Prediction of Soil Organic Matter Using Ordinary Kriging Combined With the Clustering of Self-organizing Map: A Case Study in Pinggu District, Beijing, China Huang, Yajie; Ye, Huichun; Zhang, Liping; More Huang, Yajie; Ye, Huichun; Zhang, Liping; Zhang, Shiwen; Shen, Chongyang; Li, Zhen; Huang, Yuanfang Less Soil Science. 182(2):52-62, February 2017. Abstract Abstract Favorites PDF Get Content & Permissions Buy