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~(137)Cs溶液污染水稻试验表明:苗期至孕穗期水稻对~(137)Cs吸收速度最快,抽穗期趋于平缓,灌浆期又有回升。~(137)Cs沿着水稻的地下器官向地上器官,营养器官向生殖器官转移。水稻中~(137)Cs比活度和土壤污染量之间存在一定正相关,但只有当土壤污染量提高到370Bq/g土时,水稻中~(137)Cs比活度才极显著上升。不同土壤栽培的水稻对~(137)Cs吸收能力不同,仅有深圳土壤栽培的水稻对~(137)Cs吸收能力极显著高于其它四个地区土壤。污染期不同,水稻对~(137)Cs吸收量也不同,灌浆期~(137)Cs溶液污染对水稻的影响极显著高于其它时期。
~ (137) Cs solution contaminated rice experiments showed that: the seedling to booting stage of the rapid absorption of ~ (137) Cs rice, heading stage tends to be flat, but also picked up during filling. ~ (137) Cs transferred to above-ground organs and vegetative organs of reproductive organs along the rice underground organs. There was a positive correlation between ~ (137) Cs specific activity and soil pollution in paddy rice, but the specific activity of ~ (137) Cs in rice increased significantly only when the soil pollution increased to 370Bq / g soil. The uptake capacity of 137 Cs in different soil cultivated rice was different, only the absorption capacity of ~ (137) Cs in Shenzhen cultivated rice was significantly higher than that in the other four soils. Different types of rice had different uptake of ~ (137) Cs, and the effect of 137Cs solution during filling stage on rice was significantly higher than that of other periods.