黑龙江近46年的气温变化-自然灾害学报.PDF

18 3 Vo.l 18 No. 3 2009 6 JOURNAL OF NATURAL DISASTERS Jun. 2009 : 1004- 4574(2009) 03- 0158- 07 46 1 2 1 于 梅 , 邢俊江, 于洪敏 ( 1. , 150030; 2. , 158888) : 63 1962- 2007, ,, , , ; , , , , , : : P467 : A A ir temperature change in Heilongjiang Province in recent 46 years 1 2 1 YU M ei, XIN Junjiang, YU Hongm in ( 1H eilongjiang ProvinceClmi ateCenter, Harbin 150030, China; 2Heilongjiang ProvinceHegang City Observatory, H egang 158888, China) Abstract: Temperature data from 63 observatories inH eilongjiangProvince from 1962 to 2007were chosen to ana lyze the temperature tendency and its spatialdistributionThe vesult shows that the increasing tendency of average temperature is larger than that ofwhole country, the increasing speed of the lowest temperature is faster than that of the highest temperature, and especially, theDaxinganling andXiaoxinganlingmountains are themostobvious areas of temperature increasing; and the temperature increase in thew inter seasons ismore obvious than that in summer seasons. On the contrary, the lowest temperature in Mohe observatory shows the decreasing tendency in autumn. Clmi atewarm ing causes the frostdays to decrease, and the hottestdays to increase, and the frost- free seasons to extend. K ey words: clmi ate change; temperature tendency; extreme temperature , IPCC( 1906- 2005) 0. 74 ; , 0. 5~ 0. 8 , [ 1- 4] , 50a, , 50a, 0. 25 /10a 1. 3 , 10, 14, ,, [ 11] , , ,, : 2008- 05- 21;