Speciation and Translocation Characteristics of Soil Heavy Metals in the Water Level Fluctuating Zone of Pengxi River in Three Gorges Reservoir Area

Tu-jin WANG; Jin PAN; Xue-lian LIU

doi:10.15898/j.cnki.11-2131/td.2016.04.015

2016 Vol. 35, No. 4

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Article navigation > Rock and Mineral Analysis > 2016 > 35(4): 425-432

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Tu-jin WANG, Jin PAN, Xue-lian LIU. Speciation and Translocation Characteristics of Soil Heavy Metals in the Water Level Fluctuating Zone of Pengxi River in Three Gorges Reservoir Area[J]. Rock and Mineral Analysis, 2016, 35(4): 425-432. doi: 10.15898/j.cnki.11-2131/td.2016.04.015

Citation:

Tu-jin WANG, Jin PAN, Xue-lian LIU. Speciation and Translocation Characteristics of Soil Heavy Metals in the Water Level Fluctuating Zone of Pengxi River in Three Gorges Reservoir Area[J]. Rock and Mineral Analysis, 2016, 35(4): 425-432. doi: 10.15898/j.cnki.11-2131/td.2016.04.015

Speciation and Translocation Characteristics of Soil Heavy Metals in the Water Level Fluctuating Zone of Pengxi River in Three Gorges Reservoir Area

School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China

Received Date: 22 September 2015

Revised Date: 30 May 2016

Accepted Date: 15 July 2016

Abstract

Abstract

The water level fluctuating zone (WLFZ) is a transition belt between the water area and the terrestrial habitat that plays an indispensable role in the water environment. Pengxi River basin with the largest WLFZ area was chosen as the study area. The soils in the WLFZ and the coastal soil samples were collected to analyze the speciation characteristics of heavy metals. Besides, we have evaluated the pollution degree of such metal contaminants as well as the levels of the potential ecological risks with the methods of geo-accumulation index and the risk assessment code (RAC). The average contents of Pb, Cu, Cr, Cd, Zn and Ni in the soils of WLFZ were 68.70, 36.96, 55.10, 0.68, 108.26 and 31.68 mg/kg, respectively. The pollution degree is in the order of Cd > Pb > Zn > Cu > Ni > Cr, among which Cd and Pb pollution were prominent, generally higher than that in soils of mainstream of the Yangtze River and much higher than that in soils of Chongqing area. The RAC value of Cd was 20.62%, showed moderate pollution, and was mainly found in exchangeable and carbonates fraction. The RAC value of Pb, Cu, Cr, Zn and Ni were 5.45%-10.0%, showed low pollution, and were mainly found in residual fraction, accounting for 54.69%-83.05% in the total amount. Compared with the coastal soils, the content of heavy metals was increased in WLFZ soil, but the increased amount of each heavy metal was different. According to fractionation studies, residual fraction was the main part of the increased Cr and Ni. Nevertheless, the main part of the increased Cd, Pb and Zn were found in non-residual fractions. The results of our investigation indicated that under the effect of the terrestrial and aquatic pollution sources, the heavy metals contaminants in the Pengxi River basin were translocated from the coastal soil to the WLFZ, then deposited and enriched.
- water-level-fluctuating zone /
- soils /
- heavy metals /
- geo-accumulation index /
- ecological risk assessment

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References

[1]	Soodana R K,Pakadeb Y B,Nagpala A,et al.Analytical Techniques for Estimation of Heavy Metals in Soil Ecosystem:A Tabulated Review[J].Talanta,2014,125:405-410. doi: 10.1016/j.talanta.2014.02.033 CrossRef Google Scholar
[2]	Shao X X,Huang B,Zhao Y C,et al.Impacts of Human Activities and Sampling Strategies on Soil Heavy Metal Distribution in a Rapidly Developing Region of China[J].Ecotoxicology and Environmental Safety,2014,104:1-8. doi: 10.1016/j.ecoenv.2014.02.007 CrossRef Google Scholar
[3]	Yao Z,Li J H,Xie H H,et al.Review on Remediation Technologies of Soil Contaminated by Heavy Metals[J].Procedia Environmental Sciences,2012,16:722-729. doi: 10.1016/j.proenv.2012.10.099 CrossRef Google Scholar
[4]	Bao Y H,Gao P,He X B.The Water-Level Fluctuation Zone of Three Gorges Reservoir-A Unique Geomor-phological Unit[J]. Earth-Science Reviews,2015,150:14-24. doi: 10.1016/j.earscirev.2015.07.005 CrossRef Google Scholar
[5]	王图锦,胡学斌,吉芳英,等.三峡库区淹没区土壤重金属形态分布及其对水质影响[J].环境科学研究,2010,23(2):158-164. Google Scholar Wang T J,Hu X B,Ji F Y,et al.Chemical Fraction Composition Characteristics of Heavy Metals in Submerged Soil of Three Gorges Reservoir Area and Effect on Water Quality[J].Research of Environmental Sciences,2010,23(2):158-164. Google Scholar
[6]	曹琳,吉芳英.三峡库区消落带干湿交替表层沉积物磷分布特征[J].地球与环境,2013,41(2):126-131. Google Scholar Cao L,Ji F Y.Phosphorus Distribution Characteristics in Dry-Wet Alteration Sediment of Fluctuation Zone in Three Gorges Reservoir Area[J].Earth and Environ-ment, 2013,41(2):126-131. Google Scholar
[7]	朱宏伟,贺秀斌,胡云华,等.三峡库区消落带土壤磁性变化规律及成因探讨[J].现代地质,2014,28(4):859-866. Google Scholar Zhu H W,He X B,Hu Y H,et al.Discussion of Characteristics and Origin of Soil Magnetism Changes in the Three-Gorge Reservoir Riparian Zone[J].Geoscience,2014,28(4):859-866. Google Scholar
[8]	Chen Y,Li S Y,Zhang Y L,et al.Assessing Soil Heavy Metal Pollution in the Water-Level-Fluctuation Zone of the Three Gorges Reservoir,China[J].Journal of Hazardous Materials,2011,191:366-372. doi: 10.1016/j.jhazmat.2011.04.090 CrossRef Google Scholar
[9]	胥焘,王飞,郭强,等.三峡库区香溪河消落带及库岸土壤重金属迁移特征及来源分析[J].环境科学,2014,305(4):1502-1508. Google Scholar Xu T,Wang F,Guo Q,et al.Transfer Characteristic and Source Identification of Soil Heavy Metals from Water-Level-Fluctuating Zone along Xiangxi River,Three-Gorges Reservoir Area[J].Environmental Science,2014,305(4):1502-1508. Google Scholar
[10]	张成,陈宏,孙荣国,等.三峡水库消落带不同水位高程土壤汞风险评价[J].水土保持学报,2014,28(1):242-252. Google Scholar Zhang C,Chen H,Sun R G,et al.Risk Assessment of Mercury in Soil at Different Water-Level Altitudes in Drawdown Areas of Three Gorges Reservior[J].Journal of Soil and Water Conservation,2014,28(1):242-252. Google Scholar
[11]	余杨,王雨春,周怀东,等.三峡库区蓄水初期大宁河重金属食物链放大特征研究[J].环境科学,2013,34(10):3847-3853. Google Scholar Yu Y,Wang Y C,Zhou H D,et al.Biomagnification of Heavy Metals in the Aquatic Food Chain in Daning River of the Three Gorges Reservoir during Initial Impoundment[J].Environmental Science,2013,34(10):3847-3853. Google Scholar
[12]	张晨光,徐德星,张乃明,等.大宁河回水区消落带土壤磷释放动力学研究[J].土壤通报,2011,42(5):1159-1164. Google Scholar Zhang C G,Xu D X,Zhang N M,et al.Phosphorus Release Kinetics of the Soils from the Backwater-Fluctuating Zones of Daning River[J].Chinese Journal of Soil Science,2011,42(5):1159-1164. Google Scholar
[13]	许超,夏北成,吴海宁,等.酸性矿山废水污灌区水稻土重金属的形态分布及生物有效性[J].环境科学,2009,30(3):900-906. Google Scholar Xu C,Xia B C,Wu H N,et al.Speciation and Bioavailability of Heavy Metals in Paddy Soil Irrigated by Acid Mine Drainage[J].Environmental Science,2009,30(3):900-906. Google Scholar
[14]	Forstner U.Sediments and Environmental Geochemistry:Selected Aspects and Case Histories[M].Berlin Heidelberg:Springer-Verlag,1990:311-338. Google Scholar
[15]	唐将,钟远平,王力.三峡库区土壤重金属背景值研究[J].中国生态农业学报,2008,16( 4) :848-852. doi: 10.3724/SP.J.1011.2008.00848 CrossRef Google Scholar Tang J,Zhong Y P,Wang L.Background Value of Soil Heavy Metal in the Three Gorges Reservoir District[J].Chinese Journal of Eco-Agriculture,2008,16(4):848-852. doi: 10.3724/SP.J.1011.2008.00848 CrossRef Google Scholar
[16]	Saleem M,Iqbal J,Shah M H.Geochemical Speciation,Anthropogenic Contamination,Risk Assessment and Source Identification of Selected Metals in Freshwater Sediments-A Case Study from Mangla Lake,Pakistan[J].Environmental Nanotechnology,Monitoring & Management,2015,4:27-36. Google Scholar
[17]	Chen H Y,Teng Y G,Lu S J,et al.Contamination Features and Health Risk of Soil Heavy Metals in China[J].Science of the Total Environment,2015,512-513:143-153. doi: 10.1016/j.scitotenv.2015.01.025 CrossRef Google Scholar
[18]	Zhao S,Feng C H,Wang D X,et al.Salinity Increases the Mobility of Cd,Cu,Mn,and Pb in the Sediments of Yangtze Estuary:Relative Role of Sediments' Properties and Metal Speciation[J].Chemosphere,2013,91:977-984. doi: 10.1016/j.chemosphere.2013.02.001 CrossRef Google Scholar
[19]	Yang Z F,Wang Y,Shen Z Y,et a1.Distribution and Speciation of Heavy Metals in Sediments from the Mainstream,Tributaries,and Lakes of the Yangtze River Catchment of Wuhan,China[J].Journal of Hazardous Materials,2009,166:1186-1194. doi: 10.1016/j.jhazmat.2008.12.034 CrossRef Google Scholar
[20]	Wei X,Han L F,Gao B,et a1.Distribution,Bioavai-lability,and Potential Risk Assessment of the Metals in Tributary Sediments of Three Gorges Reservoir:The Impact of Water Impoundment[J].Ecological Indicators,2016,61:667-675. doi: 10.1016/j.ecolind.2015.10.018 CrossRef Google Scholar
[21]	钟晓兰,周生路,黄明丽,等.土壤重金属的形态分布特征及其影响因素[J].生态环境学报,2009,18 (4):1266-1273. Google Scholar Zhong X L,Zhou S L,Huang M L,et al.Chemical Form Distribution Characteristics of Soil Heavy Metals and Its Influencing Factors[J].Ecology and Environmental Sciences,2009,18(4):1266-1273. Google Scholar
[22]	陈媛,郭秀锐,程水源,等.基于SWAT模型的三峡库区流域污染物来源分析及重点控制区域识别[J].北京工业大学学报,2013,39(5):761-768. Google Scholar Chen Y,Guo X R,Cheng S Y,et al.Pollutant Source Analysis and Identification of Prior Control Areas in Three Gorges Reservoir Based on SWAT Model[J].Journal of Beijing University of Technology,2013,39(5):761-768. Google Scholar
[23]	高银超,鲍玉海,唐强,等.基于AnnAGNPS模型的三峡库区小江流域非点源污染负荷评价[J].长江流域资源与环境,2012,21(1):119-126. Google Scholar Gao Y C,Bao Y H,Tang Q,et al.Applying AnnAGNPS to Estimate Non-point Pollution Loading from Xiao Jiang Basin in the Three Gorges Reservoir Region[J].Resources and Environment in the Yangtze Basin,2012,21(1):119-126. Google Scholar