山东冠县土壤元素地球化学特征与质量评价

Geochemical Characteristics and Quality Evaluation of Soil Elements in Guanxian County in Shandong Province

以冠县土壤为研究对象,通过系统地球化学调查,获取了土壤29项指标含量数据;在此基础上计算了冠县土壤背景值等地球化学参数,评价了土壤养分和环境地球化学等级、土壤质量地球化学综合等级。结果表明,与山东省土壤背景值相比,冠县土壤中OrgC、I、Mo、CaO、MgO、P、S等元素指标偏高,而Al_(2)O_(3)、K_(2)O、Pb等元素指标偏低;土壤质量综合评价为良好—优质,优质等级约占全区面积的52.32%,良好等级约占全区面积的45.91%。

Taking the soil in Guanxian county as the research object,through systematic geochemical investigation,the content data of 29 soil indicators have been obtained.On this basis,the soil background value in Guanxian county has been calculated.The soil nutrient and environmental geochemical grades and comprehensive geochemical grades of soil quality have been evaluated.It is showed that the elements and indexes of OrgC,I,Mo,CaO,MgO,P,S in the soil in Guanxian county are high,while the elements and indexes of Al_(2)O_(3),K_(2)O and Pb are low comparing with the soil background value in Shandong province.Comprehensive evaluation of soil quality is good to high quality.The high quality grade accounts for about 52.32%of the total area,and the good grade accounts for about 45.91%of the total area.