论文部分内容阅读
根据桉树枯病发生及流行规律的定点观测资料，采用灰色系统理论的方法，建立了广东吴川林场和斗门县林业局试验林桉树青枯病预测模型；依发病率与相应的旬平均温度、相对湿度和降雨量，应用多元回归方法，建立了桉树青枯病多元线性回归预测模型．经检验和进行实际验证，证明上述模型均有较高的可信度．并表现为灰色系统模型的精度高于多元线性回归模型．
According to the observed data of eucalyptus sheath blight and epidemic regularity, the prediction model of the experimental plantation wilt of eucalyptus in Wuchuan Forest Farm and Doumen County of Guangdong Province was set up by the method of gray system theory. According to the incidence and the corresponding average temperature of ten days, Humidity and rainfall, multivariate regression method was used to establish multivariate linear regression prediction model of eucalyptus bacterial wilt. After verification and actual verification, it is proved that the above models have higher credibility. And the performance of the gray system model is higher than the multivariate linear regression model.