1951—2010年东北地区玉米及水稻低温冷害统计分析

Chilling Injury Statistical Analysis of Corn and Rice in Northeast China from 1951 to 2010

利用东北地区163个观测站1951—2010年的逐日平均气温、≥10℃积温资料,根据《中华人民共和国气象行业标准水稻、玉米冷害等级》(QX/T101—2009)划分标准,对历年东北地区玉米及水稻低温冷害进行统计分析,结果表明,障碍型低温冷害发生率呈增加趋势,延迟型冷害呈减少趋势。

Using 163 observation stations’daily average temperature,≥10℃accumulated temperature data of the Northeast China from 1951 to 2010,according to classification criteria of People’s Republic of China Meteorological Industry Standard Rice,Corn Chilling Injury Rating（QX/T101-2009）,the corn and rice chilling injury of Northeast China for the recent years was analyzed.The results indicated that the incidence of low-temperature cold damage barriers showed increasing trends,delayed cool injury showed a decreasing trend.