Les Neiges D'antan
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منابع مشابه
Chemical behaviour of hydrophobic micro - pollutants during the melting of snow
During two periods of snow melting daily bulk samples of snow were taken on a Dolomite plateau in the rural karst region of northeast Bavaria (Federal Republic of Germany). The snow samples were analysed for PAHs by HPTLC and for BHCs by GC. Conductivity and pH were also measured. Molecular substance ratios, pollutant loadings and enrichment factors in the meltwater were calculated from the con...
متن کاملEstablishing Winter Origins of Migrating Lesser Snow Geese Using Stable Isotopes
Increases in Snow Goose (Chen caerulescens) populations and large-scale habitat changes in North America have contributed to the concentration of migratory waterfowl on fewer wetlands, reducing resource availability, and enhancing risks of disease transmission. Predicting wintering locations of migratory individuals is critical to guide wildlife population management and habitat restoration. We...
متن کاملEgg size as a predictor of nutrient composition of eggs and neonates of Canada Geese (Branta canadensis interior) and Lesser Snow Geese (Chen caerulescens caerulescens)
Fresh and pipped eggs were collected to provide data on nutrient composition of eggs and neonates, respectively, of Canada Geese (Branta canadensis interior) and Lesser Snow Geese (Chen caerulescens caerulescens). We sought to determine how well a commonly used and simple index like estimated egg volume or “egg size” predicted egg composition and neonate characteristics including body compositi...
متن کاملSnowmelt sensitivity to radiation in the urban environment
Despite having the same snowmelt processes, snowpacks in urban environments experience a range of conditions different from those of rural areas. Melt is intensified at some sites due to greater radiative energy. Shading, however, can reduce radiation and melt at other sites. Changes to the radiation balance and snowpack processes have been investigated. A physical snowpack model was developed ...
متن کاملSensitivity of pH in a boreal stream network to a potential decrease in base cations caused by forest harvest
Increased forest harvest with more whole-tree utilization can decrease base cations (BC) in soils and stream runoff. This paper analyses how reducing stream BC changes the capacity of a boreal stream network to buffer pH changes. We estimated change in stream pH during spring snowmelt in 60 locations throughout a 68 km2 boreal catchment in northern Sweden with different scenarios of BC removal ...
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ورودعنوان ژورنال:
- The Ulster Medical Journal
دوره 52 شماره
صفحات -
تاریخ انتشار 1983