河北平泉地区油松人工林生长过程的研究  

A study of growing process of Pinus tabulae formis plantation in Pingquan,Hebei

作　　者：王伟[1] 马履一[1] 贾忠奎[1] 段劼[1] 王凯[1] 陈雪[1] 谷凌云[1] 游伟斌[1] 王西洋[1] 

机构地区：[1]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083

出　　处：《中南林业科技大学学报》2012年第6期13-17,共5页Journal of Central South University of Forestry & Technology

基　　金：国家林业局林业公益性行业科研专项项目(201004021);教育部科技创新计划项目(BLJD200904);林业科学技术推广项目([2011]44号);中央高校基本科研业务费专项(TD2011-08);国际科技合作项目(2009DFA92900)

摘　　要：采用树干解析的方法对河北平泉地区不同林龄油松人工林生长过程进行了分析。研究表明:油松人工林胸径的连年生长量在10～15 a时达到生长高峰,峰值为0.39～0.44 cm.a-1,平均生长量的高峰出现在15～30 a时,峰值为0.28～0.30 cm.a-1,两者在17～26 a时相交;树高的连年生长量的峰值出现在10～20 a,峰值为0.28～0.30 m.a-1,平均生长量在5～20 a时达到高峰,峰值为0.25～0.28 m.a-1,在5～20 a时连年生长量与平均生长量相交;油松材积的连年生长量在25～40 a时出现其最大值,峰值为0.000 80～0.002 99 m3.a-1,之后逐年下降,与平均生长量在35年前后相交;该地区油松人工林应在15～20年之间进行第一次生长抚育,在35年前后则达到数量成熟,此期间应进行主伐;同时研究结果显示:胸径Y最优生长方程为:Y=exp(2.810-19.311/T);树高最优生长方程为:Y=exp(2.348-11.324/T);材积最优生长方程为:Y=0.005-0.001T+0.000 05T2(T为树龄)。The growing process of Pinus tabulaeformis plantation in Pingquan of Hebei was investigated by adopting the method of stem analysis. The results indicate that the peak value of current annual diameter increment appeared at age of 10～15 years, the value was 0.39～0.44 cm.a-1, and that of the average annual increment appeared at age of 15～30 years, the value was 0.28～0.30 cm.a1, the two curves intersected at age of 17～26 years; The peak value of tree height current annual increment （the value was 0.28～0.30 m.a1） appeared at age of 10-20 years and the average annual increment （the value was 0.25～0.28 m.a1） appeared at age of 5-20 years, the two increment curves intersected at age of 5～20 years; The peak value of volume current annual increment appeared at age of 25-40 years, the value was 0.000 80 ～ 0.002 99 m^3.a^-1, the curve of volume current annual increment and average annual increment intersected at the age of 35 years. The studying results show that the Pinus tabulaeformis forest should be firstly fostered by thinning probably at age of 15～20 years, and by final cutting at age of 35 years according to the local management targets. The superior diameter growth equation is Y=exp（2.810-19.311/T） and the height growth equation is Y=exp（2.348-11.324/T）, the tree volume growth equation is Y=0.005- 0.001 T＋0.00005/～.

关 键 词：油松 人工林 生长过程 

分 类 号：S791.15[农业科学—林木遗传育种]