塔里木灌区近40年气候变化研究  

A Study of Climate Change in Tarim Irrigation Area Dduing 1961-1999

作　　者：韩路[1] 王海珍[1] 曹新川[1] 

机构地区：[1]塔里木农垦大学植科院,新疆阿拉尔843300

出　　处：《干旱气象》2002年第1期1-3,7,共4页Journal of Arid Meteorology

摘　　要：根据塔里木灌区阿拉尔气象站 1 96 1年 1月～ 1 999年 1 2月的气温及降水资料 ,对塔里木灌区近4 0a的气候变化做了分析 ,分析结果表明 ,近 4 0a塔里木灌区年降水量呈上升趋势 ( 4 .6 0mm/ 1 0a) ,秋季降水量却呈下降趋势 ( -3.4 5mm/ 1 0a) ;年平均气温呈上升趋势 ( 0 .0 6 5℃ / 1 0a) ,冬季变暖的趋势 ( 0 .84 9℃ / 1 0a)远大于夏季变凉的趋势 ( -0 .1 71℃ / 1 0a) ;年极端低温的上升趋势 ( 0 .5 6 9℃ / 1 0a)大于年极端高温的下降趋势 ( -0 .0 95℃ / 1 0a)。可以以 70年代末为界将塔里木灌区气候近 4 0a分为冷、暖两个阶段 ,前为冷期 。According to the data of temperature and precipitaion inTarim irrigation area from January 1961to December 1999,the climate change of Tarim irrigation area was analysed.The results show that the precipitation of Tarim irrigation area for 40 years appears to be ascending(4.6mm/10a),the precipitation in autumn appears to be descending(-3.45mm/10a),and the temperature appears to be going up(0.065℃/10a),especially in the latter period of 1990's.The warming trend in winter is more obvious than the cooling trend in summer and the ascending trend of annual extreme low temperature is more obvious than the descending trend of annual extreme high temperature.For this reason,the climate of Tarim irrigation area for 40 years might be divided into 2 stages,the former is a cold period,and the latter is a warm period.

关 键 词：塔里木灌区 气候变化 分析 

分 类 号：P467[天文地球—大气科学及气象学]