Radiocaesium accumulation in stemwood: Integrated approach at the scale of forest stands for contaminated Scots pine in Belarus

Goor, François; Thiry, Yves; Delvaux, Bruno

doi:10.1016/j.jenvman.2006.08.008

Cited by 6 publications

(1 citation statement)

References 32 publications

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“…In addition, the higher initial 137 Cs interception for YC generated a delayed downward transfer of 137 Cs from the crown to the forest floor, and also from the organic layer to soil 0–3 cm. In the next decade, the importance of forest floor thickness is expected to play a key role in further 137 Cs migration and resulting vertical distribution as evidenced in post-Chernobyl studies75152. Focusing on the soil 137 Cs profile, we observed that for the MC plot, 22% of the 137 Cs soil inventory is present in the organic layer and around 68% in the 0–8 cm mineral layers (Fig.…”

Section: Resultsmentioning

confidence: 76%

Radiocaesium partitioning in Japanese cedar forests following the “early” phase of Fukushima fallout redistribution

Coppin

Hurtevent

Loffredo

et al. 2016

Sci Rep

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Our study focused on radiocaesium (137Cs) partitioning in forests, three vegetation periods after the Fukushima Daiichi nuclear power plant accident. 137Cs distribution in forest components (organic and mineral soil layers as well as tree compartments: stem, bark, needles, branches and roots) was measured for two Japanese cedar stand ages (17 and 33 years old). The results showed that around 85% of the initial deposit was found in the forest floor and topsoil. For the youngest stand almost 70% of the deposit is present in the forest floor, whereas for the oldest stand 50% is present in the 0–3 cm mineral soil layer. For trees, old and perennial organs (including dead and living needles and branches, litter fall and outer bark) directly exposed to the fallout remained the most contaminated. The crown concentrated 61–69% of the total tree contamination. Surprisingly the dead organs concentrated 25 ± 9% (young cedars) to 36 ± 20% (mature cedar) of the trees’ residual activity, highlighting the importance of that specific compartment in the early post-accident phase for Japanese cedar forests. Although the stem (including bark) represents the highest biomass pool, it only concentrates 3.3% and 4.6% of the initial 137Cs deposit for mature and young cedars, respectively.

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Section: Resultsmentioning

confidence: 76%