【摘要】 采用相关分析、回归分析及通径分析的方法,综合分析了肇州地区玉米气象产量与降水量和积温的关系。结果表明,玉米气象产量与生育期内降水呈极显著正相关,相关系数为0.74;与生育期内积温呈极显著负相关,相关系数为-0.48。对玉米气象产量与生育期间降水量和积温进行二元线性回归拟合表明,可以用二元回归方程Y=10267.62+7.57x₁-4.58x₂,对玉米气象产量与生育期间降水量和积温的关系进行描述,对各变量进行偏回归分析以及通径分析都表明降水量对玉米气象产量的影响要大于积温对玉米气象产量的影响,对肇州地区而言降水量对气象产量起正向的促进作用,积温起负向作用。更多还原

【Abstract】 Correlation analysis,regression analysis and path analysis were used to analyze the influence of precipitation and accumulated temperature on maize meteorological yield.The results showed that the meteorological yield has a extremely notable relationship with both precipitation and accumulated temperature during the growing period, with the correlation coefficient of 0.74 and -0.48,respectively.The relationship between maize meteorological yield and the two meteorological factors could be described by binary regression equation;Y=10267.62+7.57x₁- 4.58x₂.Both regression analysis and path analysis showed that the effects of precipitation on maize meteorological yield was larger than that of accumulated temperature.The precipitation had an positive effect and the accumulated temperature had a negative effect on maize meteorological yield.更多还原