安徽省砀山县土壤元素背景值特征分析  

Analysis of background levels of soil elements in Dangshan County,Anhui Province

作　　者：娄长增 LOU Changzeng(No.325 Unit,Bureau of Geology and Mineral Exploration of Anhui Province,Huaibei,Anhui 235000,China)

机构地区：[1]安徽省地质矿产勘查局325地质队,安徽淮北235000

出　　处：《安徽地质》2025年第1期83-87,共5页Geology of Anhui

基　　金：安徽省公益性地质工作项目“砀山县酥梨产地土地质量地球化学调查与评价”(编号:2019-g-1)资助。

摘　　要：基于安徽省砀山县1∶50000土地质量地球化学调查与评价数据分析,统计了6444件表层土壤27项指标的地球化学参数,确定了砀山县土壤元素背景值,分析了其与皖北地区土壤元素背景值的差异性,结果发现砀山县土壤N指标的背景值明显低于皖北地区,土壤P、Na_(2)O、CaO等3项指标的背景值明显高于皖北地区,土壤Cl、MgO、SiO_(2)等23项指标的背景值与皖北地区相当。通过表层土壤27项指标因子分析,研究了各元素之间的组合特征及影响因素。本次研究成果为砀山县土壤资源可持续发展和利用、农业种植结构调整、高效微肥配方提供了科学依据。Based on analysis of 1∶50000 geochemical survey and evaluation data on land quality in Dangshan County,Anhui Province,this paper makes statistics of geochemical parameters of 27 indicators of 6444 surface soil samples,determines the background levels of soil elements in Dangshan,and analyzes the differences in the levels between Dangshan and northern Anhui,indicating that the background level of soil nitrogen in Dangshan is significantly lower than that in northern Anhui,and the levels of P,Na_(2)O and CaO are significantly higher than those in northern Anhui,the levels of 23 indicators such as Cl,MgO and SiO_(2) in Dangshan County are equivalent to those in northern Anhui.Finally,the characteristics and influencing factors of element associations are studied through the factor analysis of 27 indicators of the surface soils.The results of this study provide a scientific basis for the sustainable development and utilization of soil resources,the adjustment of agricultural planting structure and the formulation of high-efficiency micro element fertilizer in Dangshan.

关 键 词：土地质量 表层土壤 元素背景值 组合特征 砀山县 

分 类 号：P596[天文地球—地球化学]