浙江庆元青榨槭生长规律研究  

Growth Regularity of Acer davidii in Qingyuan of Zhejiang

作　　者：张东北 吴小林 吴初平[2] 袁位高[2] ZHANG Dong-bei;WU Xiao-lin;WU Chu-ping;YUAN Wei-gao(Qingyuan Experimental Forest Farm of Zhejiang, Qingyuan 323800, China;Zhejiang Academy of Forestry, Hangzhou 310023, China)

机构地区：[1]浙江省庆元县实验林场,浙江庆元323800 [2]浙江省林业科学研究院,浙江杭州310023

出　　处：《浙江林业科技》2018年第6期14-18,共5页Journal of Zhejiang Forestry Science and Technology

基　　金：浙江省重大科技专项重点农业项目(2015C02016)

摘　　要：应用庆元县实验林场交溪门林区32年生青榨槭Acer davidii树干解析数据和野外调查数据研究其生长规律。结果表明:(1)树高和胸径早期和后期均生长较慢,其快速生长期集中在10～25 a之间,前10 a为最佳抚育期;(2)材积的连年生长量随年龄的增加不断增长,但平均生长量在32a中并没有达到最大值,因此不能确定青榨槭的数量成熟龄;(3)拟合的数学模型均具有较高的精度,青榨槭树高、胸径和材积生长过程的模型依次为:H=0.551-0.003 a+0.595 a^2(R2=0.989);DBH=-0.471+0.318 a+0.027 a^2-0.001 a^3(R2=1.000);V=0.005-0.002a+3.08×10^(-6) a^3(R^2=0.999)。研究结果为青榨槭的繁育推广提供基础性材料。Investigations were conducted on sample plots with Acer davidii as dominant tree at mixed forest of evergreen and deciduous forest in Qingyuan of Zhejiang province in December of 2013. Stem analysis of the highest A. davidii tree showed that it was 32-year, with slow growth at the early and later stage of the life, quick growth at 10-25-year, the best tending period was before 10-year. Current annual increment of volume increased with age, but the mean one did not top at 32-year. The models for height growth, DBH and volume was H = 0.551-0.003a+ 0.595a2 (R2 = 0.989), DBH =-0.471+ 0.318a+ 0.027a2 -0.001a3 (R2 = 1.000), V = 0.005-0.002a+ 3.08×10-6a3 (R2 = 0.999).

关 键 词：青榨槭 天然林 生长规律 模型 

分 类 号：S792.35[农业科学—林木遗传育种]