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杨树是我省林业生产中重要的用材树种之一,具有速生、抗旱、繁殖容易、防风固沙等种种优点,在“绿化祖国”、“实行大地园林化”的事业中有着重要的意义。杨树木材的用途很广,是造纸、火柴、家俱、木纤维、胶合板等各种工业的重要原料。1976年11月,中央农林科学院根据农林部的指示,在北京召开了全国杨树普查鉴定会议,号召全国各省区,在开展杨树普查的基础上,推广良种,争取在1980年实现全国杨树造林良种化。本着这个目标,我校根据十多年来对河西走廊杨树调查和外来杨树的引种,提出我省干旱灌溉区的杨树良种,以供推广。
Poplar is one of the important timber species in forestry production in our province. It has many advantages such as fast growing, drought resistance, easy propagation and windbreak and sand fixation. It is of great significance in the cause of “greening the motherland” and “implementing the earth gardenization”. Poplar wood is widely used, is an important raw material for paper, matches, furniture, wood fiber, plywood and other industries. In November 1976, the Central Academy of Agriculture and Forestry, in accordance with the instructions of the Ministry of Agriculture and Forestry, held a national poplar census appraisal meeting in Beijing, calling on all provinces and autonomous regions in the country to popularize the improved varieties on the basis of poplar census and strive to achieve poplar planting in the country in 1980 Afforestation improved varieties. In line with this goal, based on more than a decade of investigation of the poplar trees in the Hexi Corridor and the introduction of exotic poplar trees, our school proposed poplar varieties in arid irrigated areas in our province for promotion.