By Tomoko M. Nakanishi, Keitaro Tanoi
This publication stories the consequences from on-site learn into radioactive cesium illness in a number of agricultural platforms plagued by the Fukushima Daiichi Nuclear strength Plant twist of fate that happened in March 2011. this is often the second one quantity from the learn teams shaped within the Graduate tuition of Agricultural and existence Sciences of The collage of Tokyo who've released the preliminary facts of their first quantity. during this publication, extra information amassed within the next years are offered to teach how the radioactivity point in agricultural items and their becoming environments have replaced with time. the knowledge make clear the path in which radioactive fabrics entered agricultural items and their flow between diverse elements (e.g., soil, water, and timber) inside of an environmental procedure (e.g., forests). The e-book involves quite a few subject matters, together with radioactivity inspection of meals items; decontamination trials for rice and cattle construction; the kingdom of illness in wild animals and birds, timber, mushrooms, and trees; the dynamics of radioactivity distribution in mountain and paddy fields; harm incurred by means of the forestry and fishery industries; and the switch in shoppers’ minds. The final bankruptcy introduces a real-time radioisotope imaging approach, the leading edge strategy to visualize genuine move of cesium in soil and in crops. this can be the single e-book to supply systematic info concerning the genuine swap of radioactivity, and hence is of serious price for all researchers who desire to comprehend the impact of radioactive fallout on agriculture. The venture is ongoing; the learn teams proceed their paintings within the box for additional evaluate of the long term effects.
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Additional info for Agricultural Implications of the Fukushima Nuclear Accident: The First Three Years
The reason for this significant decline is assumed to be the physical reduction of radiocesium in the soil caused by factors such as decay of 134Cs, fixation to the soil clay, decontamination by reversal tillage, and the effects of a thorough soil improvement effort implemented to increase the exchangeable potassium content to approximately 25 mg/100 g (dry soil) or higher, which is the guideline announced by Ministry of Agriculture, Forestry and Fisheries, Japan from 2012. 2. The inspections were conducted immediately after the harvesting of rice in 2012, 2013, and 99 % of the entire amount was inspected during a 4-month period, from September to December 2012 (Fig.
Thus, a reinvestigation of the accumulation levels of radioactive Cs in rice is needed in the Fukushima area. 1). The WRC consists of 67 varieties and covers 91 % of the genetic variation in about 37,000 rice landraces. 5 % of genetic variation in about 2000 Japanese rice landraces (Ebana et al. 2008; Kojima et al. 2005). We planted the 85 rice cultivars in the Fukushima paddy field on May 31st, 2011, and harvested them on September 23rd, October 4 Cesium Accumulation in Paddy Field Rice Grown in Fukushima from 2011 to 201.
Ohmori et al. Therefore, the behavior of radioactive Cs affected by fertilizers in paddy fields and andosols, which are the common field condition and soil-type in Japan, were not well elucidated. Thus, it is important to investigate the effects of K and N fertilizer on radioactive Cs absorption in rice grown in Japanese paddy fields. In the next chapter, we will describe radioactive Cs concentrations in rice grown in paddy fields under four different fertilizer conditions at Ishidairayama, Yamakiya, Kawamata-cho in Fukushima in 2011 and 2012.