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Published online 31 May 2006
Published in J Environ Qual 35:1026-1031 (2006)
DOI: 10.2134/jeq2005.0354
© 2006 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Effect of Organic Amendment and Plant Roots on the Solubility and Mobilization of Lead in Soils at a Shooting Range

M. Levonmäkia,*, H. Hartikainena and T. Kairesalob

a Department of Applied Chemistry and Microbiology, University of Helsinki, P.O. Box 27 (Latokartanonkaari 11), FIN-00014 University of Helsinki, Finland
b Department of Ecological and Environmental Science, University of Helsinki, Niemenkatu 73, FIN-15140 Lahti, Finland


Figure 1
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  		Fig. 1. Microcosm experimental setup.

 

Figure 2
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  		Fig. 2. Lead dissolved from new and old pellets in sterilized distilled water and in soil water as a function of incubation time (mean ± SD). Note the scales.

 

Figure 3
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  		Fig. 3. Water-soluble Pb (mean ± SD) in the surface humic soil layer (A) in non-planted units and (B) in planted units with peat layers of 1, 2, and 3 cm, plus a control unit with no added peat. Leaching treatments were performed at Days 34 and 76. The sampling day is given in the bar and leaching tests are marked with arrows.

 

Figure 4
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  		Fig. 4. Dissolved organic carbon (DOC) in the surface humic soil layer of (A) the non-planted and (B) planted units (mean ± SD). The sampling day is given in the bar and leaching tests are marked with arrows.

 




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The SCI Journals Agronomy Journal Crop Science
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Copyright © 2006 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.