| 科尔沁沙地杨树深栽技术初报 |
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| 引用本文： | 杨淑敏,郭连生,宋保民,王明智,刘玉军.科尔沁沙地杨树深栽技术初报[J].内蒙古林学院学报,1999(1). |
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| 作者姓名： | 杨淑敏 郭连生 宋保民 王明智 刘玉军 |
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| 作者单位： | 内蒙古林学院，哲里木盟兴隆沼林场 |
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| 摘 要： | 通过对钻孔深栽技术和普通造林技术比较研究表明，成活率二者无显著差异，但在高径生长量上差异较大。进一步研究表明，钻孔深栽是科尔沁沙地适宜的造林技术，特别是地下水位较低地类。研究了０．７－３．０ｍ７个深度的成活率和高径生长量表明，１．３ｍ－３．０ｍ５个深度之间成活率、高径生长量无显著差异，０．７ｍ－１．３ｍ之间差异显著（α＜０．０５）。１．３深度造林成活率已达９８％，因此１．３ｍ深度应是生产实践中推广使用深度。对３×３ｍ、４×４ｍ、５×５ｍ、６×６ｍ和６×９ｍ５个密度的６年高径生长量和第１０年蓄积量预测研究表明，５×５ｍ密度的蓄积量均大于其它密度，进而指出，科尔沁沙地适合的深栽造林密度为５×５ｍ。本文对深栽利用的苗木贮藏方式和造林时间进行分析研究得出，造林时间春秋两季皆宜，秋季造林宜早，春季造林可早可晚；春季造林苗木必须冬贮（平放、埋深１ｍ）。
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| 关 键 词： | 杨树 深栽技术 科尔沁沙地 |
A PRELIMINARY STUDY ON DEEP PLANTING\=OF POPLAR ON KORQIN SANDY LAND S |
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| Authors: | YANG Shu min\\ GUO Lian sheng\\ SONG Bao min\\=WANG Ming zhi\ LIU Yu jun\\= |
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| Institution: | YANG Shu min\+1\ GUO Lian sheng\+1\ SONG Bao min\+2\=WANG Ming zhi\+2 LIU Yu jun\+2\= |
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| Abstract: | Study on between deep planting and general
planting shows that there is significant difference between increment,but not between survival
rate.Further research confirms that deep planting technique is applicable for Korqin sandy
lands,and for the land with lower underground water table particularly.Compared the survival
rate and increment of seven depths(1.3-3.0m),there is significant difference between survival
rate and increment among depths(0.7-1.3m),but not among depths from 1.3m up to 3.0m
underground.The anticipated survival rate has obtained from 1.3m depth.So 1.3m depth is
suitable to large-scale applications.\=\ \ To compare six-year increment and ten-year stocking of
five kinds of densities,the results shows that ten-year stocking and growth rate at 55m density
is more than other densities'.So 55m density is the best.\=\ \ Different planting methods have
been developed for Autumn and Spring.In Autumn,full saplings are installed early after leaves
fall;For Spring planting saplings have to \ \ |
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| Keywords: | Poplar Deep-planting technique Korqin sandy landbe buried at 1m underground horizontally during Winter \= |
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