哈尔滨市郊菜地土壤重金属及土壤理化性质

A Study on Soil Heavy Metals and its Physical and Chemical Property of the Vegetable Plots in Harbin Suburb

为了解哈尔滨市郊菜地土壤环境质量,促进蔬菜生产向高产优质方向发展,合理采样并测定了菜地土壤重金属含量及理化性质指标。利用SPSS 15进行了重金属元素间以及重金属元素与土壤理化性质间的Pearson相关分析。分析结果表明,研究区菜地土壤重金属含量未超标,土壤环境质量属于清洁水平;重金属元素间相关性小,土壤重金属空间差异大,来源复杂;菜地土壤理化性质pH、有机质、总磷、速效磷和土壤颗粒组成都适合土壤植物的生长,并且土壤的pH和有机质影响着菜地土壤重金属的分布。哈尔滨市郊菜地在当前的利用方式下,土壤环境质量状况好,适用于种植无公害蔬菜。

In order to explore the environmental quality of the soil of vegetable plots in Harbin suburb,this research sampled scientifically and mensurated the content of heavy metals and its physical and chemical property index.Using SPSS 15 to make Pearson Correlation Analysis among heavy metals and between heavy metals and soil physical and chemical property,this research reached the results as followed.The content of heavy metal was within the standard and the soil environmental quality belongs to the level of safety and cleanliness.The correlation among heavy metals was weak;its space distribution was diversified;and its sources were complicated.The physical and chemical property of the soil of the vegetable plots,including pH,organic matter,total phosphorus,rapidly available phosphorus and soil particle composition were suitable for plants growing.Furthermore,the pH and organic matter have an influence on the distribution of heavy metals.In conclusion,because of the good environmental quality,it is suitable to plant green vegetables in Harbin suburb.