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Background and aims <p>Soil desertification induced by mineral exploitation has emerged as a critical factor exacerbating environmental deterioration and land degradation. Cellulose derivatives, as highly promising soil remediation materials, have garnered significant attention in the field of desertified soil amelioration. However, their ameliorative effects in uranium mine desertified soils remain unclear.</p> Methods <p>To address this, the remediation effects of sodium carboxymethyl cellulose (CMC), applied at varying concentrations on uranium mine desertified soils and the mechanisms underlying its enhancement of <i>Boehmeria nivea (L.) Gaudich</i> phytoremediation.</p> Results <p>The results indicated that CMC improved soil structure through adsorption and binding, increasing the composition of macroaggregates in the soil, thereby enhancing soil stability and uranium immobilization capacity. Additionally, CMC addition increased soil nutrient content and facilitated the succession of rhizosphere microbial communities, which in turn improved <i>Boehmeria nivea (L.) Gaudich</i> biomass, stress resistance, and uranium accumulation capacity. Furthermore, CMC amendment enhanced the proportion of bioavailable uranium in the soil by regulating the interactions among soil, rhizosphere microbiota, and Boehmeria nivea (L.) Gaudich. The increase in bioavailable uranium facilitated the absorption and accumulation of uranium by <i>Boehmeria nivea (L.) Gaudich</i>, thereby improving soil remediation efficiency.</p>

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Impact and mechanism of cellulose derivative amendment on the remediation of desertified soil from uranium mines using Boehmeria nivea (L.) Gaudich

  • 期刊论文

  • 发表日期：

    2026年3月24日

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  • Chengxia Zhang,
  • Yongdong Wang,
  • Mengting Li,
  • Dexin Ding,
  • Guangyue Li,
  • Zhonran Dai,
  • Hui Zhang,
  • Jianhong Ma,
  • Jing Sun,
  • Yang Ding,
  • Nan Hu,
  • Feng Li,
  • Qingguo Ren

摘要

Background and aims

Soil desertification induced by mineral exploitation has emerged as a critical factor exacerbating environmental deterioration and land degradation. Cellulose derivatives, as highly promising soil remediation materials, have garnered significant attention in the field of desertified soil amelioration. However, their ameliorative effects in uranium mine desertified soils remain unclear.

Methods

To address this, the remediation effects of sodium carboxymethyl cellulose (CMC), applied at varying concentrations on uranium mine desertified soils and the mechanisms underlying its enhancement of Boehmeria nivea (L.) Gaudich phytoremediation.

Results

The results indicated that CMC improved soil structure through adsorption and binding, increasing the composition of macroaggregates in the soil, thereby enhancing soil stability and uranium immobilization capacity. Additionally, CMC addition increased soil nutrient content and facilitated the succession of rhizosphere microbial communities, which in turn improved Boehmeria nivea (L.) Gaudich biomass, stress resistance, and uranium accumulation capacity. Furthermore, CMC amendment enhanced the proportion of bioavailable uranium in the soil by regulating the interactions among soil, rhizosphere microbiota, and Boehmeria nivea (L.) Gaudich. The increase in bioavailable uranium facilitated the absorption and accumulation of uranium by Boehmeria nivea (L.) Gaudich, thereby improving soil remediation efficiency.