Effects of site conditions on growth and wood properties of Populus×euramericana cv.'74/76'  

作　　者：Jianmin Fan Changjun Ding Shijie Wang Changming Ma Chao Zhang Yongtan Li Jinmao Wang Minsheng Yang Xiaohua Su 

机构地区：[1]Forest Department,Forestry College,Hebei Agricultural University,Baoding 071000,People’s Republic of China [2]Research Institute of Forestry,Chinese Academy of Forestry,Beijing 100091,People’s Republic of China [3]Hebei Key Laboratory for Tree Genetic Resources and Forest Protection,Baoding 071000,People’s Republic of China [4]Forestry College,Hebei Agricultural University,Baoding 071000,People’s Republic of China

出　　处：《Journal of Forestry Research》2023年第2期401-414,共14页林业研究（英文版）

基　　金：supported by the National Key Research and Development Program of China(Grant Nos.2021YFD2201205;2016YFD0600400)。

摘　　要：The growth and wood properties of 240 individual Populus×euramericana cv.’74/76’(hereafter poplar 107)trees planted in Hebei Plain,China was evaluated.Mean annual increments in height,breast height diameter and volume,as well as cellulose,hemicellulose and lignin contents,shrinkage,density,bending strength and modulus of elasticity in the heart wood and sap wood.Environmental factors influencing growth and wood properties were analyzed using correlation and stepwise regres sion.The results show that the coefficients of variation(CVs)of growth traits ranged from 10.6 to 22.4%.The CVs of the chemical properties of heartwood ranged from 4.3 to 30.2%,and for sap wood from 3.2 to 27.5%.The CVs of the physical and mechanical properties of heartwood ranged from 8.6 to 31.7%,and for sapwood from 6.4 to 29.9%.The results of one-way ANOVA showed that there were significant differences in growth traits and wood properties among sites.Soil pH,total and available phosphorus,total potassium,and soil organic matter were key soil factors affecting growth and wood properties of poplar 107,whereas mean annual ground temperatures and precipitation were the main climatic factors.To better cultivate poplar 107,area with less annual rainfall,slightly higher temperature and soil pH value close to neutral should be selected.

关 键 词：Poplar clone Environmental factors GROWTH Wood density Mechanical properties Wood chemical composition 

分 类 号：S792.11[农业科学—林木遗传育种]