摘要
为了研究出辽西沙地上杨树人工造林中适宜的栽植深度,特设置了20、40、60、80cm4种栽植深度进行造林成活率以及苗木生长情况比较,结果表明,栽植深度为80cm的处理当年成活率最高,第2年苗木最高、胸径最粗,由此可知在辽西干旱地区深栽可以使杨树的根系与深层地下水接触,便于更好地吸收水分、养分,使杨树的抗旱能力更好,提高杨树的成活率,苗木长势更好,建议在杨树的造林中选择80cm的栽植深度。
In order to study the suitable planting depth for Poplar Plantation on sandy land in Western Liaoning Province, four planting depths of 20, 40, 60 and 80 cm were set up to compare the survival rate and seedling growth. The results showed that the survival rate of poplar planted at 80 cm depth was the highest in the current year, and the seedlings were the highest and the diameter at breast height was the thickest in the second year. The root system contacts with the deep groundwater to absorb water and nutrients better, to make the drought resistance of poplar better, to improve the survival rate of poplar, and to improve the growth of seedlings. It is suggested that the planting depth of 80 cm should be selected in the afforestation of poplar.
作者
董立国
Dong Liguo(State-owned Jianping Baishan Forest Farm, Chaoyang 122406)
出处
《湖北林业科技》
2019年第5期24-26,共3页
Hubei Forestry Science and Technology
关键词
栽植深度
杨树
造林
planting depth
poplar
afforestation
