遮阴处理对2种云杉的生长量及保存率的影响  

Effects of Shading Treatment on Growth and Preservation Rate of Two Kinds of Picea asperata

作　　者：卓玛才仁 李开元 多杰才旦 Zhuomacairen;Li Kaiyuan;Duojiecaidan(Bureau of Forestry and Grassland,Hualong Hui Autonomous County,Haidong 810904,China)

机构地区：[1]化隆回族自治县林业和草原局,青海海东810904

出　　处：《防护林科技》2024年第5期19-21,29,共4页Protection Forest Science and Technology

基　　金：2020年中央财政林草科技推广项目(2020-TG-08)。

摘　　要：通过设置不同透光度的遮阴处理,开展遮阴处理对青海云杉和紫果云杉苗高、地径、冠幅等指标的年生长量及造林保存率的影响试验,结果表明:青海云杉和紫果云杉的生长量、成活率和保存率总体上表现为30%透光度遮阴处理组>60%透光度遮阴处理组>90%透光度遮阴处理组>空白对照组,说明遮阴处理有效提高了造林成活率及保存率。By setting shading treatments with different light transmittances,the effects of shading treatments on the annual growth and afforestation preservation rate of seedling height,ground diameter and crown width of Picea crassifolia and Picea purpurea were carried out.The results showed that the growth,survival rate and preservation rate of Picea crassifolia and Picea purpurea were generally expressed as 30%light transmittance shading treatment group>60%light transmittance shading treatment group>90%light transmittance shading treatment group>blank control group,indicating that shading treatment effectively improved the survival rate and preservation rate of afforestation.

关 键 词：青海云杉 紫果云杉 遮阴处理 生长量 保存率 

分 类 号：S791.180.5[农业科学—林木遗传育种]