黄淮海平原夏玉米生长季气候资源分配与利用特征

张金鑫, 葛均筑, 李从锋, 周宝元

Characteristics of Climate Resources Distribution and Utilization during the Growth Period of Summer Maize in Huang-Huai-Hai Plain

Zhang Jinxin, Ge Junzhu, Li Congfeng, Zhou Baoyuan

表7 夏玉米产量、生物量及千粒重与光、温、水资源的相关系数

Table 7 Correlation coefficients between summer maize yield, 1000-grain weight and the resources of light, temperature and water

指标 Index 有效积温Tx 辐射量Ra 降水量Pr 花前 Pre- flowering 花后 Post- flowering 全生育期 Whole growth period 花前 Pre- flowering 花后 Post- flowering 全生育期 Whole growth period 花前 Pre- flowering 花后 Post- flowering 全生育期 Whole growth period 产量Yield 0.34* -0.57** -0.30 0.20 0.08 0.19 0.53** 0.27 0.50** 千粒重1000-grain weight － -0.56** -0.24 0.11 0.07 0.05 0.11 0.08 0.12