江苏省土壤锌元素地球化学特征及其利用前景

汪子意, 廖启林, 汪媛媛, 崔晓丹, 刘玮晶, 徐宏婷, 李文婷

Geochemical characteristics and utilization prospects of Zn in farmland soils, Jiangsu Province

WANG Zi-Yi, LIAO Qi-Lin, WANG Yuan-Yuan, CUI Xiao-Dan, LIU Wei-Jing, XU Hong-Ting, LI Wen-Ting

表3 江苏农田土壤Zn形态分析结果统计

Table 3 Statistics of Zn forms analytical results in the farmland soil in local areas of Jiangsu Province

分类 参数 w(Zn)/(mg·kg-1) 占比/% TOC/% CEC /(mmol·kg-1) pH F1 F2 F1+F2 Zn全量 F1 F2 F1+F2 酸性土壤 (n=328) Xmin 1.10 3.87 7.05 38.00 1.30 7.65 13.40 0.66 92.00 4.74 Xmax 36.60 65.90 86.00 228.00 31.47 35.41 55.29 3.33 404.00 6.99 $\overline{X}$ 4.54 15.12 19.66 84.32 5.36 17.43 22.79 2.11 186.02 5.89 CV 0.69 0.52 0.51 0.31 0.46 0.25 0.24 0.22 0.22 0.10 碱性土壤 (n=131) Xmin 0.80 6.42 7.96 50.00 0.77 11.44 12.88 0.19 64.00 7.00 Xmax 43.40 199.00 242.40 377.00 19.43 52.79 64.30 11.89 408.00 8.44 $\overline{X}$ 5.40 27.04 32.44 103.83 4.54 22.91 27.45 1.75 200.07 7.80 CV 1.11 0.95 0.96 0.51 0.61 0.35 0.37 0.66 0.42 0.06