冬小麦光能利用率动态分析

Dynamic Analysis of Solar Energy Use Efficiency of Winter Wheat

根据郑州市农业气象试验站1994—2004年小麦生育期、叶面积、干物质等观测资料，结合郑州地面气象基准站所观测的逐日辐射、降水、温度、日照等气象资料，采用统计分析的办法，通过计算得出小麦各生育阶段的光能利用率，并给出了各阶段光能利用率与阶段内大于零度的积温、降水、干物质、叶面积等的相关关系，定量描述了小麦在利用气候资源方面的能力，提出了提高光能利用的途径和方法。

According to the wheat observed data of growth period, leaves area, dry matter and so on from 1994 to 2004 in the Zhengzhou agrometeorological experimentation station, combined with the observed meteorological data of daily radiation , rainfall, temperature and so on in surface meteorological reference station, statistical analysis method was used, solar energy use efficiency of each growth stage of wheat was calculated, and the relative relationship between solar energy use efficiency of each stage and accumulated temperature, rainfall, dry matter, leave area and so on more than zero during this stage were supplied, climatic resources utilization ability of wheat was described quantitatively, and approaches and methods of light utilization improved were put forward.