毛乌素沙地樟子松壮苗深栽造林效果分析  

Study on Effect of Deep Planting on Strong Seedling of Pinus sylvestris in Maowusu Sandy Land

作　　者：曹继俊 陈旭 李庚 

机构地区：[1]横山县林木种苗站,陕西横山719100

出　　处：《林业调查规划》2014年第5期129-131,共3页Forest Inventory and Planning

摘　　要：为提高毛乌素沙地樟子松的造林效果,开展了壮苗深栽试验。在总结壮苗深栽技术要点的基础上,分析了壮苗深栽的造林效果及其生物量分配格局调节规律。结果表明,壮苗深栽可以提高根系分布层的土壤含水量,从而提高造林保存率和林木生长量。且随着林分年龄的增大,壮苗深栽与常规栽植林分的生长量差异越来越大。究其原因,壮苗深栽提高了各个构件的生物量投资,同时将更多的生物量分配于地上部分的生长发育。In order to reveal the effect of deep planting on strong seedling of Pinus sylvestris,comparing field experiments were carried out. Based on summary of technical key points of strong seedling with deep planting,the afforestation effects and regulating law of biomass distribution pattern have been analyzed in this paper. The results showed：（ 1） Soil moisture of root distribution layer of Pinus sylvestris using the technology of strong seedling with deep planting was obviously higher than control,and the survival rate and growth volume were all increased.（ 2） The difference of forest stand volume using technology of strong seedling with deep planting was greater than control with the forest stand age increasing. The technology of strong seedling with deep planting improved investment of biomass of each component,and allocated more biomass for aboveground growth and development.

关 键 词：樟子松 壮苗 深栽 造林效果 毛乌素沙地 

分 类 号：S791.253[农业科学—林木遗传育种] S723.11[农业科学—林学]