气象与环境学报Issue(5)：131-140,10.DOI:10.3969/j.issn.1673-503X.2014.05.019
1960-2009年石羊河流域气候变化特征
Climate change characteristics from 1960 to 2009 in Shiyang river basin
摘要
Abstract
Based on daily temperature,precipitation and evaporation data at five meteorological observation stations in Shiyang river basin,temporal and spatial characteristics of interdecadal variability of three elements were ana-lyzed by methods of a liner tendency rate,a Mann-Kendall test and a Kriging interpolation.The results indicate that the minimum increasing rate of air temperature is 0.25 ℃ per decade from 1960 to 2009 in Shiyang river basin, and it is higher than that in the whole China and the globe.Increasing rate of air temperature is higher in the east-ern area than in the western area of the study area.Air temperature is in a decreasing trend in 1960s in Shiyang riv-er basin,while it is in an increasing trend during 1970s to 2000s in most areas of this basin.Besides,temperature increase has a mutation phenomenon in Shiyang river basin.Interdecadal precipitation and its average are higher in the western area than in the eastern area.However,increasing rate of precipitation in Shiyang river basin rarely rea-ches significant level,and precipitation change is caused by its interannual oscillation.Evaporation in most areas of Shiyang river basin increases first and then decreases in the past fifty years.Evaporation has an abrupt change phe-nomenon in Shiyang river basin,except at Minqin.Drought could become severe in this region because of continu-ous increase temperature and evaporation as well as both cooperation relations.关键词
气温/降水量/蒸发量/突变分析Key words
Air temperature/Precipitation/Evaporation/Mutation analysis分类
天文与地球科学引用本文复制引用
赵福年,王莺,张龙..1960-2009年石羊河流域气候变化特征[J].气象与环境学报,2014,(5):131-140,10.基金项目
兰州干旱气象研究所科研启动项目（KYS2012SSKY05）和兰州干旱气象研究所科研基本业务费项目（KYYWF201323）共同资助。 （）
