整地和仲夏排水期间稻田放射性铯排放率的测量与估算
Measurement and estimation of radiocesium discharge rate from paddy field during land preparation and mid-summer drainage.
作者信息
Miyazu Susumu, Yasutaka Tetsuo, Yoshikawa Natsuki, Tamaki Shouhei, Nakajima Kousei, Sato Iku, Nonaka Masanori, Harada Naoki
机构信息
National Institute for Rural Engineering, National Agriculture and Food Research Organization, 2-1-6 Kannondai, Tsukuba, Ibaraki 305-8609, Japan.
National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8567, Japan.
出版信息
J Environ Radioact. 2016 May;155-156:23-30. doi: 10.1016/j.jenvrad.2016.01.013. Epub 2016 Feb 16.
In this research, we evaluated the range of (137)Cs discharge rates from paddy fields during land preparation and mid-summer drainage. First, we investigated (137)Cs discharge loads during land preparation and mid-summer drainage and their ratio to the (137)Cs inventory of paddy field soil. We found that total discharge rates were 0.003-0.028% during land preparation and 0.001-0.011% during mid-summer drainage. Next, we validated the range of obtained total discharge of (137)Cs from the paddy fields using a simplified equation and literature review. As a result, we conclude that the range of total outflow loads of suspended solids for the investigated paddy field was generally representative of paddy fields in Japan. Moreover, the (137)Cs discharge ratio had a wide range, but was extremely small relative to (137)Cs present in paddy field soil before irrigation.
在本研究中，我们评估了稻田在整地和仲夏排水期间（137）铯的排放率范围。首先，我们调查了整地和仲夏排水期间（137）铯的排放负荷及其与稻田土壤（137）铯存量的比率。我们发现，整地期间的总排放率为0.003 - 0.028%，仲夏排水期间为0.001 - 0.011%。接下来，我们使用一个简化方程和文献综述验证了从稻田获得的（137）铯总排放量范围。结果，我们得出结论，所研究稻田的悬浮固体总流出负荷范围通常代表了日本的稻田。此外，（137）铯的排放比率范围很广，但相对于灌溉前稻田土壤中存在的（137）铯来说极小。
Zotero 插件