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机构地区:[1]山西省林业科学研究所
出 处:《山西林业科技》1998年第1期1-7,12,共8页Shanxi Forestry Science and Technology
基 金:国家"九五"科技攻关项目
摘 要:在三倍体毛白杨生长特性研究的基础上,系统分析了“林纸”产业化的关键技术。结果表明:(1)三倍体毛白杨品种之间胸径生长差异极显著,材积增益191%。(2)三倍体毛白杨最适于农田林网造林,其材积是道路林网的2倍;(3)从丰产性、抗逆性和材性等27项指标来看,三倍体毛白杨是很理想的造纸原料;(4)多点G×E交互测定表明,生长遗传稳定性差,须对品种跟踪监测;(5)轮伐期合理确定为河南省5a,河北、山东省及北京市7a,山西省5a和9a;(6)“林纸”产业结合的纸、林、苗三方年利税比为40∶20∶1。On the basis of study of triploid Chinise White Popular's growth characters,key techniques of ‘forest-paper’ industrialization were analysed synthetically.The results are as follows:(1)There are significant differences in d.b.h increaments between species.(2)The popular are more suitable for planting on farmland forest-network than on road forest-network,the volume of wood within farmland forest-network being twise as high as of the latter.(3)Analyses on 27 indexes with the popular such as high-yield property,resistance,and wood characters showed that it's a ideal material to make paper.Multiple place G×E interaction tests indicated that its genetic stability in growth is not good,and the varieties should be monitored by trace.(5)Rational rotation determined is that 5 a in Henan,7a in Hebei,Beijing,and Shandong,5 a and 9 a in Shanxi.(6)In the ‘forest-paper’ industry structure,the proportion of paper,forest,and seedling in annual profit and tax is 40∶20∶1。
分 类 号:S792.117[农业科学—林木遗传育种]
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