The phase and potential of grass plantation in Tongliao city has been discussed by means of analysis on ETM images, statistic and investigation data.

The results showed that for TN,TP,CODMn,NH4+-N and the transparency the sequence of treating effect is basically: strip aquatic mats> AquaMats> artificial aquatic mat>plant carpet>the control;in it the removal rates of TN,TP,CODMn by strip aquatic mats were 97.

The quality of eutrophic waters was improved by the algae-bacterium biofilm, which covered over the artificial aquatic mat made from a kind of mend macromolecule material.

Seasonal dynamics of biomass and nutrition of artificial grassland established in "black soil type" degraded grassland in Gemutan;

Study on the changes of soil nutrients,microbial biomass P and neutral phosphatase activity of artificial grassland sown in different years in the headwaters of the Yangtze and Yellow Rivers;

Characteristics of artificial grassland plant communities with different establishment duration and their relationships with soil properties in the source region of Three Rivers in China;

Optimum study of sown pasture sheep systems Ⅴ Study of the effect of rotational grazing on pregnant Cormo ewe intake;

Improving Sown Pasture-Sheep Production SystemsⅢ Analysis of Efficiency for Winter and Spring Lambing Systems within Existed and Improved Systems;

Effects of Grazing Intensity on Forage Productivity and Sheep Performance at Pasture in South China

Forage introduction experiment for sown pasture establishment in alpine areas of Yellow River s upper reaches;

Optimization of shorthorn beef cattle grazing system on sown pasture;

The growth and reproductive trends of Leymus chinensis on sown pastures;