基于灰色关联分析的宁夏中部旱区压砂地土壤质量评价
打开文本图片集
摘要：在对宁夏中部旱区压砂地土壤养分调查的基础上，选择西瓜地、枸杞地、沙枣地和撂荒地作为研究对象，以有机质、全氮、全磷、全钾、碱解氮、速效磷、速效钾作为评价指标，运用灰色关联分析模型对该区域土壤质量进行综合评价。结果表明，该区域西瓜地土壤质量最优，枸杞地和撂荒地次之，沙枣地土壤质量较差。
关键词：灰色关联分析;土壤质量;压砂地;宁夏中部旱区
中图分类号：S158 文献标志码：A 文章编号：1001-1463（2021）11-0065-04
doi：10.3969/j.issn.1001-1463.2021.11.014
Evaluation of Soil Fertility in Gravel-sand Mulched in Arid Area of Central Ningxia Base on Grey Correlation Analysis
JIA Tao
（Wuzhong Kexin Environmental Testing Co.， Ltd.， Wuzhong Ningxia 751100， China）
Abstract：Based on the investigation and analysis of soil nutrients on the gravel-sand mulched field in arid area of central Ningxia， watermelon land， wolfberry land， sand jujube land and abandoned land were chosen as research objects， organic matter， alkali-hydrolyzed nitrogen， available phosphorus and available potassium were used as evaluation indexes， the grey relational analysis model was used to evaluate the soil fertility in this area. The results showed that soil fertility of watermelon field was the best in this area， followed by wolfberry field and abandoned land， and the soil quality of oleaster field was poor.
Key words：Grey correlation analysis;Soil fertility;Gravel-sand mulched;Arid area of central Ningxia
土壤是人類赖以生存的最基本的自然资源之一，土壤质量是影响土地生产力的关键因子，也是影响农民增收致富的重要因素[1 - 2 ]。