干旱荒漠区沙地云杉幼苗越冬措施效果分析  

Effect Analysis on Overwintering Measures of Picea mongolica Seedlings in Arid Desert Region

作　　者：王飞[1] 刘世增[2] 李得禄[2] 刘有军[2] 

机构地区：[1]甘肃农业大学林学院,甘肃兰州730070 [2]甘肃省治沙研究所,甘肃兰州730070

出　　处：《甘肃林业科技》2014年第2期12-14,共3页Journal of Gansu Forestry Science and Technology

基　　金：林业公益性行业科研专项(201104036);甘肃自然基金(1308RJYA091)

摘　　要：在干旱荒漠区,对1年生沙地云杉容器苗在温室和自然条件下分别设置实验,对其越冬措施效果进行了比较分析.在室外条件下对沙地云杉幼苗采用土壤、沙子、塑料、塑料薄膜、麦草、树叶为覆盖材料,同时,对沙地云杉埋土越冬采用了土壤、沙子2种材料,设置了不同的覆盖厚度.研究不同覆盖材料和覆盖厚度对苗木越冬保苗率的影响.研究结果表明：（1）覆土对沙地云杉幼苗的保苗率明显高于覆沙的保苗率,覆土厚度与保苗率关系密切（R2=0.916 4）,覆土的厚度为10～15 cm保苗效果最好;（2）各种覆盖材料相比,覆土对沙地云杉幼苗越冬效果最好.Annual Picea mongolica seedlings as the research object, experiments were set up under the condition of the greenhouse and natural comparatively analyzed the effect of measures to protect Picea mongolica seeding overwintered in arid desert region. The test used sand, soil, plastics, ryegrass, and leaves as cover material, and with soil and sand submerging seedlings, and set up different overlay thickness. Research different cover material and cover thickness effects on survival rate of seedlings overwintering. The results showed that, （1） covering sand is better than covering soil to the survival rate of Picea mongolica seeding, closely associated with survival rate and covering thickness （R2 = 0.916 4）, and the best covering thickness is 10-15 cm; （2） compared with some covering materials, covering sand is best for Picea mongolica seeding overwintering.

关 键 词：干旱荒漠区 沙地云杉 越冬 防寒措施 保苗率 

分 类 号：S791.189.05[农业科学—林木遗传育种]