Denitrifying bacteria agent together with composite materials enhanced soil chemical properties and denitrifying functions in rare earth tailings: A field study
文献类型：期刊论文
| 作者 | Dai, Weijie2; Liu, Renlu3; Yang, Fen; He, Genhe3; Wei, Chaoyang |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2023-04-15 |
| 卷号 | 448页码:130913 |
| ISSN号 | 0304-3894 |
| 关键词 | Soil ammonium and nitrate Runoff loss Microbial community Functional analysis |
| DOI | 10.1016/j.jhazmat.2023.130913 |
| 文献子类 | Article |
| 英文摘要 | The exploitation of ionic rare earth ore using ammonium sulfate extractant in China caused serious soil degradation and nitrogen compounds pollution in surrounding water. It was critical to improve soil properties and eliminate the nitrogen compounds and prevent their diffusion from the rare earth tailings. Here, we addressed this issue by conducting a field experiment for six months through four different treatments including control (CK), denitrifying bacteria agent mainly consisted of Bacillus (DBA), composite materials (CM) and denitrifying bacteria agent together with composite materials (DBA+CM). Besides, the treatments except CK were also amended with basic soil conditioners. DBA+CM could significantly increase soil pH from 5.01 to 6.84 (p <= 0.05). Cation exchange capacity in DBA+CM increased from below detection limit to 2.79 cmol(+)/kg. DBA+CM possessed the highest removal rate of soil NH4+ (95.14 %) and soil NO3- (66.46 %). Compared to CK, DBA+CM significantly increased the absolute abundance of nirS genes and relative abundance of denitrification, nitrate respiration, and nitrite respiration the most (p <= 0.05). Denitrification, nitrate respiration and nirS genes were negatively correlated with soil NO3- (p <= 0.05). This study demonstrates denitrifying bacteria agent together with composite materials can be a promising approach to control the pollution of nitrogen compounds in ionic rare earth tailings. |
| WOS关键词 | BIOCHAR |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000967155300001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/190535]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Jinggangshan Univ, Sch Life Sci, Key Lab Agr Environm Pollut Prevent & Control Red, Jian 343009, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, Weijie,Liu, Renlu,Yang, Fen,et al. Denitrifying bacteria agent together with composite materials enhanced soil chemical properties and denitrifying functions in rare earth tailings: A field study[J]. JOURNAL OF HAZARDOUS MATERIALS,2023,448:130913. |
| APA | Dai, Weijie,Liu, Renlu,Yang, Fen,He, Genhe,&Wei, Chaoyang.(2023).Denitrifying bacteria agent together with composite materials enhanced soil chemical properties and denitrifying functions in rare earth tailings: A field study.JOURNAL OF HAZARDOUS MATERIALS,448,130913. |
| MLA | Dai, Weijie,et al."Denitrifying bacteria agent together with composite materials enhanced soil chemical properties and denitrifying functions in rare earth tailings: A field study".JOURNAL OF HAZARDOUS MATERIALS 448(2023):130913. |
入库方式： OAI收割
来源：地理科学与资源研究所
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