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1、高分子化学家认为:木质素含量决定着形成腐植酸的含量(郭圣荣主译《高分子化学》,化学工业出版社,2004)。2、土壤学家认为:土壤有机物通过自然矿化/腐殖化作用形成腐殖质——腐植酸,少则两三年,多则一百年。目前,我国土壤有机质平均含量在2.5%左右(全国农技推广服务中心《测土配方施肥土壤基础养分数据集(2014-2015)》)。按照土壤腐植酸所占比重60%计,腐植酸含量不足1.5%。3、煤化工学家认为:泥炭、风化煤、褐煤中含有丰富的腐植酸。其中,泥炭形成需要几千年,
1, polymer chemists think: lignin content determines the formation of humic acid content (Guo Shengrong main translation “Polymer Chemistry”, Chemical Industry Press, 2004). 2, soil scientists believe that: soil organic matter through natural mineralization / humification of the formation of humus - humic acid, at least two or three years, as many as one hundred years. At present, the average content of soil organic matter in China is about 2.5% (National Soil Science and Technology Extension Service Center, “Soil Testing and Fertilization Soil Basic Nutrient Data Set (2014-2015)”). In accordance with the proportion of soil humic acid account for 60%, humic acid content of less than 1.5%. 3, coal chemical scientists believe that: peat, weathering coal, lignite is rich in humic acid. Among them, peat formation takes thousands of years,