摘要
本文针对地中蒸渗计在冻结-冻融期存在的问题,利用实验站冻土及土壤水分势能资料,探索了冻土层的发育及其水分运移规律,通过对亚砂土不同埋深及不同年度的地中蒸渗计资料处理,得出冻结期和冻融期地中蒸渗计资料的处理方法及其埋深临界值。这对准确利用冻结-冻融期地中蒸渗计资料具有重要的指导意义。
The existing problems when the lysimeter is used in a freezing-thawing period are considered in this paper and data of the frozen soil and soil water potential of the experimental station are used.The rule of the permafrost development and its moisture migration are also explored.By analyzing data of lysimeter in the sandy soil at different buried depths and in different years,the lysimeter data processing method and the critical point of buried depth in the freezing period and thawing period are obtained.The results are of important instruction value for usage of lysimeter data of the freezing-thawing period.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
2012年第1期13-18,共6页
Hydrogeology & Engineering Geology
关键词
地中蒸渗计
潜水蒸发
冻融期
补给
埋深临界值
Lysimeter
evaporation of a phreatic aquifer
freezing-thawing period
melt water recharge
buried depth critical point