Dissolved organic carbon(DOC) adsorption and its influence factor on the soil of Chinese fir plantation were studied with IM isotherm in laboratory experiments. The quantities of DOC adsorption in the lower soil are greater than that of the upper soil.

• 用模拟实验的方法借助原始物质吸附等温线对杉林土壤溶解有机碳(DOC)的吸附及其影响因素进行了研究。