【摘要】 为了研究三江源区天然草地土壤养分特征,采用灰色关联分析9种天然草地土壤类型养分。结果表明:沼泽土和草甸土质量优于其他土壤类型,试验区土壤均属于二等土壤。这说明试验区天然草地土壤养分质量较好,灰色关联分析适用于天然草地土壤养分分析。更多还原

【Abstract】 For studying soil nutrient features of grassland in Sanjiangyuan Nature Reserve,soil nutrient of 9 native grassland soil types were analyzed using grey correlation analysis.The results showed that the quality of bog soil were meadow soil were better than others,and all the grassland soil types were in the categories of grade two.It explained that the quality of grassland soil nutrient in test areas were good.Grey system theory was suitable for evaluating soil nutrient of native grassland.更多还原