著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Tao Pei and Cheng-Zhi Qin and A-Xing Zhu and Lin Yang and Ming Luo and Baolin Li and Chenghu Zhou,Mapping soil organic matter using the topographic wetness index: A comparative study based on different flow-direction algorithms and kriging methods,Ecological Indicators,1470-160X,Elsevier BV,2010-05,10,3,610-619,https://cir.nii.ac.jp/crid/1360580236168570880,https://doi.org/10.1016/j.ecolind.2009.10.005