So we used the most novel matching method-feature vector method to propose two fast algorithms: one is relativegradient-based algorithm, the other is cross trace-based algorithm.
Percentage, relative density and importance values of tree species and intolerant tree and shrub species increased while slope gradient from lower to upper.
灌木层中乔木树种和阳性乔灌木种类比例、相对密度和重要值均随坡位梯度从下部到上部逐渐增大。
3
Conclusion Byuse complete marrow direct culture method and density gradient method, after 3 ~ 5 passages, relative purified BMSCs can be obtained.