增加土壤温度对高海拔地区小叶丁香生长的影响  

Effects of Increasing Soil Temperature on Growth of Syringa microphylla in Alpine Region

作　　者：郑娜 齐培风[2] 袁雅丽 

机构地区：[1]贵阳森林资源资产评估有限公司,贵州贵阳550003 [2]青海省互助县北山林场,青海海东810500

出　　处：《防护林科技》2018年第6期19-20,共2页Protection Forest Science and Technology

摘　　要：为提高小叶丁香在高海拔冻土地区的生长量以及成活率,采用自控温电热带将电能转化为热量,进行土壤增温,试验设计分为2.0±1℃,4.0±1℃,6.0±1℃不同增温梯度,比较不同增温条件下小叶丁香的成活率,以及株高、冠幅、地径的增长量变化;对比得出最适小叶丁香生长的最佳土壤增温量。结果表明:土壤温度增加4.0±1℃时,小叶丁香的成活率达到最大值,为86.5%;小叶丁香的株高、地径、冠幅增长量都达到最大,分别为17.53cm、0.83cm、17.63cm。综合各指标分析,在试验区土壤温度增加4.0±1℃最适宜小叶丁香的生长。In order to improve growth and survival rate of Syringa microphyllain high altitude permafrost area,the electric energy was transformed into heat by using self-controlled thermoelectric tropics by using artificial soil warming,the experimental design is divided in to different temperature gradient(2.0℃ ±1℃,4.0℃ ±1℃,6.0℃ ±1℃),Survival rate and plant height,crown width,diameter change were compared.the optimal soil warming which is suitable to syringa microphylla was obtained.Result shows that the survival rate of clove reach the maximum value(86.5%)when the soil temperature increase by 4.0℃ ±1℃;the plant height,ground diameter and crown width of Syringa microphylla are also increased by 17.53 cm,0.83 cm,17.63 cm,respectively.The increase of soil temperature of 4.0℃ ±1℃in the experimental area is the most suitable for growth of Syringa microphylla.

关 键 词：土壤温度 小叶丁香 生长量 

分 类 号：Q938.13[生物学—微生物学]