Improvement of Xinjiang Iron Tailings Using a Novel Water⁃ Retaining Material Combined with <italic style="font-style: italic">Aspergillus niger</italic>

Li Qi; Hu Chengbo; Tang Jiahao; Yang Yixia; Duan Yiran; Shen Yifan; Gou Linping; Wang Shuangcheng; Li Qiang; Pei Xiangjun

doi:10.3799/dqkx.2026.152

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Improvement of Xinjiang Iron Tailings Using a Novel Water⁃ Retaining Material Combined with Aspergillus niger

更新时间：2026-10-15

- Improvement of Xinjiang Iron Tailings Using a Novel Water⁃ Retaining Material Combined with Aspergillus niger
- Earth Science Vol. 51, Issue 9, Pages: 3445-3456(2026)
- 作者机构：
  
  1.成都理工大学生态环境学院，四川成都 610059
  2.成都理工大学地质灾害防治与地质环境保护全国重点实验室，四川成都 610059
  3.天府永兴实验室，四川成都 610213
  4.新疆维吾尔自治区地质局水文环境地质调查中心，新疆乌鲁木齐 830000
- 作者简介：
- 基金信息：
- DOI：10.3799/dqkx.2026.152
  CLC： P642.5
- Received：28 January 2026，
  
  Published：30 September 2026
- 稿件说明：
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李琪，胡成博，唐佳豪，杨镒霞，段一然，沈逸凡，苟林平，王双成，李强，裴向军，2026.新型保水材料联合黑曲霉对新疆铁尾矿渣的改良效果.地球科学，51（9）：3445-3456.

Li Qi，Hu Chengbo，Tang Jiahao，Yang Yixia，Duan Yiran，Shen Yifan，Gou Linping，Wang Shuangcheng，Li Qiang，Pei Xiangjun，2026.Improvement of Xinjiang Iron Tailings Using a Novel Water⁃Retaining Material Combined with Aspergillus niger.Earth Science，51（9）：3445-3456.
李琪，胡成博，唐佳豪，杨镒霞，段一然，沈逸凡，苟林平，王双成，李强，裴向军，2026.新型保水材料联合黑曲霉对新疆铁尾矿渣的改良效果.地球科学，51（9）：3445-3456. DOI： 10.3799/dqkx.2026.152.

Li Qi，Hu Chengbo，Tang Jiahao，Yang Yixia，Duan Yiran，Shen Yifan，Gou Linping，Wang Shuangcheng，Li Qiang，Pei Xiangjun，2026.Improvement of Xinjiang Iron Tailings Using a Novel Water⁃Retaining Material Combined with Aspergillus niger.Earth Science，51（9）：3445-3456. DOI： 10.3799/dqkx.2026.152.

摘要

为探究黑曲霉孢子粉与新型保水材料SJP对铁尾矿渣的协同改良效应，以阿吾拉勒铁矿带铁尾矿为研究对象，设置室内盆栽实验，测定植物生长指标、改良后土壤理化性质、土壤酶活性及土壤微生物群落特征，并采用综合评价方法筛选最优改良配比.结果表明，改良处理显著促进紫花苜蓿生长，最优处理组较相应对照组提高166.67%；尾矿含水率、养分含量和酶活性分别提高203.61%、87.92%~1 935.67%和186.74%~1 532.24%.改良处理还显著改变了根际微生物群落结构，功能预测结果显示糖酵解支路和氨基酸生物合成等基础代谢途径显著富集.综合评价确定最优改良方案为：铁尾矿渣与营养土质量比1∶0、SJP浓度1%、黑曲霉孢子粉添加量2.0 g.本研究可为新疆铁尾矿生态修复提供技术支撑.

Abstract

This study investigated the synergistic effects of

Aspergillus niger

spore powder and a novel water-retaining material (SJP) on iron tailings from the Awulale iron ore belt. An indoor pot experiment was conducted to determine plant growth

tailings physicochemical properties

soil enzyme activities

and rhizosphere microbial community characteristics

and a comprehensive evaluation was performed to identify the optimal amendment combination. The treatments significantly promoted alfalfa growth

with plant height increasing by 166.67% under the optimal treatment relative to the corresponding control. Tailings moisture content

nutrient concentrations

and enzyme activities increased by 203.61%

87.92%-1 935.67%

and 186.74%- 1 532.24%

respectively. The treatments also altered the rhizosphere microbial community structure

while functional prediction indicated significant enrichment of fundamental metabolic pathways

including glycolysis and amino acid biosynthesis. The optimal combination comprised an iron tailings-to-nutrient soil mass ratio of 1∶0

an SJP concentration of 1%

and 2.0 g of A. niger spore powder. These findings provide a technical reference for the ecological restoration of iron tailings in Xinjiang.

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references

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Improvement of Xinjiang Iron Tailings Using a Novel Water⁃ Retaining Material Combined with Aspergillus niger

DOI：10.3799/dqkx.2026.152

摘要

Abstract

关键词

Keywords

references