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Figure 2 – Topographical position of soil profile in regard to water-table.
On the contrary, profiles PW1, PW3, PW5, PW7 and PW9 localized in positions
that are morphologically depressed, are involved by a periodical hydric saturation
(Typic Psammaquents, PW1 and PW5) that may sometimes affect the chemism,
owing to the high saline concentration (Sodic Psammaquents, PW3, PW7, PW9).
This last condition shall be taken into account in future analytical determination
regarding cation exchange capacity (CEC) and metal extraction.
Acknowledgment. Research co-financed of Ministry of University and Research, within
the frame of the project 20077A9XJA_PRIN 2007 Subproject 003 (L. Vittori Antisari) of
Bologna University, “Diffusion of PTE in the soil-plant system in environments characterized
by different degrees of anthropic pressure: evaluation of concentrations and bioavailability”
References
ALAOUI-SOSSÉ B., SEHMER L., BARNOLA P., DIZENGREMEL P. (1998) Effect of
NaCl salinity on growth and mineral partitioning in Quercus robur L., a rhythmically growing
species. Tree, 12:424-430.
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