莫高窟顶防风固沙林带群落结构及防风固沙功能演变特征
赵元, 詹鸿涛, 贾荣亮, 邱飞, 张萍, 张国彬

Community characteristics and windbreak-sand fixation effectiveness of the shrub shelterbelts atop the Mogao Grottoes
Yuan Zhao, Hongtao Zhan, Rongliang Jia, Fei Qiu, Ping Zhang, Guobin Zhang
图5 不同建植年龄林带结构与防风固沙指标的主成分分析
Fig.5 Principal component analysis of forest belt structure and windbreak and sand fixation index in different planting years