Japan STA Program: Subsurface Flow in Relation to Landslide Initiation

该奖项将提供长期的补充支持， 美国农业部林务局的罗伊·西德勒博士进行了研究， 与日本国立大学的谷诚博士进行合作研究 日本筑波林业和林产品研究所。 他们将调查森林山坡上的土壤管道如何影响 地下水流动状况，从而影响 山崩 土管道和大孔隙是公认的重要孔道 在强烈的暴雨中寻找地下水。 快速 将大量的水输送到不稳定的土壤表层 在风暴期间会产生水压积聚区， 在滑坡的开始。 现有的地下水流模型， 地下水响应没有充分解决的影响， 管流 谷博士实验室的研究工作是关于 土壤物理性质对地下水增深的影响 Sidle博士的地下水流过程研究背景， 滑坡模拟

This award will provide supplementary support for a long-term research stay by Dr. Roy Sidle of the USDA Forest Service to conduct collaborative research with Dr. Makoto Tani of the Forestry and Forest Products Research Institute in Tsukuba, Japan. They will investigate how soil pipes in forest hillsides influence the subsurface water flow regime, and thus affect initiation of landslides. Soil pipes and macropores are recognized to be important conducts for subsurface water during intense rainstorms. The rapid transport of large quantities of water into unstable soil mantles during storms can create zones of water pressure buildup, resulting in landslide initiation. Existing models of subsurface flow and groundwater response do not adequately address the influence of pipeflow. The research work of Dr. Tani's lab on the effects of soil physical properties on groundwater accretion will complement Dr. Sidle's research background on subsurface flow processes and landslide modelling.