人类活动对江汉平原地区土地质量的影响——以洪湖市为例

郑雄伟, 陶梦珺, 张芷宜, 查亚, 王亚风, 张响荣

Impacts of human activities on the land quality of Jianghan Plain: A case study of Honghu City

ZHENG Xiong-Wei, TAO Meng-Jun, ZHANG Zhi-Yi, CHA Ya, WANG Ya-Feng, ZHANG Xiang-Rong

表3 研究区大气降尘地球化学指标特征值

Table 3 Characteristic value of geochemical index of atmospheric dust fall of the study area

元素 样品数 平均值/10-6 标准差/10-6 变异系数 最小值/10-6 最大值/10-6 中位值/10-6 Se 84 3.886 6.101 1.570 0.03116 25.810 0.3381 As 84 9.662 15.289 1.582 0.07188 64.010 2.3249 Sb 24 0.812 0.454 0.559 0.10964 2.099 0.6907 Hg 84 0.097 0.134 1.383 0.0026 0.476 0.0137 Cr 84 50.190 82.275 1.639 3.1040 473.040 12.4900 Ni 84 24.522 41.085 1.675 0.6489 224.548 4.6900 Cu 84 60.275 97.190 1.612 1.922 426.960 9.6400 Zn 84 413.956 704.202 1.701 4.78 4219.160 74.3200 Cd 84 3.430 5.915 1.724 0.0426 34.000 0.4837 Pb 84 111.835 171.899 1.537 3.092 986.120 27.6600 Fe 24 6383.300 5595.869 0.877 446.147 20345.500 4134.1500 Al 24 1270.960 1758.884 1.384 0.0000043 6621.540 0.0003 Ca 24 1058.620 677.224 0.640 328.762 3502.030 937.6860 Mg 24 603.060 495.509 0.822 73.9278 2049.600 489.3350 K 24 1057.820 888.147 0.840 94.6428 3890.320 872.5400 Mn 24 28.880 29.608 1.025 0.01 102.700 22.6500 P 24 192.784 116.188 0.603 19.95 525.900 179.0500 Co 24 0.901 0.742 0.823 0.1309 3.501 0.7321 Mo 24 0.240 0.152 0.634 0.0309 0.660 0.2042