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综合相关性分析和主成分分析的结果、明确了冰核细菌溃疡病发生与环境条件的关系。选出了影响病害发生的主要限制因子:≥10℃年积温、年平均气温、5月份平均气温、7月平均气温、1月份平均地温、土壤类型、无霜期(霜冻次数和日期)、年降水量、年平均相对湿度。冰核细菌溃疡病流行的时间动态以理查德生长模型为最优生长模型。研究还说明杨树细菌溃疡病属于多循环的复利病害。
According to the results of comprehensive correlation analysis and principal component analysis, the relationship between the occurrence of ice-core bacterial ulcer disease and environmental conditions was clarified. The main limiting factors affecting the occurrence of diseases were selected: ≥10 ℃ annual accumulated temperature, annual average temperature, average temperature in May, average temperature in July, average ground temperature in January, soil type, frost-free period (frost number and date), annual precipitation , The average annual relative humidity. The time course of the prevalence of ice-core bacterial ulcer disease is based on Richard growth model as the optimal growth model. The study also shows that poplar bacterial ulcer disease is a multi-cycle compound disease.