Comprehensive nutrients evaluation of Xilin Gol natural grassland

This study was conducted for revealing the Xilin Gol grassland forage nutrients status and rationally developing and utilizing of grassland ecological resources. According to forage nutrients measurement data from 2005 to 2011 provided by Xilinhot National Climate Observatory, the nutrients of Xilin Gol grassland forage were quantitatively and comprehensively evaluated by principal component analysis method. The results showed that values of forage nutrients in Sonid Left Banner were the highest, while those were lower in Ulgai Management District. The nutritive values of desertification steppe were the highest, followed by typical steppe, and those were the lowest in meadow steppe.