黄土高原草场的效益分析与分类评价

CLASSIFICATION EVALUATION AND BENIFICIAL ANALYSIS OF LOESS PLATEAU GRASSLAND

Based on the existing state, rational utilization and couseructionof loes plateau grassland, clarsificatron evaluation and benificial ana-lysis were carried out of the main types of grassland. On PC-1500microcom puter by applying Fuzry-cluster methed. The results show that, dae to over-grazing and irrational utiliza-tion. The potentiality of desert grassland, Meadow grassland in theregion has been completely exploited therefore, for the types of grass-land, peseeding seems to the best way for promote productivity. Onthe other hand, for steppe grassland, mountainous Meadow and her- bage Meadow grassland, The potentiality has been coupleted exploited,due to light-grazing and cutting. So, the main step shows be taken ofenclasre and natureal recovery.