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^(60)Co在水生生态系中的迁移富集和分布 被引量:1

Transfer,Enrichment and Distribution of ^(60)Co in Aquatic Ecosystem
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摘要 采用模拟污染物的同位素示踪技术研究了60Co在水生生态系中的迁移、消长和分配动态。结果表明,60Co进入水中后,在水生生态系中发生沉淀或与其他离子络合或被水生生物吸收或被吸附等形式在系统中迁移和转化,从而在系统各部分中分配和积累。在引入后的很短时间内,池水中60Co的比活度迅速降至一定值后缓慢下降;底泥通过与60Co进行离子交换,富集了大量的60Co;水葫芦也可在短期内吸附大量的60Co;螺蛳和鲫鱼对60Co的吸附能力较弱,螺蛳肉中60Co的富集率大于在壳中的富集率,60Co在鱼体内的分布主要集中在内脏中。60Co在系统各部分的量均受时间的影响。 The dynamics of transportation, accumulation, disappearance and distribution of ^60Co in a simulated aquatic ecosystem was studied by isotope-tracer technique. When ^60Co was introduced into aquatic system, it was transported and transformed via depositing, chelating with other ions, adsorption and absorption by aquatic living things, which resulted in the distribution and accumulation in individual part of the living things. After introduction, the specific activity of ^60Co in the water decreased sharply to a certain value in a short time and then decreased slowly. The sediment accumulated a large amount of ^60Co by ion exchange. The water calabash could also adsorb a large amount of ^60Co in a short period of time. Snail and fish had a poor capacity of adsorbing ^60Co. The amount of ^60Co in the snail flesh was greater than that in the shell, and the distribution of ^60Co in the fish was mainly in the viscera. The amount of ^60Co in individual compartment in the system was affected by time.
出处 《农业环境科学学报》 CAS CSCD 北大核心 2006年第6期1566-1570,共5页 Journal of Agro-Environment Science
基金 国家自然科学基金资助项目(39570149) 江苏省环境保护厅资助项目(2003076)
关键词 ^60CO 水生生态系统 迁移与分布 放射生态学 ^60Co aquatic ecosystem migration and distribution
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  • 1Whicker F W,Schultz V.Radioecology:Nuclear Energy and the Environment[M].Volume Ⅰ,Florida:CRC Press,Inc,1982.155. 被引量:1
  • 2Kruglov S V,Vasil' yeva N A,Kurinov A D,et al.Distribution of radionuclides from Chernobyl fallout with regard to fractions of the soilparticle distribution of sod-podzolic soils[J].Eurasian Soil Science,1996,28:7,26-35. 被引量:1
  • 3Yirchenko Ye P,Agapkina G I.Organic radionuclide compounds in soils surrounding the Chernobyl Nuclear Power Plant[J].Eurasian Soil Science,1993,25:12,51-59. 被引量:1
  • 4孙志明,陈传群,王寿祥,王继延.放射性钴在模拟水稻田中的迁移模型[J].生态学报,2001,21(6):938-941. 被引量:14
  • 5魏建鹏 陈传群 等.^60Co在水生-陆生生态系统中迁移动力学研究[J].生态学报,2000,20:61-64. 被引量:4
  • 6陈寿椿,唐春元,于擎德.重要无机化学反应(第三版)[M].上海:上海科学技术出版社,1994.CHEN Shou-chun,TANG Chun-yuan,YU Qing-de.The Important Inorganic Chemistry Reactions(3rd ed)[M]. Shanghai: Shanghai Science and Technology Press,1994. 被引量:7
  • 7赵希岳,史建君,刘立丽,张永熙,陈传群,王寿祥.放射性核素^(95)Zr在土壤中吸附的研究[J].农业环境保护,2001,20(5):305-307. 被引量:9
  • 8赵希岳,史建君,王寿祥,陈传群.小麦-土壤系统中^(95)Zr的消长动态[J].农业环境保护,2002,21(6):493-495. 被引量:2
  • 9王云等编著..土壤环境元素化学[M].北京:中国环境科学出版社,1995:394.
  • 10熊毅等编著..土壤胶体 第3册 土壤胶体的性质[M].北京:科学出版社,1990:575.

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