播/收期对冬小麦-夏玉米一年两熟模式周年 气候资源分配与利用特征的影响

周宝元,马玮,孙雪芳,高卓晗,丁在松,李从锋,赵明

Effects of Different Sowing and Harvest Dates of Winter Wheat- Summer Maize Under Double Cropping System on the Annual Climate Resource Distribution and Utilization

ZHOU BaoYuan,MA Wei,SUN XueFang,GAO ZhuoHan,DING ZaiSong,LI CongFeng,ZHAO Ming

表2 不同播/收期处理冬小麦-夏玉米一年两熟模式周年积温分配

Table 2 Distribution of accumulated temperature between winter wheat and summer maize with different sowing/harvest dates

年份 Year 处理 Treatment 小麦季Wheat 玉米季Maize 周年Annual 积温 Accumulated temperature (℃) 分配率 Distribution rate (%) 积温 Accumulated temperature (℃) 分配率 Distribution rate (%) 积温 Accumulated temperature (℃) 两季比 Rate between two seasons 2015-2016 Ⅰ 2457.8a 46a 2894.1d 54d 5351.9a 0.8a Ⅱ 2281.5b 42b 3184.6c 58c 5466.1a 0.7b Ⅲ 2071.3c 38c 3381.2bc 62b 5452.5a 0.6c Ⅳ 1960.8d 36d 3517.4b 64ab 5478.2a 0.6c Ⅴ 1877.7e 34e 3694.2a 66a 5571.9a 0.5d 2016-2017 Ⅰ 2392.8a 46a 2862.5d 54d 5255.2b 0.8a Ⅱ 2254.0b 42b 3144.1c 58c 5397.9ab 0.7b Ⅲ 2009.6c 38c 3361.5b 62b 5371.1ab 0.6c Ⅳ 1916.2d 36d 3475.7b 64ab 5391.9ab 0.6c Ⅴ 1853.5e 34e 3641.9a 66a 5495.4a 0.5d 年份Year (Y) 0.016 0.696 0.005 0.489 0.002 0.488 处理Treatment (T) 0.001 0.007 0.001 0.002 0. 101 0.001 Y×T 0.575 0.549 0.132 0.521 0.320 0.642