| digestibility, n balance and blood metabolite levels in alpine goat wethers fed either water oak or shining sumac leaves. | eight alpine wethers (8-9 months of age, 27.5+/-1.10kg body weight (bw)) were randomly assigned to consume, free-choice, either shining sumac (rhus copallina) or water oak (quercus nigra) leaves as a sole diet. leaves were collected and dried prior to feeding. a 14-day adaptation period was followed by a 4-day total fecal and urine collection. chemical composition (%) of the fed water oak and shining sumac leaves revealed similar levels of om (95.9 and 94.1) and n (1.54 and 1.42) but higher conc ... | 2001 | 11295394 |
| soil metal concentrations and vegetative assemblage structure in an urban brownfield. | anthropogenic sources of toxic elements have had serious ecological and human health impacts. analysis of the soil samples from a brownfield within liberty state park, jersey city, nj, usa, showed that arsenic, chromium, lead, zinc and vanadium exist at concentrations above those considered ambient for the area. accumulation and translocation features were characterized for the dominant plant species of four vegetative assemblages. the trees betula populifolia and populus deltoides were found to ... | 2008 | 17900771 |
| a geochemical study of toxic metal translocation in an urban brownfield wetland. | rhizosphere soil and dominant plant samples were collected at a brownfield site in new jersey, usa, during summer 2005 to evaluate plant metal uptake from the contaminated soils. metal concentrations varied from 4.25 to 978 μg g(-1) for as, 9.68-209 μg g(-1) for cr, 23.9-1870 μg g(-1) for cu, and 24.8-6502 μg g(-1) for zn. a wide range of metal uptake efficiencies in the roots, stems and leaves was found in this study. data showed that (1) betula populifolia has high zn, cu and as accumulations ... | 2012 | 22459711 |