2005年春,湖北公安县从南京林业大学引进杨树品种20余种,通过与本地优势种“中公一号”杨树混栽对比造林试验,发现一个品种美洲黑杨(引进8株,死亡1株,现存7株)生长特别迅速,且抗逆性特强,其综合性状不仅大大超过了“中公一号”杨树,而且超过了其它一同引进的品种。该品种在粗放 In the spring of 2005, more than 20 varieties of poplar were introduced from Nanjing Forestry University in Hubei Gong’an County. By comparing with the mixed planting of poplar “Zhonggong No.1” with the local dominant species, we found that one species Populus nigra (8 introduced and 1 dead) , The existing seven strains) grow particularly rapidly, and the super-strong resistance, its comprehensive trait not only greatly exceeded the “one of the” poplar, and more than the other with the introduction of varieties. The variety is extensive