Environmental Problems and Protection Countermeasures for the Wetlands in Songnen Plain,Oortheast China;

Research on Effects of Land Use Change on Regional Ecosystem Service Values of Songnen Plain,China;

Study on Element Compositions of Alkaline Dust Aerosols in Western Songnen Plain,China;

Review of Wetland Science in the Songnen Plain in Recent 10 Years;

The Alkalization Parameters and Their Influential Factors of Saline-Sodic Soil in the Songnen Plain;

heteroptera which are two more alkali-resisting and annotinousspecies of herb in Chenopodieceae growing in the alkalized meadow of the Songnen Plain inNortheast China were examined by random sampling on a periodical basis from their twofixed mono-dominant communities to investigate the changes in the storages of their viableseeds in soils and the dynamics of their populations .

Physiological response to salt-alkali stress in experimental populations in two ecotypes of Leymus chinensis in the Songnen Plains of China;

The west of Songnen plains was a area under the transitional climate from semi-arid to arid, so the area represent the major mode of land use in North-East of China.

On the basis of the results of multiobjective geochemical exploration in the region of Song-Nen low plain,the paper studies composition of the elements contributed to the soil salinization in the Song-Nen plain.

The effects of land use change on the ecosystem service value in the hinterland of Songnen plain;

Dynamics of the ecosystem service values of the ecotone in west Songnen Plain;

Application of Fractal Theory to Research on Eco-Environmental Stress in West Songnen Plain.;

Sensitivity of the reference crop evapotranspiration in growing season in the West Songnen Plain;