Conclusion Compound I is a new phenolic glycoside named as davidianoside.

Ⅰ.CHEMIMECHANICAL PULPS FROM Populus davidiana;

Litter decomposition processes in the pure birch (Betula platyphlla) forest and the birch and poplar (Populus davidiana) mixed forest;

Fungi s dynamic development during the period of Populus davidiana stump decomposition in the broadleaved-Korean pine forests;

Propagation techniques on root turion sprout browse of Populus davidiana Dode;

Selection of Superior Provenance of Populus davidiana Dode Pulpwood;

Report on Renew the Destroyed Wood Grafting Aspen Applying the Stump;

Studies on Drought-resistance of Transgenic Tobacco Expressing Betaine Synthetase Gene and Agrobacterium-tumefacience Mediated Gene Transformation of Aspen (Populus Davidiana Dove);

Identification of root rot pathogenetic bacteria of moutain poplar;