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http://dx.doi.org/10.5532/KJAFM.2015.17.1.45

Spatial and Seasonal Variability of Soil Moisture Properties along Transect Line on a Forest Hillslope in the Cheong-Mi Catchment  

Gwak, Yong-Seok (Department of College of Engineering, Pusan National University)
Kim, Sang-Hyun (Department of College of Engineering, Pusan National University)
Jung, Sung-Won (Hydrologic Survey Center, Office Building, KINTEX)
Lee, Yeon-Gil (Hydrologic Survey Center, Office Building, KINTEX)
Lee, Jung-Hoon (Hydrologic Survey Center, Office Building, KINTEX)
Kim, Su-Jin (Forest Conservation Department, Forest Soil & Water Conservation Division, Korea Forest Research Institute)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.17, no.1, 2015 , pp. 45-57 More about this Journal
Abstract
Soil moisture is critical for understanding the spatial-temporal variability of hydrologic processes. The distributions of soil moisture have been explored along transect line in hillslope hydrology. In this study, we measured several soil moistures along transect lines during ten-month period at a hillslope located the Cheong-mi catchment. The soil moisture properties were expressed by simple statistical methods (average, standard deviation, and recession slope) and analyzed in terms of soil depths and transects from the seasonal context. Supplementary studies were also performed about the effect of location, topography and soil texture to the soil moisture responses. The spatial distributions of average soil moisture at deep soil layer were distinguished from those at near surface due to the possibility of expected factors such as subsurface lateral flow from upslope, preferential flow and existence of bedrock. The soil moistures in combined line affected from significant contribution of upper transect line were relatively higher(wetter), low variability compared to those in other transect lines and seemed to be under stabilization process. There are confirmed heterogeneity of soil moisture variation related with preferential flow and significant influence of soil texture for soil moisture properties in upslope.
Keywords
Soil moisture; Hillslope hydrology; Recession slope;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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