摘要
利用1973—2010年肃北县的气象资料,对肃北县年际、年代、不同季节、农作物播种期等不同时段的气温变化趋势进行了分析。结果表明,近38 a肃北县年平均气温总体呈逐年上升趋势,以1983—1990年、1994—1998年及2003—2006年3个时段的升温趋势最为明显,1991—2000年增幅最大。不同季节及播种期的平均气温随时间变化均呈一定的上升趋势,以秋季的增温趋势最缓,春、冬季及播种期的温度随时间变化的波动性均较大,增温趋势明显。
The temperature variation trend of different times of inter-annual,age,different seasons,crops sowing were analyzed by using meteorological data of Subei County from 1973 to 2010.The results showed that the overall trend of annual average temperature in recent thirty-eight years was going up year by year.The warming trend of three times of 1983-1990,1994-1998 and 2003-2006 was most obvious,with a maximal increase slope from 1991 to 2000.Different seasons and the average temperature of sowing had a certain upward trend,which the fall of the warming trend was more slow,the volatility with time change of spring,winter and sowing temperature were quite large,the temperature increased trend obviously.
出处
《甘肃农业科技》
2012年第1期22-24,共3页
Gansu Agricultural Science and Technology
关键词
气温
变化趋势
特征分析
肃北县
Temperature
Change trends
Characteristic analysis
Subei county