沧洲地区地处河北平原东部,地势平坦低洼,盐碱荒地较多,河流沟渠纵横,发展林业潜力很大。但该区树种资源少,森林覆盖率低(1981年才达到6.7％),林业发展速度远远赶不上形势的需要。为了加速林业建设,迅速推广良种,我所于1974年冬在省林科所的大力支持下,营造了杨树品种 Cangzhou is located in the eastern part of Hebei Plain, flat low-lying, saline-alkali wasteland more vertical and horizontal river ditches, great forestry development potential. However, there are few tree species resources and low forest coverage in the area (only 6.7% in 1981), and the development of forestry is far behind the need of the situation. In order to speed up the construction of forestry and popularize the high-quality seeds quickly, in the winter of 1974, under the strong support of the provincial forestry institute, we created poplar varieties