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毛白杨树干端直,是北京极好的行道树种。特别是雄性毛白杨春季不飞絮,对环境无污染,生长迅速,见效快,在园林绿地中经常应用。在唐山地区,雄性毛白杨多是春季栽植。但自1996年起我们连续3年在初冬栽植,成活率均为100％。所用方法如下: 1.栽植时间每年11月中下旬毛白杨全部落叶后尽早栽植。 2.树木规格干胸径4～20厘米的雄性毛白杨皆可,但以胸径10厘米左右的成活率最好。定干高度根据不同的园林用途而定,一般5～6米不等。裸根直径应为胸径的
Poplar trunk straight, is an excellent roadside tree species in Beijing. In particular, male Populus alba does not fly in spring, no pollution to the environment, rapid growth, quick, often used in the garden green. In Tangshan area, mostly male poplar planting in spring. However, since 1996, we planted three consecutive years in early winter and the survival rate was 100%. The methods used are as follows: 1. Planting time in mid-late November all white aspen planted as soon as possible after deciduous. 2 tree specifications Dry chest diameter 4 to 20 cm of male Populus can be, but the diameter of 10 cm or so the best survival rate. Drying height according to different purposes of the garden, generally 5 to 6 meters. Bare root diameter should be DBH