摘要
在对蒙古高原北部草原生态环境进行调查的基础上,对草原土壤的理化性质和营养成分进行系统测试,选择有机质、全氮、全磷、全钾、水解性氮、速效磷、速效钾和pH值作为评价指标,应用灰色关联度法对草原土壤质量进行综合评价.总体而言,蒙古高原北部草地属于三等(中)和四等(差)土壤,一等(优)和二等(良)及五等(劣)土壤相对较少或没有.
On the basis of investigation of grassland environments in the north part of Mongolian Plateau, physical and chemical characters and nutrient components of grassland soil are systematically tested. Taking organic matter, total N, total P, total K, available N, available P, available K and pH value as evaluation indexes,the quality of grassland soil in this region is evaluated by using grey system theory. The results show that grassland soil in the north part of Mongolian Plateau almost are mostly in the categories of grade three or grade four,and grassland of grade one,two and five are less in the region.
出处
《内蒙古师范大学学报（自然科学汉文版）》
CAS
2008年第6期775-779,共5页
Journal of Inner Mongolia Normal University(Natural Science Edition)
基金
内蒙古自然科学基金资助项目(200607010603)
关键词
蒙古高原北部
草原
土壤质量
灰色关联度分析
综合评价
the north part of Mongolian Plateau
the grassland
soil quality
grey correlation analysis
comprehensive evaluation
