调查评价的土壤元素累积趋势预测——以广西南宁市西乡塘区为例

王磊, 卓小雄, 吴天生, 凌胜华, 钟晓宇, 赵晓孟

Prediction of the soil element accumulation trends based on 1∶250 000 and 1∶50 000 geochemical surveys and assessments of land quality:A case study of Xixiangtang District, Nanning City, Guangxi zhuang Autonomous Region

WANG Lei, ZHUO Xiao-Xiong, WU Tian-Sheng, LING Sheng-Hua, ZHONG Xiao-Yu, ZHAO Xiao-Meng

表5 WB3和WA中元素含量及pH相关性、t检验统计

Table 5 Correlation and t-test of element contents and pH in WB3 and WA

元素 类别 样本 数量 相关性分析 t检验 相关系数 Sig. t Sig.(双侧) As(WB3)-As(WA) 189 0.91** 0 4.86 0 Cd(WB3)-Cd(WA) 189 0.91** 0 0.38 0.70 Cr(WB3)-Cr(WA) 189 0.92** 0 13.90 0 Hg(WB3)-Hg(WA) 189 0.90** 0 4.74 0 Pb(WB3)-Pb(WA) 189 0.96** 0 6.67 0 pH(WB3)-pH(WA) 189 0.66** 0 -2.81 0.01