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1979年底,我县从江苏省泗阳县引进的1—214、1—45,1—63、1—69、1—72和加侬6个意大利杨树品种、经过育苗和造林试验,取得了一定的成效。根据中国林业科学研究院李贻铨等同志研究认为,位于北纬23—33℃,年平均相对湿度为71—82％,土壤P_H值6.0—8,砂壤土或壤土可引种意杨,对比。我县位于北纬31°22′至31°41′,年平均相对湿度75％,四旁土壤多为冲积土和砂壤土P_H值6.5,我们认为引种意大利杨是可能的。
By the end of 1979, our county from Siyang County, Jiangsu Province, the introduction of 1-214,1-45,1-63,1-69,1-72 and Canadian Nongnong 6 poplar varieties, after nursery and afforestation experiments, made A certain result. According to Comrade Li Yiquan and other researchers from the Chinese Academy of Forestry, the average annual relative humidity is 71-82% at 23-33 ℃ and the soil P_H value is 6.0-8. My county is located between 31 ° 22 ’and 31 ° 41’ north latitude with an annual average relative humidity of 75%. Most of the soil on the four sides is alluvial and sandy loam with a P_H value of 6.5. We think it is possible to introduce Italian poplar.