摘要
在陕北毛乌素沙地推广樟子松"六位一体"造林技术,调查、观测半固定沙丘迎风坡、半固定沙丘坡顶、固定沙丘迎风坡、固定沙丘坡顶、丘间地等5种立地类型造林成活率、幼树新梢生长量和冠幅,结果为在5种立地类型"六位一体"技术造林成活率平均为92.1%,高于传统技术造林9.2百分点;栽植当年(2015年)"六位一体"技术幼树新梢生长量平均为10.8cm,高于传统技术1.3cm,栽植第二年(2016年)"六位一体"技术幼树新梢生长量平均为9.6cm,高于传统技术2.4cm;在栽植第二年(2016年)5种立地类型"六位一体"技术幼树冠幅平均为57.3cm,比传统技术高5.7cm;"六位一体"技术在提高造林成活率、促进幼树高生长和冠幅生长的效果显著性尽管不尽一致,但都有一定促进作用,值得推广。
＂Six in one＂ afforestation technologies of Pinus sylvestris var. mongolica were applied to five different site conditions in Mu Us desert： windward slope of semi--fixed sand dune, slope top of semi--fixed sand dune, windward slope of fixed sand dune, slope top of fixed sand dune and land be- tween sand dunes. The mean survival rate of all five conditions together reached 92.1%, 9.2~ over the traditional technologies. The mean shoot growth on the planting reached 9.6 cm,2.4 cm over the traditional planting methods. At second year, the mean canopy width of young trees was 57. 3cm, 5.7 cm higher than the tree canopy by traditional planting. ＂Six in one＂ afforestation technologies are effective to improve the survival rate, promote shoot growth of young trees and canopy growth al- though there are variation among them.
出处
《陕西林业科技》
2017年第2期30-33,共4页
Shaanxi Forest Science and Technology
关键词
陕北毛乌素沙地
“六位一体”造林技术
樟子松
成活率
新梢生长量
Mu Us desert in northern Shaanxi
＂Six in One＂ afforestation technologies
Pinus sylves- tris var. rnongolica
survival rate
shoot growth of young trees.
