绿洲农田防护林单株新疆杨生物量及其根冠比变化分析  

Analysis on Biomass and Root Shoot Ratio of Xinjiang Poplar in Oasis Farmland Shelter Forest

作　　者：刘彩霞 Liu Caixia(Forest and Grass Ecological Restoration Center of Yuyang District,Yulin 719000,Shaanxi,China)

机构地区：[1]榆阳区林草生态修复中心,陕西榆林719000

出　　处：《农业技术与装备》2021年第9期120-121,共2页Agricultural Technology & Equipment

摘　　要：为探究绿洲农田防护林单株新疆杨生物量及其根冠比变化,文章以林带结构为研究对象,使用空间序列代替时间序列的方法对不同树龄单株新疆杨植株各径级根系生物量进行分析,通过使用固定样方的设置调查农田防护林植株侧根生物量,得出地上地下生物量密度差异及根冠比变化分配过程并建立模型,分析变化分配过程隐含的力学生物学机制。In order to explore the changes of biomass and root shoot ratio of single Xinjiang poplar in oasis farmland shelter forest,this paper takes the forest belt structure as the research object,uses the method of spatial series instead of time series to analyze the root biomass of single Xinjiang poplar at different tree ages,and investigates the lateral root biomass of farmland shelter forest by using fixed quadrat,The difference of aboveground and underground biomass density and the change and distribution process of root shoot ratio were obtained,and the model was established to analyze the implied mechanical and biological mechanism of the change and distribution process.

关 键 词：新疆杨 农田防护林 生物量 根冠比 

分 类 号：S792.11[农业科学—林木遗传育种]