甘蓝型冬油菜北移种植的适应性分析
曹小东,刘自刚,米文博,徐春梅,邹娅,徐明霞,郑国强,方新玲,崔小茹,董小云,米超,陈其鲜

Analysis on the Adaptability of Northward Planting of Brassica napus
CAO XiaoDong,LIU ZiGang,MI WenBo,XU ChunMei,ZOU Ya,XU MingXia,ZHENG GuoQiang,FANG XinLing,CUI XiaoRu,DONG XiaoYun,MI Chao,CHEN QiXian
表2 冬油菜适应性试验种植区主要气象因子
Table 2 Main weather factors for winter rapeseed adaptation test planting area
生态因子 Ecological factor 天水 Tianshui 定西 Dingxi 白银 Baiyin
纬度 Latitude 34°33′ 35°58′ 36°12′
海拔高度 Altitude (m) 1210 2248 1898
最冷月平均气温The average temperature in the coldest month,ATCM (℃) -3.3 -5.9 -5.3
最冷月平均最低气温The average lowest temperature in the coldest month,ALTCM (℃) -8.2 -11.3 -11.1
年均温度 Annual average temperature,AAT (℃) 10.3℃ 7.5℃ 6.3℃
极端低温Extreme low temperature,ELT (℃) -15.0 -25.6 -23.5
无霜期天数 Free frost days,FFD (d ) 195 146 141
降水量 Precipitation (mm) 478.21 435.43 413.94
年平均蒸发量 Annual evaporation (mm) 1636.53 1632.93 1538.1