Land | |
Impacts of Soil Properties, Topography, and Environmental Features on Soil Water Holding Capacities (SWHCs) and Their Interrelationships | |
Hyunje Yang1  Hyung Tae Choi1  Jaehoon Kim1  Hyeonju Yoo1  Honggeun Lim1  | |
[1] Forest Restoration and Resource Management Division, National Institute of Forest Science, Seoul 02455, Korea; | |
关键词: forest soils; pedotransfer function (PTF); digital soil mapping (DSM); machine learning model; random forest; variable importance; | |
DOI : 10.3390/land10121290 | |
来源: DOAJ |
【 摘 要 】
Soil water holding capacities (SWHCs) are among the most important factors for understanding the water cycle in forested catchments because they control available plant water that supports evapotranspiration. The direct determination of SWHCs, however, is time consuming and expensive, so many pedotransfer functions (PTFs) and digital soil mapping (DSM) models have been developed for predicting SWHCs. Thus, it is important to select the correct soil properties, topographies, and environmental features when developing a prediction model, as well as to understand the interrelationships among variables. In this study, we collected soil samples at 971 forest sites and developed PTF and DSM models for predicting three kinds of SWHCs: saturated water content (
【 授权许可】
Unknown