Non-structural carbohydrate levels of three co-occurring understory plants and their responses to forest thinning by gap creation in a dense pine plantation

作     者：Zhe Wang Weikai Bao Xiaoli Yan 

作者机构：Key Laboratory of Mountain Ecological Restoration and Bioresource UtilizationChengdu Institute of BiologyChinese Academy of Sciences Key Laboratory for Bio-Resource and Eco-environment of Ministry of EducationCollege of Life ScienceSichuan University University of Chinese Academy of Sciences 

出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)

年 卷 期：2015年第26卷第2期

页      面：391-396页

核心收录：

学科分类：0907[农学-林学] 08[工学] 0829[工学-林业工程] 09[农学] 

基　　金：supported by the Strategic Priority Research Program of the CAS(No.XDA05070306) the National Science&Technology Pillar Program in 12th 5-year Plan of China(No.2011BAC09B0402) 

主　　题：Forest-floor plant Gap thinning Light radiation Moss Non-structural carbohydrates 

摘      要：We investigated non-structural carbohydrates（NSC） levels and components（starch,glucose,fructose and sucrose） in the leaves of three typical co-occurring forestfloor plants,moss Eurhynchium savatieri（ES）,fern Parathelypteris nipponica（PN） and forb Aruncus sylvester（AS） in a 30-year-old Chinese pine（Pinus tabulaeformis）plantation forest on the eastern Tibetan *** also explored their responses to three gap creation treatments（control and two gap creations of 80 and 110 m2） based on NSC *** had the highest leaf NSC level of the three plants,with AS second and ES *** was the predominant component of NSC and the contents of glucose were higher than those of fructose or sucrose for all three *** NSC level of ES in intermediate gaps was significantly higher than at control *** also had higher NSC levels in both small and intermediate gaps than in control *** the differences between treatments were not obvious for *** results suggest that ES and PN benefit from gap formation while the two species have different NSC response sensitivities to gap size,but the leaf NSC level of AS is less sensitive to the disturbance.