Influences of artificial disturbing degrees on soil conditions and liquorice roots system Study on Numerical Taxonomy of the Asexual Propagation of Scirpus planiculmis in Songliao Ecological Area An Analysis of Age Structure and the Strategy for Asexual Propagation of Aneurolepidium chinense Population Gene shiva-1 Inheritance and Expression of Transgenic Paulownia Regeneration mode of Xanthoceras sorbifolia population and its contribution to population regeneration.