ABSTRACT The purpose of this study is to investigate the effect of cellulosic wastes and nanoscale zero-valent iron (nZVI) on the soil properties and the nutrient uptake by Quercus castaneifolia C.A.Mey seedlings. The seedlings were planted in pots (unpolluted soil) and cadmium (Cd) was added to the pots in three concentrations (10, 20, 30 mg.kg−1). Cellulosic wastes were mixed with the soil (at the same time as the planting) in four levels (W: 0, 10, 20, 30 g.100g−1 soil). The reduction method was used to prepare nZVI, then the nanoparticles were injected into the polluted pots in four levels (N: 0, 1, 2, and 3 mg.kg−1). The lowest concentration of Cd in leaves, stems and roots and for all the contamination levels was observed in N3. All the cellulosic wastes and N3 significantly increased the soil pH at all the levels of contamination. An increasing trend of the soil carbon (C) content was observed by adding the cellulosic wastes. The highest pH and C content were observed in W3. The lowest bioavailable Cd contents for all the contamination levels was observed in N3. According to the results, nZVI and cellulosic wastes could help the plants establishing in heavy metal-polluted lands.

中文翻译：

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施用土壤改良剂后橡树幼苗土壤化学和元素吸收的变化

摘要 本研究的目的是研究纤维素废物和纳米零价铁 (nZVI) 对橡树幼苗土壤特性和养分吸收的影响。将幼苗种植在盆中（未受污染的土壤），并将镉 (Cd) 以三种浓度（10、20、30 mg.kg-1）添加到盆中。纤维素废物与土壤（与种植同时）以四个水平（W：0、10、20、30 g.100g-1 土壤）混合。采用还原法制备 nZVI，然后将纳米颗粒以四个水平（N：0、1、2 和 3 mg.kg-1）注入污染盆中。在 N3 中观察到叶子、茎和根以及所有污染水平中 Cd 的最低浓度。在所有污染水平下，所有纤维素废物和 N3 都显着增加了土壤 pH 值。通过添加纤维素废物观察到土壤碳（C）含量增加的趋势。在 W3 中观察到最高的 pH 和 C 含量。在 N3 中观察到所有污染水平的最低生物可利用 Cd 含量。根据结果​​，nZVI 和纤维素废物可以帮助植物在重金属污染的土地上建立。