小陇山纸庙沟珍稀植物保护等级的定量分析

在野外调查的基础上,运用濒危系数、遗传多样性损失系数和物种价值系数对小陇山纸庙沟8种保护植物的保护等级进行了定量分析,属一级保护树种有：水青树、领春木、金钱槭、紫斑牡丹4种,二级保护树种有：庙台槭、水曲柳2种;三级保护树种有：红豆杉1种;四级保护树种为三尖杉1种。提出了加强珍稀植物保护的建议。

Quantitative Analysis of Conservation Classification for Rare Plants in Zhimiaogou of Xiaolongshan

Based on field investigation,the coefficients in endangerment,lost genetic diversity and value of species were used for quantitative analysis to determine the conservation grade of the rare plants distributed in Zhimiaogou of Xiaolongshan.The study results showed that 4 species fall into the first class for protection,2 species into the second,1 into the third and 1 to the fourth.Some effective advices for conservation were put forward.