重庆典型农业区土壤硒地球化学特征及影响因素

余飞, 张风雷, 张永文, 王锐, 王佳彬

Geochemical characteristics and influential factors of soil selenium in typical agricultural area, Chongqing

YU Fei, ZHANG Feng-Lei, ZHANG Yong-Wen, WANG Rui, WANG Jia-Bin

表3 研究区不同地层出露区土壤Se含量

Table 3 Se contents in different strata of soil in the study area

地层 最小值/10-6 平均值/10-6 最大值/10-6 标准差/10-6 变异系数/% 样本数 J3p 0.064 0.243 0.593 0.06 24.62 653 J3sn 0.075 0.251 0.783 0.07 27.41 602 J2s 0.071 0.235 4.154 0.13 53.6 1609 J1z-J2x 0.056 0.326 2.708 0.19 57.97 547 T3xj 0.062 0.391 1.773 0.22 55.83 400 T2l 0.124 0.411 2.565 0.23 55.12 301 T1j 0.108 0.734 10.802 0.66 89.29 562 T1f 0.098 0.902 3.439 0.48 53.03 211 P 0.123 1.026 5.15 0.594 57.903 498 O 0.084 0.479 3.227 0.27 55.53 1604 S 0.056 0.573 5.166 0.37 64.27 1509 ∈ 0.066 0.475 3.388 0.26 54.52 450