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文县杨(Popnlus wenxianica),杨柳科杨属青杨派植物。主要分布在甘肃省文县境内海拔1200～1800m的山区河旁、谷地、阴湿地。扦插繁殖极易成活,病虫害少,生长迅速,5年生文县杨高达11.5m,胸径19.4cm,33年生高达34m,胸径80cm。1990年初经甘肃农大林学院冯自成等鉴定为杨属一新种,定名为文县杨①。文县杨干形通直圆满,尖削度小,速生健壮、材质好,抗病虫,耐水湿,根系发达,有较强的保持水土能力,特别适宜渠旁、沟谷、河岸、塘边和农田林网,是一很有发展前途的速生用材树种。
Popnlus wenxianica, Poplar, Populus, poplar, Mainly distributed in Wen County, Gansu Province at an elevation of 1200 ~ 1800m mountain river, valley, wetlands. Cutting propagation extremely easy to survive, less pests and diseases, rapid growth, 5-year-old Wenxian Yang up 11.5m, diameter 19.4cm, 33-year-old up to 34m, diameter 80cm. Early 1990 by Gansu Agricultural College, Feng Zicheng identified as a new genus Populus, named Wen County Yang ①. Wen County Yang Gan-shaped straight round shape, sharp taper small, fast-growing and robust, good material, resistance to pest, water wet, developed root system, strong ability to maintain water and soil, particularly suitable for drainage, valleys, banks, Farmland nets, is a promising growth of timber species.