Research on Stability of Desert Climate of Minqin County in Gansu Province  

甘肃民勤荒漠气候的稳定性研究（英文）

作　　者：常兆丰[1] 王大为[1] 韩福贵[1] 段晓峰[1] 

机构地区：[1]甘肃省治沙研究所,甘肃兰州730070

出　　处：《Agricultural Science & Technology》2015年第12期2833-2838,共6页农业科学与技术（英文版）

基　　金：Supported by the Major State Basic Research Development Program(973 Program)(2014CB460611)~~

摘　　要：In order to study the stability of desert climate, the instability of climate in Minqin desert in response to global warming during 1961-2013 was analyzed by sliding standard deviation and a linear trend line. The results show that the instabili- ty of average temperature in January and April increased, and the isothermal date in February was 10.36 d earlier from 1961 to 2013. The instability of extreme maxi- mum temperature in December and January improved. The instability of extreme minimum temperature in July instability also increased. The coefficient of variation of extreme minimum temperature in May was up to 287.3%. It is concluded that the instability of desert climate of Minqin County increased with global warming. The stability of climate is more worthy of attention.为研究在全球变暖过程中沙漠气候的稳定性,以中国西北部的民勤荒漠区1961~2013年的气象观测资料,运用一次线性趋势线和滑动标准差等方法,分析民勤荒漠气候在响应全球变暖过程中的不稳定性。结果表明：（1）1月和4月的平均气温的不稳定性增大,2月的等温日期提前10.36天。（2）12月和1月的极端最高气温的不稳定性增大,7月的极端最低气温的不稳定性增大,5月的极端最低气温的变异系数高达287.3%。研究结论认为,随着全球变暖民勤荒漠气候的不稳定性增强。气候的稳定性更值得人们关注。

关 键 词：Global warming Desert climate INSTABILITY Minqin 

分 类 号：P463.2[天文地球—大气科学及气象学]