TY - RPRT TI - Selection of training samples for updating conventional soil map based on spatial neighborhood analysis of environmental covariates AU - Gao, Hong AU - Zhang, Xinyue AU - Wang, Liangjie AU - He, Xianglin AU - Shen, Feixue AU - Yang, Lin PY - 2020 DO - 10.1016/j.geoderma.2020.114244 UR - https://www.osti.gov/biblio/1693602 ID - 1693602 ER -