Spread and partitioning of arsenic in soils from a mine waste site in Madrid province (Spain)

2014 ◽  
Vol 500-501 ◽  
pp. 23-33 ◽  
Author(s):  
M.A. Gomez-Gonzalez ◽  
S. Serrano ◽  
F. Laborda ◽  
F. Garrido
Keyword(s):  
1977 ◽  
Vol 55 (8) ◽  
pp. 1038-1042 ◽  
Author(s):  
Gary D. Hogan ◽  
Gerald M. Courtin ◽  
Wilfried E. Rauser

A number of soils were examined from areas of a mine waste contaminated with heavy metals. Soils from areas vegetated with Agrostis gigantea Roth, which did not possess copper tolerance were compared with adjacent barren areas. Soils from sites which supported non-tolerant grasses had higher pHs and were lower in water-extractable metals than soils from non-vegetated areas. The soils did not differ with respect to any other factor examined. The non-vegetated soils were shown to be more toxic to the growth of Avena sativa than vegetated soils. The establishment and survival of grasses not having the selective advantage of copper tolerance were found to be restricted to the less toxic regions of the study site.


Author(s):  
Lucia Rodriguez-Freire ◽  
Cherie L. DeVore ◽  
Eliane El Hayek ◽  
Debora Berti ◽  
Abdul-Mehdi S. Ali ◽  
...  

Uranium uptake and accumulation in the roots of Tamarix plants, leading to extracellular U precipitation, and the intracellular entrapment of U–P nanocrystals.


1977 ◽  
Vol 55 (8) ◽  
pp. 1043-1050 ◽  
Author(s):  
Gary D. Hogan ◽  
Gerard M. Courtin ◽  
Wilfried E. Rauser

A mine waste site from Sudbury, Ontario, contaminated with heavy metals is described. The dominant vegetative cover was formed by two grasses: Agrostis gigantea Roth, and Agrostis scabra Willd. Testing of 10 clones of A. gigantea from the roast bed and an adjoining area for copper tolerance showed that two clones collected from the roast bed were tolerant to increased copper levels. Copper tolerance was found in clones growing on soils with high copper contents and low pHs. The combination of high copper content and low pH brought about a high level of extractable copper within the soil. Soils with equally high copper levels but higher pHs and therefore low extractable-copper levels did not support copper-tolerant clones.


Sign in / Sign up

Export Citation Format

Share Document