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محیط زیست و منابع طبیعی::
خاک سبزیجات
In vegetable soils, the concentration of heavy metals was above the standard values except for Ni and As.
The main physicochemical parameters measured for all soil samples were as follows: (I) the pH value was varied: the soils were slightly acidic, with mean pH values of 6.25 and 6.51, and a range of 5.47-7.46 and 4.70-7.40 for paddy and vegetable soils, respectively.
(II) Organic matter contents of paddy soils were equal to those of vegetable soils, with an OM range of 2.74-8.66% and 2.07-8.68% for paddy and vegetable soils, respectively.
(III) The average CEC values in paddy and vegetable soils were 11.6 and 11.9 cmol/kg, with a range of 4.8-19.0 cmol/kg and 5.7-20.3 cmol/kg, respectively.
Heavy metal concentrations in tailing, paddy soil, and vegetable soil are presented in Table 4.
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