has a warming and drying develop-ment trend on the whole.Abrupt change mainly occurred in the middle of 1960s and the beginning of 1970s. The climatic change and human activities are two influential factors of groundwater resources.Effects of precipi-tation on groundwater will be further intensified in extreme climate condition.Measuring and distinguishing of the influences of climatic change and human activities on groundwater remain to be further explored.关键词
华北平原/气候演化/降水/气温/蒸发/地下水Key words
North China Plain/climate change/precipitation/temperature/evaporation/groundwater分类
天文与地球科学引用本文复制引用
王金翠,张英,温吉利,孙继朝..华北平原气候时空演变特征[J].现代地质,2015,(2):299-306,8.基金项目
国家重点基础研究发展计划项目（2010CB428806－2）；国土资源大调查项目（1212011220982）。 （）
