小叶杨(Populus simonii Carr)、小青杨(Populus pseudo—simonii kitaga.)是辽西风沙地区的乡土树种。建国以来,在辽西风沙地区营造了大面积的防护林,对改变这个地区的自然面貌、维持生态平衡、调节气侯、控制水土流失、防治风沙、干旱、保障农牧业高产稳产和解决人民生活用材,都起到了重要作用。据辽宁省林业科学研究所1978年调查统计,朝阳、阜新、锦州、昭盟、铁岭、沈阳 Populus simonii Carr and Populus pseudo-simonii kitaga. Are native species in the sandstorm region of western Liaoning. Since the founding of the People’s Republic of China, a large area of ​​shelterbelts has been created in the sandstorm areas in the western Liaoning Province. This will change the natural appearance of the area, maintain the ecological balance, regulate the climate, control soil and water loss, prevent sandstorms and droughts, ensure high output and stable production of livestock and livestock husbandry, , Have played an important role. According to the Liaoning Provincial Forestry Science Research Institute survey in 1978, Chaoyang, Fuxin, Jinzhou, Zhao League, Tieling, Shenyang