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Official Journal of the Japan Wood Research Society

Fig. 4 | Journal of Wood Science

Fig. 4

From: Tracing radioactive cesium in stem wood of three Japanese conifer species 3 years after the Fukushima Dai-ichi Nuclear Power Plant accident

Fig. 4

Radial distribution of the 137Cs/133Cs ratio in wood sampled at different vertical positions in 2014. ae Japanese cedar (Cryptomeria japonica); f, g Japanese cypress (Chamaecyparis obtusa); h, i Japanese larch (Larix kaempferi). ND letters indicate that 137Cs activity in the samples was under the detection limit and show the detection limit values. SW sapwood, HW heartwood

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