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Estimation of 90Sr and 137Cs transfer from the Black Sea to the Mediterranean Basin after the Chernobyl NPP accident IBSS Repository
Egorov, V. N.; Polikarpov, G. G.; Stokozov, N. A.; Mirzoyeva, N. Yu..
The 90Sr and 137Cs inputs from the Black Sea to the Mediterranean Basin through the Bosporus Strait after the Chernobyl NPP accident were estimated. It is obtained that the 90Sr and 137Cs fluxes from the Black Sea to the Sea of Marmara are decreased with an effective exponential half-lives (T05) 9.5 years and 6.4 years, respectively. The estimations have shown that 110 TBq 90Sr and 250 TBq 137Cs in 1986-2000 was delivered from the Black Sea to the Mediterranean Basin after the Chernobyl NPP accident. The radioactive pollution of the Mediterranean Basin will continue for 5 half-lives, i.e. 47 years for 90Sr and 32 years for 137Cs. The total 90Sr and l37Cs inputs from the Black Sea into the Mediterranean Basin have been assessed as 168 TBq and 311 TBq,...
Tipo: Journal Contribution Palavras-chave: Сhernobyl NPP accident; 90Sr and 137Cs fluxes; Prediction; The Bosporus currents; Black Sea; Mediterranean Basin; Авария на Чернобыльской АЭС; Потоки 90Sr и 137Cs; Прогноз; Босфорское течение; Черное море; Средиземноморский бассейн Prediction Prediction http://aims.fao.org/aos/agrovoc/c_29367.
Ano: 2005 URL: http://repository.ibss.org.ua/dspace/handle/99011/243
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The effect of simulated heat-shock and daily temperature fluctuations on seed germination of four species from fire-prone ecosystems Acta Botanica
Zupo,Talita; Baeza,M. Jaime; Fidelis,Alessandra.
ABSTRACT Seed germination in many species from fire-prone ecosystems may be triggered by heat shock and/or temperature fluctuation, and how species respond to such fire-related cues is important to understand post-fire regeneration strategies. Thus, we tested how heat shock and daily temperature fluctuations affect the germination of four species from fire-prone ecosystems; two from the Cerrado and two from the Mediterranean Basin. Seeds of all four species were subjected to four treatments: Fire (F), temperature fluctuations (TF), fire+temperature fluctuations (F+TF) and control (C). After treatments, seeds were put to germinate for 60 days at 25ºC (dark). Responses differed according to species and native ecosystem. Germination percentage for the Cerrado...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Cerrado; Mediterranean Basin; Mean germination time; Physical dormancy; Post-fire germination.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000300514
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