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引用次数: 1
摘要
:本文介绍了2005年至2010年6年期间Brattegg河流域(斯匹次卑尔根西南部)确定的永久冻土活动层的渗透率。各种地貌形式的风化岩石的现场渗透率测量技术可以评估其导水率(k)的值。k值的高变异性,范围从6.37 10−9到4.0 10−3 m s−1,表明岩石的渗透率从粘土中的非常低到砾石碎石中的非常高。在地貌形态中,透水性最好的是漂石覆盖层和岩屑,最低的是花纹地面。所获得的结果用于确定地下水径流(q tot),假设活动层含水层的单位厚度。Brattegg河流域的q tot值计算为130 L s−1,占平均地表径流的15%至47%。
Permeability of active layer sediments and groundwater runoff in Brattegg River catchment, SW Spitsbergen
: This paper presents the permeability of the permafrost active layer determined in the Brattegg River catchment (SW Spitsbergen) for the 6-years interval of 2005–2010. The field permeability measurements technique of weathered rocks on various geomorphological forms allows to assess the value of their hydraulic conductivity ( k ). High variability of k values, ranging from 6.37 10 −9 to 4.0 10 −3 m s −1 , indicates the permeability of rocks from very low in clay to very high in gravel-rock rubble. Among the geomorphological forms, the best permeability was observed in boulder covers and rock debris, and the lowest one in patterned ground. The obtained results were used to determine the groundwater runoff ( q tot ), assuming the unit thickness of the active layer aquifer. The q tot value from the Brattegg River catchment was calculated at 130 L s −1 , which is from 15% to 47% of the average surface runoff.
期刊介绍:
The quarterly Polish Polar Research edited by the Committee on Polar Research of the Polish Academy of Sciences is an international journal publishing original research articles presenting the results of studies carried out in polar regions.
All papers are peer-reviewed and published in English.
The Editorial Advisory Board includes renowned scientist from Poland and from abroad.