Aerial deposition of Ni from a refinery in Port Colborne, Ontario, Canada has resulted in the enrichment of 29 km of land with Ni concentrations exceeding the Canadian Ministry of the Environment’s remedial action level of 200 mg kg . Several studies on these soils have shown that making the soils calcareous was effective at reducing chemically extractable Ni, as well as alleviating Ni phytotox...

Volume 2 consists of 11 chapters in which the distribution, land-use and management of red and lateritic soils of India, Sri Lanka, Bangladesh, Nepal, The Philippines, Vietnam, Kenya, Argentina and Bulgaria are described. There is some overlap with information on the Indian soils presented in volume 1, but the soil information on the other countries is stimulating reading. The internaŽ . tional...

27 Based on lipid analyses, 16S rRNA/rRNA gene single strand conformation polymorphism 28 fingerprints and methane flux measurements, influences of the fertilisation regime on 29 abundance and diversity of archaeal communities were investigated in soil samples from the 30 long-term (103 years) field trial in Bad Lauchstädt, Germany. The investigated plots followed 31 a gradient of increasing fe...

There is lack of adequate information on the fertility situations of the soils of Abakaliki urban flood plains. Farming activities have therefore been carried out on the surrounding uplands only. This study was therefore conducted in 2009 raining seasons, to evaluate the fertility status of the flood plains and compare it with the fertility of the uplands with a view to making recommendations f...

While bitter manioc has been one of the most important staple crops in the central Amazon for thousands of years, there have been few studies of its cultivation in the fertile whitewater landscapes of this region. Anthropological research on bitter manioc cultivation in the Amazon has focused almost exclusively on long-fallow shifting cultivation in marginal upland areas of low soil fertility. ...

Agronomic use of biosolids has raised concern that plant availability of biosolids-Cd will increase with time after cessation of biosolids application. It has been demonstrated that chemical extractability of Cd is persistently decreased in biosolids-amended soils. This study was conducted to determine if Cd phytoavailability in long-term biosolids-amended soils was also persistently decreased....

High elevation talus soils are extreme environments for life. They are pertinent to the hydrology and biochemical cycling of high elevation ecosystems that supply drinking water to major metropolitan areas, and are undergoing change as a result of N deposition. As biological systems, they are virtually unstudied. In order to gain a basic understanding of these important systems, we studied the ...

This study investigates the dissolution, sorption, leachability, and plant uptake of tungsten and alloying metals from canister round munitions in the presence of model, well characterized soils. The source of tungsten was canister round munitions, composed mainly of tungsten (95%) with iron and nickel making up the remaining fraction. Three soils were chosen for the lysimeter studies while fou...

This investigation was undertaken to determine the factors influencing electrokinetic remediation of soils from petroleum pollutants. The remediation method was applied in two versions: (i) static and (ii) flowing, when a sample was washed with leaching solution. It was found that all the soils studied can be purified using this technique. It was also observed that the mineral and grain-size co...