干旱区生态环境知识资源中心(Arid): Evaluation of heavy metal speciation distribution in soil and the accumulation characteristics in wild plants: A study on naturally aged abandoned farmland adjacent to tailings

Arid

DOI	10.1016/j.scitotenv.2024.170594
	Evaluation of heavy metal speciation distribution in soil and the accumulation characteristics in wild plants: A study on naturally aged abandoned farmland adjacent to tailings
	Dong, Suhang; Li, Longrui; Chen, Weijie; Chen, Zhaoming; Wang, Yufan; Wang, Shengli
通讯作者	Wang, SL
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2024
卷号	917
英文摘要	Heavy metal composite pollution is widespread in the surrounding environment of tailings ponds in arid and semi -arid regions, leading to the abandonment of substantial agricultural land. This study investigates the speciation distribution and plant accumulation characteristics of heavy metals in abandoned farmland with different durations of natural aging. The aim is to comprehend the local heavy metal behavior pattern in the soilplant system and offer insights for environmental remediation. Our findings reveal that Cd stands out as the primary heavy metal pollutant in this area. The mobility ranking of heavy metals is Cd > Pb > Zn > Cu, with Cd and Pb mobility decreasing along the basin. Notably, active Pb exhibits a higher affinity for soil binding compared to other metals. The predominant plant species in the region are primarily small shrubs, herbaceous plants, and semi-shrubs that demonstrate tolerance to drought and salt. Most plant samples showed elevated levels of Cd, Pb, and Zn, surpassing the maximum tolerance levels for dietary minerals in livestock. This elevated metal content poses potential threats to the health of local livestock and wildlife, yet it is also considered a potential for phytoremediation. Selected dominant plant species from the current study include Kalidium foliatum & gracile which shows potential as a Cd accumulator and indicator. Neotrinia splendens and Reaumuria songarica demonstrate potential as Cd excluders, with the latter exhibiting higher tolerance to Cd (62.9 mg/kg). Additionally, our observations indicate that different plant parts exhibit distinct responses to heavy metals, and Zn synergistically influences the aerial part accumulation of Cd. This study holds significant importance in understanding the complex behavior patterns of multi -metal pollutants in the natural environment. The identification of native plants with remediation potential is valuable for phytoremediation of environment pollution in mining area.
英文关键词	Heavy metal speciation Tailings ponds Abandoned farmland Dominant plants
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001178959500001
WOS关键词	SEQUENTIAL EXTRACTION ; SEWAGE-SLUDGE ; COPPER MINE ; CU ; ZINC ; LEAD ; MOBILITY ; TOXICITY ; CADMIUM ; ZN
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405459
推荐引用方式 GB/T 7714	Dong, Suhang,Li, Longrui,Chen, Weijie,et al. Evaluation of heavy metal speciation distribution in soil and the accumulation characteristics in wild plants: A study on naturally aged abandoned farmland adjacent to tailings[J],2024,917.
APA	Dong, Suhang,Li, Longrui,Chen, Weijie,Chen, Zhaoming,Wang, Yufan,&Wang, Shengli.(2024).Evaluation of heavy metal speciation distribution in soil and the accumulation characteristics in wild plants: A study on naturally aged abandoned farmland adjacent to tailings.SCIENCE OF THE TOTAL ENVIRONMENT,917.
MLA	Dong, Suhang,et al."Evaluation of heavy metal speciation distribution in soil and the accumulation characteristics in wild plants: A study on naturally aged abandoned farmland adjacent to tailings".SCIENCE OF THE TOTAL ENVIRONMENT 917(2024).