EVALUATION ON PRODUCTION OF XINING NANSHAN GRASSLAND

Verity sets were invested by random sampling in Xining Nanshan.Production of grassland was measured in here.production of grassland was reducing tendency under the situation of grazing,vegetation trampling by human and animal and so on human intervention.Production of grassland was recovered development gradually under the situation of closing of mountains for planting trees and growing grass.If adding irrigation,production of grassland will increased quickly.