Factors affecting poplar wetwood characteristics  

作　　者：Qilin Zhang Xingyi Hu Qian Hu Jiawei Yang Tianyu Zhao Kebing Du 

机构地区：[1]College of Horticulture and Forestry Sciences/Hubei Engineering Technology Research Center for Forestry Information,Huazhong Agricultural University,Wuhan 430070,People’s Republic of China [2]Hubei Academy of Forestry,Wuhan 430075,People’s Republic of China [3]Xiangyang Academy of Forestry,Xiangyang 441052,People’s Republic of China

出　　处：《Journal of Forestry Research》2023年第5期1615-1626,共12页林业研究（英文版）

基　　金：funded by the Hubei Provincial Natural Science Foundation of China (2021CFB446);the National Natural Science Foundation of China (31570665);the National Key Research and Development Program of China (2021YFD2201202);the Fundamental Research Funds for the Central Universities (2662020YLPY017)。

摘　　要：Wet wood is an abnormal phenomenon in growing trees,which adversely affects growth,subsequent wood processing and economic values of wood products.In this study,the influences of factors such as clones,afforestation methods,site conditions and climate conditions on the characteristics of poplar wetwood were studied through field investigations in 27 clones from 48 sample plots in 28 counties.Results showed that the incidences of wetwood were almost 100%in all plots.Ratios of wetwood area among the48 plots differed from 15.1 to 90.2%.Wetwood area ratios,moisture contents and pH differed significantly between the 27 clones.Wetwood area ratios of the clones ranged from18.7 to 62.3%.Ratios of wetwood areas were positively correlated with wet wood moisture content and pH,tree age,and negatively correlated with pH of sap wood.The repeatability of wet wood area ratios was 0.52,moderately controlled by genetics.Wetwood moisture content and pH were highly controlled by genetics,indicated by the repeatability of 0.91 and 0.89,respectively.There were significant differences in wetwood area ratios,moisture content and pH between different site conditions,afforestation methods,and geographical regions.Sloping land had the lowest wetwood area ratios and moisture content among four types of sites.Afforestation by direct seeding and rooted cuttings had the lowest wetwood area ratios and moisture content,respectively.In the three geographical regions,the Yellow River Basin had the lowest wetwood values of all three factors.

关 键 词：POPLAR WETWOOD CLONES Site conditions Afforestation methods 

分 类 号：S792.11[农业科学—林木遗传育种]