论文部分内容阅读
欧美杨107又名“美丽天使”,曾获国家科技进步三等奖。该品种生长速度快,胸径年生长量3.5~4厘米,树高年增长量3.2~4米,5~6年生胸径30厘米,6~8年轮伐,667平方米蓄积木材30立方米左右。干直冠窄枝细,御风能力强。较抗病虫害,尤其对光肩星天牛具有明显抗性。育苗及造林成活率95%左右,在-30℃的低温地区可安全越冬,适于江淮流域及北方地区栽植。
Europe and the United States Yang 107, also known as “beautiful angel”, won the third prize of national science and technology progress. The variety grows fast, the annual growth of DBH is 3.5-4 cm, the height of trees is 3.2-4 meters, the diameter of 5-6 years is 30 cm, the rotation is 6-8 years and the volume of 667 square meters is about 30 cubic meters. Dry narrow crown Zhizhi thin, Yufeng strong ability. More resistant to pests, especially against Shouldered Asclepiadus obvious resistance. Seedling and afforestation survival rate of about 95%, at -30 ℃ in the cold areas can be safe for winter, suitable for the Yangtze and Huaihe River and northern planting.