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胡杨(Populus euphratica oliver)耐盐碱、耐大气干旱,对荒漠生境条件有很强的适应能力,是我国西北荒漠盐碱地营造防护林、用材林的优良树种,素有荒漠“劲松”之美称。根据我们多年试验研究,本文报导胡杨种子的特征、特性及育苗技术。试验地在宁夏贺兰县苗圃,海拔1106米左右,年平均气温8.5℃、7月份平均气温23.4℃、5℃以上积温3677.2℃,早霜出现在9月20日,晚霜出现在5月10日,生长期150天左右。年降水量202.8毫米。
Populus euphratica oliver is resistant to salinity and weather and has strong adaptability to desert habitats. It is an excellent tree species for shelterbelts and timber forests in saline-alkali lands in the desert northwest of China, and is known as the desert “Jinsong”. According to our many years of experimental research, this paper reports the characteristics of poplar seeds, characteristics and nursery techniques. The experiment was carried out in the nursery of Helan County in Ningxia with an elevation of about 1106 meters and an average annual temperature of 8.5 ℃. The average temperature in July was 23.4 ℃, and the temperature accumulated above 5 ℃ was 3677.2 ℃. Early frost appeared on September 20 and night frost appeared on May 10, Growth period of about 150 days. The annual rainfall of 202.8 mm.