黄淮海平原南部不同种植体系周年气候资源分配与利用特征研究

周宝元,葛均筑,侯海鹏,孙雪芳,丁在松,李从锋,马玮,赵明

Characteristics of annual climate resource distribution and utilization for different cropping systems in the south of Yellow-Huaihe-Haihe Rivers plain

Bao-Yuan ZHOU,Jun-Zhu GE,Hai-Peng HOU,Xue-Fang SUN,Zai-Song DING,Cong-Feng LI,Wei MA,Ming ZHAO

图2 2011-2015年不同种植体系单季及周年产量 A为周年产量; B为一年两熟体系第一季产量; C为一年两熟体系第二季产量; W-M: 冬小麦-夏玉米一年两熟; M-M: 双季玉米一年两熟; W-S: 冬小麦-夏大豆一年两熟; M: 一季春玉米。图柱上不同小写字母表示在0.05水平差异显著。

Fig. 2 Grain yield of different cropping systems from 2011 to 2015 A: the annual grain yield; B: the grain yield of first season; C: the grain yield of second season; W-M: winter wheat-summer maize double cropping system; M-M: double maize cropping system; W-S: winter wheat-summer soybean double cropping system; M: spring maize. Bars superscripted by different lowercases are significantly different at the 0.05 probability level.