Centennial Pb-Zn mining pollution: Spatial distance impacts on agricultural soil microbiota stress response
文献类型：期刊论文
| 作者 | Xie, Chengjie1,2; Li, You1,2; Wulijia, Bayier1,2; Dong, Xinyu2,3; Wang, Liang1,2; Song, Yihua2,3; Liao, Xiaoyong1,2 |
| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2026 |
| 卷号 | 309页码:119550 |
| 关键词 | Heavy metals contamination Red soil agriculture Microbial community Resistance genes |
| ISSN号 | 0147-6513 |
| DOI | 10.1016/j.ecoenv.2025.119550 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Mining activities pose significant threats to agricultural ecosystems through heavy metals (HMs) contamination, particularly in acidic red soils. Since there was limited research on the response mechanisms of agricultural microorganisms at different distances within typical mining areas to HMs stress, This study investigated HMs pollution patterns, microbial community dynamics, and functional gene responses in farmland surrounding a century-old Pb-Zn mine in Shuikoushan, Hengyang City, China. Soil samples were collected from three zones: Short-Distance (SD, 0-10 km), Medium-Distance (MD, 10-15 km), and Long-Distance (LD, 15-25 km) from the mine. Results revealed a pronounced distance-dependent decline in composite HMs pollution, with Cd (R2=0.61) and As (R2=0.51) showing the strongest correlations to proximity. SD zone exhibited severe contamination, with Cd (8.25 +/- 5.74 mg kg-1) and As (58.58 +/- 49.63 mg kg-1) concentrations exceeding regulatory limits by 27.5 and 1.95 fold, respectively. Bacterial diversity demonstrated significant spatial stratification, with Shannon indices increasing from SD to LD zones (6.8 -> 7.2), while beta-diversity decreased, indicating reduced ecological heterogeneity at lower pollution levels. High HMs stress in SD zone favored anaerobic taxa like Thermomarinilinea and acid-tolerant phyla like Acidobacteriota, whereas aerobic taxa like Gaiella dominated less-polluted areas. Metagenomic analysis revealed upregulation of HMs resistance genes (czcABCD, cadCD, arsABCJR) in SD zone. Correlation network analysis highlighted intensified positive interactions among bacterial genus under HMs stress, suggesting cooperative survival strategies. These findings elucidate the dual pressure of HMs toxicity and soil acidification on microbial ecosystems, providing critical insights for ecological risk assessment and bioremediation strategies in mining-impacted agricultural lands. The study underscores the need for distance-based pollution control measures and highlights microbial genetic adaptation as a potential tool for rehabilitating heavy metal-contaminated red soils. |
| URL标识 | 查看原文 |
| WOS关键词 | HEAVY-METAL POLLUTION ; GEN. NOV. ; GROUNDWATER ; RESISTANCE ; REDUCTION ; SYSTEM |
| WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
| 语种 | 英语 |
| WOS记录号 | WOS:001640329800001 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219736]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Li, You; Liao, Xiaoyong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, 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.Fujian Agr & Forestry Univ, Coll Resources & Environm, Fujian Prov Key Lab Soil Environm Hlth & Regulat, Fuzhou 350002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Chengjie,Li, You,Wulijia, Bayier,et al. Centennial Pb-Zn mining pollution: Spatial distance impacts on agricultural soil microbiota stress response[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2026,309:119550. |
| APA | Xie, Chengjie.,Li, You.,Wulijia, Bayier.,Dong, Xinyu.,Wang, Liang.,...&Liao, Xiaoyong.(2026).Centennial Pb-Zn mining pollution: Spatial distance impacts on agricultural soil microbiota stress response.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,309,119550. |
| MLA | Xie, Chengjie,et al."Centennial Pb-Zn mining pollution: Spatial distance impacts on agricultural soil microbiota stress response".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 309(2026):119550. |
入库方式： OAI收割
来源：地理科学与资源研究所
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