Quantification of Tree Root Depth for Basin-Scale Sediment Yield Simulation
유역단위의 토사발생 모의를 위한 식생뿌리깊이의 정량화

Chulsang Yoo, Keewook Kim, Chang-Yeol Park, Deghyo Bae
2015 Korean Society of Hazard Mitigation  
This study quantified the tree root depth, an important factor in the simulation of basin-scale sediment yield. The data used in this study were those measured in the area of landslide due to heavy rainfall around July and August, 2006. These field survey data was quantified the relationship between slope and tree root depth using a probability density function (pdf). The tree root depth in this study considers both the gravitational direction and perpendicular direction to the plane. Finally,
more » ... he plane. Finally, a methodology to generate tree root depth data using the pdf decided. As results, the two parameter gamma distribution was selected and found to well represent the tree root depth data. However, one should consider the number of data available or other geomorphological conditions to decide if the quantification of tree root depth is with respect to the gravitational direction or perpendicular direction to the plane. The results in this study may be used effectively for the estimation of tree root depth in the basin-scale sediment yield.
doi:10.9798/kosham.2015.15.2.301 fatcat:zmfrofdfcneanoiwtozmtkyysq