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

本文从黄土高原草场的现状与合理利用和建设的角度,选用模糊聚类法,在PC—1500微机上对黄土高原地区的主要草场类型进行了效益分析和综合分类评价。结果认为:荒漠草原类、草甸草原类、低温地草甸草场类等,由于过度放牧和不合理的刈割利用,使草场生产潜力已充分挖掘,因而,此类草场在建设中,首先应以耕翻补播优良牧草为主;干草原草场类,山地革甸草场类、灌丛草甸草场类等,虽已大量放牧和刈割利用,但草场生产潜力尚未充分挖掘。因此,草场建设应以封育恢复天然植被为主。

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.