气候变暖对宁夏引黄灌区玉米生产的影响  

Impact of Climate Warming on Maize Yield In Irrigation Area of Ningxia

作　　者：刘玉兰[1] 张晓煜[1] 刘娟 亢艳莉[1] 

机构地区：[1]宁夏气象防灾减灾重点实验室,宁夏银川750002 [2]银川市气象局,宁夏银川750002

出　　处：《玉米科学》2008年第2期147-149,共3页Journal of Maize Sciences

基　　金：宁夏气候对全球气候变化的响应及其机制(2004DIB3J121);中国气象局气候变化专项(CCSF2007-27)

摘　　要：1981～2004年在玉米生长发育期4月下旬至9月中旬对宁夏引黄灌区10个测站的气温进行分析。结果表明,宁夏引黄灌区玉米生长期的气候明显变暖。t检验表明,5～9月日平均气温的突变发生在1993年,突变后的气温比突变前升高了0.7℃。在玉米生长发育各阶段,气温都有所升高,但没有超过玉米生长发育的适宜温度范围。气候变暖为高产品种的引进创造了条件,使玉米单产变率减小,保证了玉米的高产稳产。By analyzing the temperature of 10 station during maize＇s growth in irrigation area of Ningxia, the resuits showed that the temperature of maize＇ s growing season increased obviously. T-test indicted that the temperature leap occurred in 1993, the temperature after 1993 was 0.7℃ higher than that before 1993. In every period of maize＇s growing season, the temperature increased, but it didn＇t exceed the fitting extent. The climate warming brought the good condition for high yield breed, decreased the variety of maize yield per area. In irrigation area of Ningxia, the contribution of climate warming to maize yield was 4.5%.

关 键 词：玉米 引黄灌区 气候变暖 

分 类 号：S513[农业科学—作物学]