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珠江口外陆架区溶解态~(223)Ra和~(224)Ra的季节性分布及影响因素分析
Authors
李青
王张勇
王树玲
王桂芝
Publication date
15 April 2014
Publisher
Abstract
该文调查了珠江口外陆架区一个断面上223rA和224rA随季节变化的活度分布及其影响因素。夏季珠江径流量最大,故在距离河口最近的A9站位表层镭活度夏季高于其他季节。但夏季珠江冲淡水扩散方向偏离本研究的断面方向,故其整个剖面平均活度小于沉积物贡献非常大的秋季的垂向平均活度。春季,珠江径流量较大,但其扩散方向偏离断面方向,故春季各个站位的垂向平均活度均小于其他季节。珠江口外陆架区溶解态223rA和224rA的分布受控于沉积物、珠江径流量及珠江冲淡水的扩散方向。973计划(编号:2009CB421204); 国家自然科学基金青年基金项目(编号:41006041); 高等学校博士学科点专项科研基金资助课题(20090121120022
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Last time updated on 16/06/2016