温室大棚寒地黑土质量综合评价及安全性分析

Quality Comprehensive Evaluation and Safety Analysis of Black Soilin the Cold Area Greenhouse

寒地黑土有“黑色黄金”之称,土质肥沃,研究其质量对农业土壤生态系统极为重要.选取温室大棚寒地黑土进行研究,对土壤隶属度函数、综合评价指数、综合污染指数、潜在生态危害指数等因素进行土壤质量评价.研究发现,土壤为粉砂质壤土,呈酸性,有机质含量符合全国第二次土壤普查养分分级标准三级土壤的标准.碱解氮、有效磷、速效钾符合全国第二次土壤普查养分分级标准一级土壤的标准.土壤重金属潜在生态危害等级较低.

The black soil in the cold region is called“black gold”and is fertile.The study of its quality is extremely important to the agricultural soil ecosystem.In this paper,the black soil in the cold area greenhouse was studied,and the soil quality was evaluated by soil membership function,composite evaluation index,comprehensive pollution index and potential ecological risk index and other factors.The study found that the soil is silty loam and is acidic;the content of organic matter conformities to the third level of the soil nutrient classification standard in the second national soil survey of China.Alkaline hydrolysis nitrogen,available phosphorus and rapidly available potassium conformity to the first level of the soil nutrient classification standard in the second national soil survey of China.The potential ecological hazard rating of soil heavy metals is low.