Search Results for: Ploughs soil erosion
نويسنده , , rolf arnt olsenb، نويسنده , , eiliv steinnesa، نويسنده , issue information : هفته نامه با شماره پیاپی سال pages : from page : to page : abstract : samples from the top organic layer of coniferous forest soils were collected at several locations in southern norway, a region with high surface soil
levels of pb, cd and zn. soil samples and samples of different morphological types of ectomycorrhiza were analyzed with respect to zn, pb, cu and cd. despite low levels in surface soils in the area, cu showed a remarkable degree of concentration in mycorrhizas, reaching values of ∼ ppm. the mean cu...
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