107杨人工林密度对林木生长的影响  

Effects of Stand Density on Growth of Populus × euramericana‘Neva’Plantations

作　　者：田新辉[1] 孙荣喜[1] 李军[2] 赵长海[2] 杨敏生[1] 

机构地区：[1]河北农业大学,保定071000 [2]河北省衡水市林业局,衡水053000

出　　处：《林业科学》2011年第3期184-188,共5页Scientia Silvae Sinicae

基　　金：国家林业公益性行业科研专项经费重大项目"杨树产业资源材培育及新产品开发关键技术研究"(201004004)

摘　　要：107杨（Populus×euramericana＇Neva＇）是欧洲黑杨和美洲黑杨的杂交品种,由中国林业科学研究院张绮纹等科技人员经过10多年引育成功的欧美杨优良品种,具有生长快,易管理,耐旱,耐寒及抗病虫等特性,是造纸的优质原料,还可制作密度板、家具、火柴、筷子等,用途十分广泛（高俊华,2008）。107杨已在我国黄淮以北、辽河以南广泛种植,区域包括山东、安徽、河北、辽宁等省（席忠诚等,2008）,已成为营造工业原料林和防护林的首选杨树品种之一。Based on investigation of 6 year old plantations of Populus × euramericana ‘Neva’in Hengshui,the relationship between stand density and growth was studied.The results showed that there was negative relationship between stand density and stand mean diameter,mean tree height,mean crown width and mean individual volume.The average tree＇s diameter,height,crown width and volume for individual trees decreased with the increase of stand density in a certain range.The ratio of height to diameter of trees increased with high density.Stand volume first increased with the stand density in low density range,however decreased with the increase of stand density in higher density range.The optimum plantation density for stand growth was 1 000-1 200 stem·hm-2 in Taocheng District and 800-1 000 stem·hm-2 in Wuyi County.

关 键 词：107杨 人工林 林分密度 林分生长 

分 类 号：S753.3[农业科学—森林经理学]