Comprehensive evaluation of nutritive value of dominant gramineous grass in Shaertao Mountain, Zhaosu County in Xinjiang

The natural grassland vegetations of Shaertao Mountain were abundant which reserved rich forage resources, especially the gramineous which occupied the important position and provided the diet for grazing animals. In the present study, the growth characteristics and palatability characteristics of nine gramineous grasses which were dominant in natural grassland vegetations of Shaertao Mountain were measured and the nutritional values were evaluated by the grey correlation analysis method. The result showed that nine dominant gramineous grass were divided into three water ecological types (xerophyte, xero-mesophyte and mesophyte), four tillering types (dense cluster type, rhizomatous, rhizomes-laxifruticose, laxifruticose), three palatability levels(specially favorite to eat, favorite to eat, wanted to eat). Nine dominant gramineous grass nutritive value of the order was Dactylis glomerataElymus nutansRoegneria sinkiangensisElymus cylindricusPoa angustifoliaBrachypodium pinnatumPhleum pratenseStipa capillataAchnatherum splendens.