Michael W H E, Mathias E, Andreas S. Evaluation of the effect of small organic acids on phytoextraction of Cu and Pb from soil with tobacco Nicotiana tabacum [J]. Chemosphere, 2006, 63: 996- 1004.
Thomash C. Cd soil sorption at low concentrations : I. effect of time, cadmium load, pH, and calcium[J]. Water, Air & Soil pollution, 1984, 21: 105- 1141.
[10]
Combs S M. The effects of extraction techniques on Cd/Cu/Ni and Zn extraction from dredged materials and correlations with plant metal uptake[J]. Comm. Soil Sci & Plant Anal, 1982, 13 (2) : 87- 96.
[11]
Fei Q, Xiao Q S, Bei W. Effects of low-molecular weight organic acids and residence time on desorption of Cu, Cd and Pb from soils[J]. Chemosphere, 2004, 57: 253- 263.
[12]
Fischer F, Bipp H P. Removal of heavy metals from soil components and soils by natural chelating agents Ⅱ. Soil extraction by sugar acids [J]. Water, Air Soil Pollution, 2002, 138: 271- 288.
Jones D L. Organic acids in the rhizosphere- A critical review[J]. Plant Soil, 1998. 205: 25- 44.
[16]
Gao Y Z, He J Z, Ling W T, et al. Effects of organic acids on copper and cadmium desorption from contaminated soils[J]. Environ Inte, 2003, 29: 613-618.