Storm runoff processes in a small forested drainage basin |
| |
| Authors: | Tadashi Tanaka |
| |
| Institution: | (1) Institute of Geoscience, University of Tsukuba, 305 Ibaraki, Japan |
| |
| Abstract: | A brief review was made of storm runoff processes and the mechanisms of its generation in relation to subsurface water behaviors in a small forested drainage basin located in the western suburbs of Tokyo, Japan. The results of field investigations showed that the main source of storm runoff was groundwater flow and that the rapid and large amounts of groundwater discharge during a storm event could not be explained solely by the traditional concept of Darcian matrix flow. Several mechanisms such as pipe flow, air pressure effect, and capillary barrier effect were recognized that would induce a rapid response of groundwater to storm events depending on differences in local hydrologic conditions. All of these mechanisms were chiefly attributed to inhomogeneities of the soil deposits. The importance of dynamic behaviors of subsurface water during a storm event was emphasized in considering the mechanism of storm runoff generation. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
