胡桃楸、水曲柳均系珍贵速生阔叶树种,干形高大材质优良,深受用户欢迎。为满足生产生活需要,对两树种进行造林,对其生长速度差异进行比较、在1979年春用本局产一年生苗,在红光林场66林班,10—15°阳坡、沙质壤土退耕地上单株穴株造林,株行距1×2米,横山 Juglans manshuriensis, Ash are precious fast-growing broad-leaved species, high quality dry stem, welcomed by users. In order to meet the needs of production and life, afforestation of the two tree species was carried out to compare their differences in growth rate. In the spring of 1979, annual seedlings were planted in the forest of 66 forest classes, 10-15 ° sunny slope and sandy loam Strain point afforestation, plant spacing 1 × 2 meters, Yokoyama