【摘要】 高节竹出笋高峰日的预测,选用与高节竹出笋高峰日影响密切的关键因子,即3月份平均气温和3月份的总降雨量,以高节竹出笋量最高的1天定为高峰日,建立回归方程。经对1989-2001年13年的历史回报及2002年的试报,符合情况较好,经卡方检验,置信度范围在99％以内。表4,参3。更多还原

【Abstract】 The forecast choose key factors relative to the bamboo shoot fastigium of Phyljostachys Prominens. x1 is average air temperature of March and x2 is the all rainfall. By the fastigium day April 1 = 1, the regression equation is y = 31.1313 - 2.2672x1 - 0.00914x2.On history records of 13 years from 1989 to 2001 and the trial report of 2002, the equation is accord with facts.The believable degree is inside 99% by the way of x2 test.更多还原