Analysis on Tourism Resource Selection in Songyuan City

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;

Promoting forest economic development to increasepeasant s income in Songyuan City, Jilin,China;

Assessment of groundwater antipollution capability in Songyuan City;

Preliminary Study on Diversity of Anatidae in Spring in Songyuan City;

This paper discussed the dying method based on L, a, b value for the orange tip base paper of cigarette.

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 .

Monitoring methods of remote sensing on black soil loss in Songliao Plain;

The geological mechanism of eco-environment deterioration in the middle-west region, Songliao Plain;

Research on spectral characteristics of aster image in black soil area of Songliao Plain and their automatic classification;