宁夏南部山区葫芦河流域土壤地球化学特征及影响因素分析
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李永春, 苏日力格, 周文辉, 邰苏日嘎拉, 陈国栋, 王永亮, 高琪, 张祥, 张栋
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Geochemical characteristics and influencing factors of soil in Hulu River Basin in the southern mountainous region of Ningxia
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LI Yong-Chun, SU Ri-Li-Ge, ZHOU Wen-Hui, TAI Su-Ri-Ga-La, CHEN Guo-Dong, WANG Yong-Liang, GAO Qi, ZHANG Xiang, ZHANG Dong
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表3 不同单元土壤元素富集系数统计
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Table 3 Enrichment coefficient of different units
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元素
(指标) | 全区
背景值X | 不同成土母质富集系数K3 | 不同土地利用类型富集系数K4 | 冲积母质
n=1020 | 红土母质
n=571 | 黄土母质
n=4801 | 水浇地
n=1099 | 旱地
n=4334 | 林地
n=676 | 草地
n=132 | 其他
n=151 | | SiO2 | 54.93 | 1.01 | 1.01 | 0.99 | 1.02 | 1.00 | 0.98 | 0.99 | 0.99 | | Al2O3 | 11.60 | 1.00 | 1.05 | 1.00 | 1.00 | 1.00 | 1.00 | 0.99 | 1.00 | | Fe2O3 | 4.60 | 0.99 | 1.04 | 1.00 | 0.99 | 1.00 | 0.99 | 1.00 | 1.00 | | MgO | 2.54 | 1.03 | 1.04 | 1.00 | 1.02 | 1.00 | 1.00 | 1.00 | 1.03 | | CaO | 9.35 | 0.91 | 0.89 | 1.02 | 0.88 | 1.01 | 1.04 | 1.04 | 1.00 | | Na2O | 1.68 | 1.01 | 0.95 | 1.00 | 1.00 | 1.01 | 0.96 | 0.99 | 0.98 | | K2O | 2.56 | 1.03 | 1.01 | 0.99 | 1.03 | 1.00 | 0.99 | 0.97 | 1.00 | | Corg. | 0.68 | 1.12 | 1.40 | 0.97 | 1.16 | 0.98 | 1.22 | 0.98 | 1.05 | | pH | 8.33 | 1.00 | 1.00 | 1.00 | 1.01 | 1.00 | 1.01 | 1.01 | 1.01 | | As | 13.00 | 1.01 | 1.05 | 1.00 | 1.02 | 1.00 | 1.02 | 0.99 | 1.03 | | B | 54.55 | 1.06 | 1.10 | 0.99 | 1.08 | 0.99 | 1.03 | 0.98 | 1.03 | | Cd | 0.15 | 1.07 | 1.09 | 0.98 | 1.08 | 0.99 | 1.01 | 0.95 | 1.01 | | Cl | 59.61 | 1.46 | 1.02 | 1.02 | 1.41 | 1.04 | 0.92 | 1.00 | 1.29 | | Co | 12.33 | 0.99 | 1.04 | 1.00 | 1.00 | 1.00 | 1.01 | 1.00 | 1.01 | | Cr | 62.44 | 1.00 | 1.05 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.01 | | Cu | 24.31 | 1.03 | 1.07 | 1.00 | 1.05 | 1.00 | 1.01 | 0.99 | 1.02 | | F | 616.72 | 1.03 | 1.07 | 0.99 | 1.04 | 0.99 | 0.99 | 0.97 | 1.02 | | Ge | 1.22 | 1.01 | 1.03 | 0.99 | 1.01 | 1.00 | 0.99 | 0.99 | 0.99 | | Hg | 21.72 | 1.34 | 1.11 | 1.06 | 1.38 | 1.08 | 0.95 | 1.00 | 1.01 | | I | 2.21 | 1.28 | 1.37 | 1.01 | 1.33 | 0.99 | 1.30 | 1.00 | 1.25 | | Mn | 643.48 | 1.02 | 1.04 | 0.99 | 1.02 | 1.00 | 0.98 | 0.99 | 1.01 | | Mo | 0.86 | 1.45 | 1.29 | 0.99 | 1.45 | 1.01 | 1.02 | 0.97 | 1.21 | | N | 875.37 | 1.09 | 1.25 | 0.98 | 1.11 | 0.98 | 1.16 | 0.98 | 1.02 | | Ni | 32.45 | 1.00 | 1.03 | 1.00 | 0.99 | 1.00 | 0.99 | 1.00 | 1.00 | | P | 807.07 | 1.15 | 1.01 | 0.98 | 1.17 | 0.99 | 0.87 | 0.92 | 0.96 | | Pb | 20.09 | 1.03 | 1.10 | 1.00 | 1.04 | 1.00 | 1.02 | 0.99 | 1.02 | | S | 218.04 | 1.26 | 1.64 | 0.98 | 1.24 | 1.00 | 1.40 | 0.97 | 1.13 | | Se | 0.14 | 1.27 | 1.09 | 0.96 | 1.29 | 0.95 | 1.06 | 0.94 | 1.14 | | V | 78.09 | 0.99 | 1.03 | 1.00 | 0.99 | 1.00 | 0.99 | 0.99 | 1.01 | | Zn | 70.80 | 1.03 | 1.05 | 0.99 | 1.04 | 1.00 | 0.99 | 0.98 | 1.01 |
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