大地电导率仪EM38-MK2数据分析与应用拓展研究  

Study on the Data Analysis and Application of Handheld Geonics EM38-MK2

作　　者：孙运朋[1,2] 张振华[1] 陈小兵[2,3] 吴从稳[2,4] 姚荣江[5] 颜坤[2,3] 张立华[2,3] 

机构地区：[1]鲁东大学地理与规划学院,山东烟台264025 [2]中国科学院烟台海岸带研究所,山东烟台264003 [3]中国科学院海岸带环境过程重点实验室,山东烟台264003 [4]烟台大学生命科学学院,山东烟台264005 [5]中国科学院南京土壤研究所,南京210008

出　　处：《灌溉排水学报》2013年第4期135-137,144,共4页Journal of Irrigation and Drainage

基　　金：公益性行业(农业)科研专项经费项目(200903001);海洋公益性行业科研专项(201105020);黄河三角洲生态环境重点实验室项目(2008KFJJ03);国家自然科学基金项目(41271236);国家高技术研究发展计划(863计划)(2011AA1005A4)

摘　　要：采用EM38-MK2测量了0.75m位水平和垂直模式下的表观电导率,并分析其差异性。结果表明,垂直模式下平均△E比水平模式下大18mS/m,且二者线性相关。建立回归模型时,应结合具体数据选择多种模型拟合对比,以确定最优模型,建议0.75m层位数据取(EH0.75+EV0.75)/2。Apparent conductivities of 0.75 m in horizontal and vertical were measured using EM38-MK2, and the differences between horizontal and vertical data were analyzed. The results showed that vertical AE was higher 18 mS/m than horizontal AE, and there was a sigfinicant linear correlation. It was recom- mended that the average of the data in 0.75 m should be used to build regession model and the optimal model should be choosed by the comparison of different models.

关 键 词：EM38-MK2 0 75m表观电导率 差异性 回归模型 

分 类 号：S153.2[农业科学—土壤学]