Ming-Song Zhaoa b c David G. Rossitera d De-Cheng Lia Yu-Guo Zhaoa Feng Liua Gan-Lin Zhanga  Corresponding author contact information E-mail the corresponding author. Mapping soil organic matter in low-relief areas based on land surface diurnal temperature difference and a vegetation index. Ecological Indicators http://dx.doi.org-10.1016-j.ecolind.2013.12.015