摘要
本文采用分层切割法和壕沟全挖法对江苏省新沂市农田林网中，４年生主要的杨树无性系（Ｗ－４６杨，Ｉ－６９杨，ＮＬ－８０１０５杨和ＮＬ－８０２０５杨）的地上部分生物量以及根系生物量进行了测定和分析。结果表明，ＮＬ－８０２０５杨不仅平均单株的生物量最大，而且树干的形质优良。因此，在平原农田林网的经营中，选择ＮＬ－８０２０５杨，既可以提高营林的收益，又能够增强林网的防护效果。
The above-ground proportion of the biomass and the root biomass of four type of poplar clones (W - 46, I - 69 NL - 80105 and NL - 80205 )have been measured by vertical stratifying method and trench digging method. Through the vertical biomass structure analysis,it is found out that the poplar clone,NL - 80205,is the greatest in stem fullness as well as in biomass among the four clones. Thus, choosing NL - 80205 poplar clone for cultivation will be able to either improve the profits of plain forestry management or enhance the protection effects of the forest metwork in the area.
出处
《江苏林业科技》
1995年第2期4-6,共3页
Journal of Jiangsu Forestry Science & Technology
关键词
杨树
生物量
空间结构
农田防护林
Protection forest network for farmland popla clones
biomass
