Possible overgrowth of bamboo caused by nitrogen saturation

• 作 者: YukiAihara;KeisukeKoba;MuneokiYoh;
• 机 构: Tokyo University of Agriculture and Technology,Fuchu,Tokyo,183-8509,Japan
• 出 处: International Symposium on Forest Soils(2013年森林土壤国际研讨会)
• 发表日期: 2013年期

　　Nitrogen saturation has been suggested to affect plant growth and the allometry of root-shoot biomass allocation.We studied morphological changes in bamboo showing lodging(falling down),which was observed in a forest site that has been reported to be nitrogen-saturated(Yoh et al,2001).No significant morphological difference was found for straight-bamboo between the N-saturated and two control sites.Lodging-bamboo in the N-saturated site,however,had significantly larger mass of branches-and-leaves and abnormal growth in the middle of culm.Root density was also found to be lower in an N-saturated site.It appears that nitrogen saturation may be causing remarkable morphological changes in bamboo that come to lodging.