Analysis of characteristics and productivity of rangeland resource in Tianzhu County

The types, distribution, characteristics and productivities of rangelands at Tianzhu County were analyzed and summarized. There are five types of rangelands at Tianzhu. They are mountain steppe, mountain meadow, alpine meadow, alpine shrubby tussock meadow and sparse forest meadow, respectively. The results from the study showed that productivities and nutritional contents of the rangelands were varieties in different areas， interannual and seasons. The species of forage plants of rangelands at Tianzhu County were very abundant, but their yield and quality were very poor. The study suggested that Tianzhu should utilize comprehensively measures of cultivating rangelands and take the method of combining grazing with drylot feeding to manage the system of pasture and livestock, so as to recover vegetation of rangelands and develop rangeland animal industry.