The interactive effects of petroleum-hydrocarbon spillage and plant rhizosphere on concentrations and distribution of heavy metals in sediments in the Yellow River Delta, China.

In order to understand how petroleum-hydrocarbon spillage and plant rhizosphere interact to affect concentrations and distribution of heavy metals, nine metals were analyzed from four different types of sediments (i.e. petroleum-hydrocarbon spilled rhizosphere, pristine rhizosphere, petroleum-hydrocarbon spilled unvegetated, and pristine unvegetated) in the Yellow River Delta, China. Our results showed that petroleum-hydrocarbon spillage together with rhizosphere effects were responsible for the significantly higher levels of metals in these four types of sediments. Compared to unvegetated sediments, rhizosphere sediments were well grouped into petroleum-hydrocarbon spilled and pristine sites on the basis of the concentrations of heavy metals by the correspondence analysis (CA). Furthermore, analysis of the transfer factors indicated that the capacity of rhizosphere sediments to stabilize heavy metals increased with increasing petroleum-hydrocarbon spillage, which might be due to the changes of sediment profiles by plant rhizosphere. Our results suggested that interactive effects of petroleum-hydrocarbon spillage and plant rhizosphere played an important role in determining concentrations and spatial distribution pattern of heavy metals.

[1]  M. Guerinot,et al.  MOLECULAR BIOLOGY OF CATION TRANSPORT IN PLANTS. , 1998, Annual review of plant physiology and plant molecular biology.

[2]  Peter M. Groffman,et al.  Soil and Sediment Biodiversity: Cross-system comparisons and large-scale effects , 1999 .

[3]  S. M. Ullrich,et al.  Total and exchangeable concentrations of heavy metals in soils near Bytom, an area of Pb/Zn mining and smelting in Upper Silesia, Poland , 1999 .

[4]  Gerald Kirchner,et al.  Environmental processes affecting plant root uptake of radioactive trace elements and variability of transfer factor data: a review. , 2002, Journal of environmental radioactivity.

[5]  B. J. Alloway,et al.  The role of dissolved organic carbon in the mobility of Cd, Ni and Zn in sewage sludge-amended soils. , 2002, Environmental pollution.

[6]  Jiang Wang,et al.  The distribution and phytoavailability of heavy metal fractions in rhizosphere soils of Paulowniu fortunei (seem) Hems near a Pb/Zn smelter in Guangdong, PR China. , 2009 .

[7]  P. Audet,et al.  Allocation plasticity and plant-metal partitioning: meta-analytical perspectives in phytoremediation. , 2008, Environmental pollution.

[8]  J. Morel,et al.  Metal binding with root exudates of low molecular weight , 1988 .

[9]  Antonio Cobelo-García,et al.  Trace elements in the Prestige fuel-oil spill: Levels and influence on Laxe Ria sediments (NW Iberian Peninsula) , 2006 .

[10]  R. Prego,et al.  Influence of the heavy fuel spill from the Prestige tanker wreckage in the overlying seawater column levels of copper, nickel and vanadium (NE Atlantic ocean) , 2008 .

[11]  K. Kalbitz,et al.  Mobilization of heavy metals and arsenic in polluted wetland soils and its dependence on dissolved organic matter. , 1998, The Science of the total environment.

[12]  A. Hodge,et al.  Plant and mycorrhizal regulation of rhizodeposition. , 2004, The New phytologist.

[13]  Ming K. Wang,et al.  Chemical and physical properties of rhizosphere and bulk soils of three tea plants cultivated in Ultisols , 2006 .

[14]  Y. Rui,et al.  [Effects of soil use along Yellow River basin on the pollution of soil by heavy metals]. , 2008, Guang pu xue yu guang pu fen xi = Guang pu.

[15]  David L. Jones.  Organic acids in the rhizosphere – a critical review , 1998, Plant and Soil.

[16]  E. Delhaize,et al.  Malate Efflux From Root Apices and Tolerance to Aluminium Are Highly Correlated in Wheat , 1995 .

[17]  Ming-kuang Wang,et al.  Effects of cadmium amendments on low‐molecular‐weight organic acid exudates in rhizosphere soils of tobacco and sunflower , 2006, Environmental toxicology.

[18]  T. H. Christensen,et al.  Changes in trace metal species and other components of the rhizosphere during growth of radish , 1995 .

[19]  L. Osuji,et al.  Trace Heavy Metals Associated with Crude Oil: A Case Study of Ebocha‐8 Oil‐Spill‐Polluted Site in Niger Delta, Nigeria , 2004, Chemistry & biodiversity.

[20]  G. Shimmield,et al.  Estuaries as Repositories of Historical Contamination and their Impact on Shelf Seas , 2002 .

[21]  Emily E. Peacock,et al.  Long-term consequences of residual petroleum on salt marsh grass , 2008 .

[22]  G. Shaffer,et al.  Phytoremediation of small-scale oil spills in fresh marsh environments: a mesocosm simulation. , 2001, Marine environmental research.

[23]  U. Ibok,et al.  Seasonal variation and partition of trace metals (Fe, Zn, Cu, Mn, Cr, Cd and Pb) in surface sediments: relationship with physico-chemical variables of water from the Calabar River, South Eastern Nigeria , 1998 .

[24]  Jianping Chen,et al.  A Comparison of Spectrophotometric and Gas Chromatographic Measurements of Heavy Petroleum Products in Soil Samples , 2002 .

[25]  H. V. Joshi,et al.  Evaluation of the emission characteristics of trace metals from coal and fuel oil fired power plants and their fate during combustion. , 2005, Journal of hazardous materials.

[26]  J. Pichtel,et al.  Spatial and temporal distribution of metals in soils in warsaw, poland , 1997 .

[27]  John L. Freeman,et al.  Environmental cleanup using plants: biotechnological advances and ecological considerations , 2006 .

[28]  L. Lacerda,et al.  The biogeochemistry and trace metals distribution of mangrove rhizospheres , 1993 .

[29]  Wu Long-hua.  A Survey of Petroleum Contamination in Several Chinese Oilfield Soils , 2007 .

[30]  M. Subrahmanyam,et al.  Accumulation of copper, nickel, lead and zinc by snail, Lunella coronatus and pearl oyster, Pinctada radiata from the Kuwait coast before and after the Gulf War oil spill. , 1997, The Science of the total environment.

[31]  R. Pacovsky.  Micronutrient uptake and distribution in mycorrhizal or phosphorus-fertilized soybeans , 1986, Plant and Soil.