【摘要】 用样方调查法和访问法,对湘西永顺县杨风山地区不同海拔高度和不同地形缬草资源的分布状况进行调查,结果表明:杨风山地区的缬草主要以宽叶缬草和细叶缬草为主;随海拔高度的增加,缬草分布的密度差异不明显,但细叶缬草密度增加;在不同地形条件下,缬草分布的密度差异不明显,但于荫凉、潮湿山谷生长的缬草比在山脊生长的缬草更高大。更多还原

【Abstract】 With the methods of investigation and visiting,we investigated the resource distribution of Valeriana officinalis L.in Yangfengshan of Yongshun county,Xiangxi Autonomous Prefecture.The results showed that most of Valeriana officinalis in Yangfengshan are broad leaf or thin leaf type.With the altitude increasing,there is no significant difference in the density of Valeriana officinalis L.,but with a increase for the density of thin leaf Valeriana officinalis L..Under the condition of different landscapes,there is no significance difference in the density,but the plants growing in valley grow higher than that on the ridge.更多还原