Study On The Comparison Of Soil Factor And The Growth Development Of Rhizomatous Grasses On The Differ Steppe Area In Mongolia Altiplano

Inner Mongolia of China and Mongolia both hold the main body of Mongolia Altiplano. The configuration, the species of plant and the mode of utilization of grassland in the two countries are quite similar. So, it′s very important to study on the comparison about the growth and development of plant and the vegetation of grassland in whole of Mongolia Altiplano. In this paper, we have studied on the correlative comparison between physics and nourishment of soil and the growth and development of rhizomatous grasses in parts of grassland in Mongolia Altiplano, in order to finding out the impact on the growth and development of pasture by soil.It′s showed that vegetation is better in Mongolia than in Inner Mongolia by the study of physical character of soil about water content, unit weight and whole tolerance of soil.It′s showed that organic matter,total nitrogen,total phosphorus,alkali-hydrolyzed N in average of soil are higher in Mongolia model grassland than in Inner Mongolia model grassland by the study of nourishment of soil. It′s showed that C/N,total potassium,Available-K in average of soil are lower in Mongolia model grassland than in Inner Mongolia meadow grassland and are higher than in Inner Mongolia model grassland. It′s showed that pH in average of soil in different parts in Mongolia Altiplano is higher in Inner Mongolia model grassland, lower in Mongolia model grassland and middle in Inner Mongolia meadow grassland.In studying area, the status on the floor of plant is better in Mongolia grassland than in Inner Mongolia in whole. However, it′s showed that Coverage in total, Coverage of rhizomatous grasses, height of Reproductive Shoot,height of Vegetative Shoot,Count of Tassel,Rate of Tassel and Relative-Volume are lower in Mongolia grassland than in Inner Mongolia model grassland. The reasons of this have to do more study.After correlative analysing about the edaphic factor and the growth and development of rhizomatous grasses besides edaphic factor of different edaphic character and the growth and development of rhizomatous grasses, we found that the correlation in edaphic factor and the growth and development of rhizomatous grasses is different in different grassland and different edaphic character.