章古台沙地3种针叶树生长规律对比研究  

Comparative Study of the Growth Rhythm of 3 Kinds of Conifer in Zhanggutai Sandy Land

作　　者：张日升[1,2] 

机构地区：[1]辽宁章古台科尔沁沙地生态系统国家定位观测站,辽宁阜新123000 [2]辽宁省固沙造林研究所,辽宁阜新123000

出　　处：《安徽农业科学》2017年第18期140-142,175,共4页Journal of Anhui Agricultural Sciences

基　　金：国家重点研发计划(2016YFC0500803-04)

摘　　要：[目的]研究章古台沙地3种针叶树生长规律。[方法]通过对章古台沙地樟子松(Pinus sylvestris var.mongolica)、油松(Prnus tabulaeformis)、赤松(Prnus densiflora)3种针叶树的解析木进行分析,比较3种针叶树的生长特点。[结果]8~16 a 3种针叶树的胸径和树高生长较快,16 a以后生长逐渐变缓。24 a以后赤松的树高生长比樟子松、油松快,32 a以后胸径生长比樟子松、油松快。樟子松和油松8~24 a时材积连年生长量增长较快,赤松在33~40 a时材积生长明显加快,最高可达0.014 2m3/a。[结论]该研究可为掌握针叶树种在沙地上的生长规律提供科学依据。[ Objective ] To study the growth rhythm of 3 kinds of conifer in Zhanggutai sandy land. [ Method ] Through the analysis to the analytic trees of Pinus sylvestris var. mongolica ,Pinus tabulaeformis and Pinus densiflora in Zhanggutai sandy land, the growth characteristics of 3 coniferous trees were compared. [ Result ] The results showed that the DBH and tree height of the 3 kinds of conifer grow faster in 8 - 16 years old, gradually grow slowly after 16 years old. The tree height and DBH of Pinus densiflora grow faster than Pinus sylvestris var. mongolica and Pinus tabulae- formis after 24 years old and 32 years old, respectively. Pint~ sylvestris vat. mongolica and Pinus tabulaeformis have rapid growth of volume current annual increment in 8 - 24 years old, the volume of Pinus densiflora significantly grows faster in 33 - 40 years old, which can up to 0.014 2 m^3/a. [ Conclusion]The study can provide a scientific basis for mastering the growth regularity of conifer in the sandy land.

关 键 词：章古台 樟子松 油松 赤松 生长规律 

分 类 号：S791[农业科学—林木遗传育种]