Characteristics of Soil Arsenic Contamination and the Potential of Pioneer Plants for Arsenic Remediation in Gold Mine Tailings
Arsenic (As) contamination of gold mine tailings poses major threats to the natural environment and human health, necessitating adequate management measures. To investigate the soil As contamination level and the potential of pioneer plants for As remediation, the soil and plants of an abandoned gol...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-12-01
|
| Series: | Toxics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2305-6304/11/12/1025 |
| _version_ | 1797379251257737216 |
|---|---|
| author | Lei Han Yunmeng Zhai Rui Chen Yamin Fan Zhao Liu Yonghua Zhao Risheng Li Longfei Xia |
| author_facet | Lei Han Yunmeng Zhai Rui Chen Yamin Fan Zhao Liu Yonghua Zhao Risheng Li Longfei Xia |
| author_sort | Lei Han |
| collection | DOAJ |
| description | Arsenic (As) contamination of gold mine tailings poses major threats to the natural environment and human health, necessitating adequate management measures. To investigate the soil As contamination level and the potential of pioneer plants for As remediation, the soil and plants of an abandoned gold mine tailings in the Qinling Mountains were analyzed. The level of As contamination was assessed using the single-factor pollution index and potential ecological risk index, and its bioeffectiveness was analyzed. The enrichment capability of plants was investigated using the bioaccumulation factor and translocation factor. Redundancy analysis and partial least squares regression were employed to investigate factors affecting the distribution of As in soil and plants. The results show that As in soil mainly existed in the difficult-available state, with serious contamination and extremely high ecological risk. <i>Lythrum salicaria</i> L. and <i>Equisetum ramosissimum</i> Desf. are the preferred plants for remediation of As contamination through screening pioneer plants. Soil total nitrogen (STN) and available phosphorus (SAP) are the main factors influencing the characteristics of As distribution in the soil. Soil available potassium (SAK), water content (SWC), and SAP promote the accumulation of As by plants. This study provides plant materials and new ideas for mine ecological remediation. |
| first_indexed | 2024-03-08T20:19:28Z |
| format | Article |
| id | doaj.art-cb9335e3a4c84c32ac2b0180c3db3b21 |
| institution | Directory Open Access Journal |
| issn | 2305-6304 |
| language | English |
| last_indexed | 2024-03-08T20:19:28Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Toxics |
| spelling | doaj.art-cb9335e3a4c84c32ac2b0180c3db3b212023-12-22T14:46:11ZengMDPI AGToxics2305-63042023-12-011112102510.3390/toxics11121025Characteristics of Soil Arsenic Contamination and the Potential of Pioneer Plants for Arsenic Remediation in Gold Mine TailingsLei Han0Yunmeng Zhai1Rui Chen2Yamin Fan3Zhao Liu4Yonghua Zhao5Risheng Li6Longfei Xia7School of Land Engineering, Chang’an University, Xi’an 710054, ChinaSchool of Land Engineering, Chang’an University, Xi’an 710054, ChinaSchool of Earth Science and Resources, Chang’an University, Xi’an 710054, ChinaSchool of Land Engineering, Chang’an University, Xi’an 710054, ChinaSchool of Land Engineering, Chang’an University, Xi’an 710054, ChinaSchool of Land Engineering, Chang’an University, Xi’an 710054, ChinaShaanxi Provincial Land Engineering Construction Group, Xi’an 710075, ChinaShaanxi Provincial Land Engineering Construction Group, Xi’an 710075, ChinaArsenic (As) contamination of gold mine tailings poses major threats to the natural environment and human health, necessitating adequate management measures. To investigate the soil As contamination level and the potential of pioneer plants for As remediation, the soil and plants of an abandoned gold mine tailings in the Qinling Mountains were analyzed. The level of As contamination was assessed using the single-factor pollution index and potential ecological risk index, and its bioeffectiveness was analyzed. The enrichment capability of plants was investigated using the bioaccumulation factor and translocation factor. Redundancy analysis and partial least squares regression were employed to investigate factors affecting the distribution of As in soil and plants. The results show that As in soil mainly existed in the difficult-available state, with serious contamination and extremely high ecological risk. <i>Lythrum salicaria</i> L. and <i>Equisetum ramosissimum</i> Desf. are the preferred plants for remediation of As contamination through screening pioneer plants. Soil total nitrogen (STN) and available phosphorus (SAP) are the main factors influencing the characteristics of As distribution in the soil. Soil available potassium (SAK), water content (SWC), and SAP promote the accumulation of As by plants. This study provides plant materials and new ideas for mine ecological remediation.https://www.mdpi.com/2305-6304/11/12/1025soil Asecological restorationenrichment characteristicsbioavailabilitypotential ecological risksQinling Mountains |
| spellingShingle | Lei Han Yunmeng Zhai Rui Chen Yamin Fan Zhao Liu Yonghua Zhao Risheng Li Longfei Xia Characteristics of Soil Arsenic Contamination and the Potential of Pioneer Plants for Arsenic Remediation in Gold Mine Tailings Toxics soil As ecological restoration enrichment characteristics bioavailability potential ecological risks Qinling Mountains |
| title | Characteristics of Soil Arsenic Contamination and the Potential of Pioneer Plants for Arsenic Remediation in Gold Mine Tailings |
| title_full | Characteristics of Soil Arsenic Contamination and the Potential of Pioneer Plants for Arsenic Remediation in Gold Mine Tailings |
| title_fullStr | Characteristics of Soil Arsenic Contamination and the Potential of Pioneer Plants for Arsenic Remediation in Gold Mine Tailings |
| title_full_unstemmed | Characteristics of Soil Arsenic Contamination and the Potential of Pioneer Plants for Arsenic Remediation in Gold Mine Tailings |
| title_short | Characteristics of Soil Arsenic Contamination and the Potential of Pioneer Plants for Arsenic Remediation in Gold Mine Tailings |
| title_sort | characteristics of soil arsenic contamination and the potential of pioneer plants for arsenic remediation in gold mine tailings |
| topic | soil As ecological restoration enrichment characteristics bioavailability potential ecological risks Qinling Mountains |
| url | https://www.mdpi.com/2305-6304/11/12/1025 |
| work_keys_str_mv | AT leihan characteristicsofsoilarseniccontaminationandthepotentialofpioneerplantsforarsenicremediationingoldminetailings AT yunmengzhai characteristicsofsoilarseniccontaminationandthepotentialofpioneerplantsforarsenicremediationingoldminetailings AT ruichen characteristicsofsoilarseniccontaminationandthepotentialofpioneerplantsforarsenicremediationingoldminetailings AT yaminfan characteristicsofsoilarseniccontaminationandthepotentialofpioneerplantsforarsenicremediationingoldminetailings AT zhaoliu characteristicsofsoilarseniccontaminationandthepotentialofpioneerplantsforarsenicremediationingoldminetailings AT yonghuazhao characteristicsofsoilarseniccontaminationandthepotentialofpioneerplantsforarsenicremediationingoldminetailings AT rishengli characteristicsofsoilarseniccontaminationandthepotentialofpioneerplantsforarsenicremediationingoldminetailings AT longfeixia characteristicsofsoilarseniccontaminationandthepotentialofpioneerplantsforarsenicremediationingoldminetailings |