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沙兰杨是德国人温特斯坦于三十年代选育成的杨树杂种无性系。我国从1954年开始从东德和波兰等国引种。二十多年来,先后在北京、辽宁、河南、山西、河北、山东、江苏、宁夏、陕西、甘肃、新疆等省(市、区)进行了引种试验。实践证明,沙兰杨具有生长快,适应性较强,适生范围广等特点。近年来,在河南、陕西、山东、河北、北京等地已大量繁殖推广,深受群众欢迎。一、生长快。沙兰杨在适生地区,尤其在水肥条件较好的地方,表现特别速生。据在河南省南召县调查,14年生沙兰杨,树高28米,胸径65.3厘米,单株材积3.56立方米。平均每年长高2米,长粗4.6厘米,材积增长0.26立方米。北京市大东流苗圃1974年营造的沙兰杨
Salmonella is a poplar clonal clone of the German species Winterstein bred in the thirties. Since 1954, China has introduced from countries such as East Germany and Poland. For more than 20 years, it has successively introduced test in Beijing, Liaoning, Henan, Shanxi, Hebei, Shandong, Jiangsu, Ningxia, Shaanxi, Gansu and Xinjiang provinces (cities and districts). Practice has proved that Saldania has the characteristics of fast growth, strong adaptability and wide range of suitable habitats. In recent years, Henan, Shaanxi, Shandong, Hebei, Beijing and other places have a large number of breeding promotion, welcomed by the masses. First, grow fast. Salmonella in the habitat, especially in better water and fertilizer conditions, the performance of special fast-growing. According to a survey in Nanzhao County, Henan Province, 14-year-old Sallam was 28 meters high and 65.3 centimeters in diameter with a plant volume of 3.56 cubic meters. The average annual growth of 2 meters, 4.6 cm long, volume growth of 0.26 cubic meters. Dalaidiao Nursery in Beijing in 1974 to create the Salmonella