Distinguishing origins of elements in environmental geochemistry of Baiyangdian billabong of Hebei province,north China.;

The Baiyangdian wetland is the biggest freshwater lake in North China.

Baiyangdian wetland is located in the middle of the North China plain.

The application of CVM to evaluate non-use value of Baiyangdian wetland is the premise of continuable-development for Baiyangdian wetland.

Analysis on the Function of Ecologic Resource in Baiyangdian Wetlands for Utilization;

Baiyangdian Water Eco-system Crisis and Early Warning;

Study on Effect of Reed on Heavy Metal Pollution in Sediments of Baiyangdian;

Water environmental carrying capacity calculation and protection measures for Baiyangdian Lake;

Strategies for controlling water environmental pollution in the area of Baiyangdian Lake.;

Control of Non-Point Sources Pollution in Baiyangdian Lake by Eco-Engineering Techniques;

Exploration on Testing BOD_5 in Baiyang Lake;

Influence of water environment variation of Baiyang Lake on the growth of economy of Anxin County;

Baiyang Lake Water Resources:Their Bearing Index Analysis and Protection Countermeasures;