Diurnal Pattern of Soil Water Fluxes in Subsurface Zone and Its Simulation Analysis

详细信息   

• 责任者：Zeng Yijian (School of Water Resources and the Environment ; China University of Geosciences ; Beijing 100083 ; China) ; Wan Li
• 刊名：Earth Science Frontiers
• 出版年：2008
• 卷期：15（5）
• 关键词：浅层含水层 ; shallow aquifers ; 包气带 ; unsaturated zone
• 页码：p.330-343
• 图表：13 illus., 58 refs.
• 分类号：1701
• issnNo：ISSN1005-2321
• isbnNo：CN11-3370/P

摘要

In desert and semi-desert areas, vapor movement is often an important part of the total flux since it controls the partitioning of available energy into latent and sensible heat fluxes into the atmosphere. In addition, biological processes such as soil microbial activity and plant growth depend on the moisture and temperature status in the vadose zone, which are mainly influenced by the vapor movement. An experiment, in which the hourly measurements of water vapor flux in the vadose zone were reported, was conducted in a sand-filled bunker at a field site. The numerical analyzes provided insight into the diurnal movement of liquid water and water vapor driven by the gradients of pressure heads and temperatures in the subsurface zone.