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Published online 27 June 2007
Published in J Environ Qual 36:1137-1144 (2007)
DOI: 10.2134/jeq2006.0304
© 2007 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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Changes in Microbial Biomass Parameters of a Heavy Metal-Contaminated Calcareous Soil during a Field Remediation Experiment

R. Clementea, C. de la Fuentea, R. Moralb and M. P. Bernala,*

a Dep. of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Campus Universitario de Espinardo, PO Box 164, 30100 Espinardo, Murcia, Spain
b Dep. of Agrochemistry and Environment, Miguel Hernandez Univ., EPSO, Ctra Beniel Km 3.2, Orihuela (Alicante), Spain. R. Clemente, current address, School of Biological and Earth Sciences, Liverpool John Moores Univ., Byrom Street, Liverpool L3 3AF, UK


Figure 1
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  		Fig. 1. Microbial biomass ratios in soils receiving different treatments at different sampling times. Bars with the same letter are not significantly different according to the Waller–Duncan test, at P < 0.05. Groups of bars without letters did not present statistically significant differences (P > 0.05). OH = olive husk; TOC = total organic carbon.

 

Figure 2
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  		Fig. 2. DTPA-extractable metal concentrations (mg kg–1) in soils at different sampling times. Bars with the same letter are not significantly different according to the Waller–Duncan test, at P < 0.05. Groups of bars without letters did not present statistically significant differences (P > 0.05).

 




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Copyright © 2007 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.