By experiment of atomic spectrum and planting trees with flowerpots,a study is made to reveal the resistibility of Nerium indicum and clerodendrum cyrtophyllum to Pb contamination in different conditions,for example,in wild area and in flowerpots.

Sub-volcanic epithermal mineralization of Jiulongwan silverpolymetal deposit,eastern Daqingshan,Inner Mongolia,China:evidence from fluid inclusions.;

Carbon accumulation and distribution in Pinus massoniana and Cunninghamia lanceolata mixed forest ecosystem in Daqingshan, Guangxi of China;

Planting Technology of Forestry in Different Type Region --Construction Mode of Daqingshan Eco-economic Gully;

Extraction and seperation of indirubin in Folium Isatidis;

Effect of drying method and extracting temperature on contents of bioactive constituents in Radix Isatidis and Folium Isatidis;

Content Determination of organic Acid in Folium Isatidis from Differernt Habitats;

Study on Modifying Populus ussuriensis Wood by Glyoxal Cross-Linking Reagents;

The Effects of Arbuscular Mycorrhizal Fungi on the Radicular System of Populus ussuriensis Seedlings;

Research on initial density of Populus ussuriensis plantations;

Study on the Extraction of Indirubin from Isatis indigotica Fort;

and Isatis indigotica Fort.

Objective: To identify five constituents in the aqueous extract of Isatis indigotica Fort.