IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
贡嘎山地区137 Cs环境背景值及与不同高度带降水量的耦合趋势
Alternative TitleCoupling Trend between 137 Cs Environment Background Value and Precipitation Quantity of Different Height Belt
张文敬; 文安邦; 李伟; 李同阳
Corresponding Author张文敬
Source Publication青藏高原东缘环境演化与森林生态学术研讨会 ; 青藏高原东缘环境与生态
Conference Date2001-8-26~31
Conference Place四川成都
Publication Place成都市
Publisher四川大学出版社 ; 成都市
Funding Organization中国科学院贡嘎山高山生态系统观测试验站
Abstract自然界中不存在天然的137Cs。随降水带来的137Cs容易被土壤中的胶体颗粒吸附,且在地表中自身化学迁移极弱。如果某处的表层土壤没有被侵蚀和搬迁的动力环境,那么其中胶体颗粒中的137cs含量无疑与该处的降水量呈现某种相关关系。根据这一思路,在海螺沟海拔1 650m-4600m之间采集了8组研cs样品,据已有降水资料建立与137cs面积浓度的相关耦合关系,从而由研cs面积浓度推求出无降水资料地区的降水量。这一方法的进一步应用有望为高海拔地带降水量的研究提供一条有效途径。
Other AbstractThe natural 137 Cs doesn`t exist in'the nature.137Cs which was brought by Drecipitation is easily adsorbed by colloid granule in the soil and moves infirmly itself on the earth`s surface.137Cs quantity in colloid granule is affirmatively correlative to precipitation quantity without dynamical environment of erosion and movement in the topsoil.According to this idea,eight groups of 137Cs samples have been collected on altitude from 1 650 m to 4 600 m in the Hailuogou.Then correlative coupling relation between precipitation quantity and 137Cs area thickness Was erected according to existing precipitation data.As a result we can conclude precipitation quantity of region without precipitation data through 137Cs area thickness.The application of this means will provide an effective way to research precipitation quantity in high altitude.
Keyword137cs 环境背景值 耦合
Document Type会议论文
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
张文敬,文安邦,李伟,等. 贡嘎山地区137 Cs环境背景值及与不同高度带降水量的耦合趋势[C]. 成都市:四川大学出版社, 成都市,2002:129-133.
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