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本文研究了酸性风化煤对土壤胶体特性的影响。1.新疆九道弯风化煤中有机物质和活性腐殖质含量较高,呈酸性,其羧基、酚羟基和缓冲性能都高于哈密褐煤和吉木萨尔泥炭,电泳速度也较高。2.酸性风化煤能够与土壤(苏打碱化水稻土)粘粒相互作用。施用风化煤后的土壤,水稳性复合体的含量也增高。土壤复合体的缓冲性能增强,极限pH降低,阳离子交换量和吸水量增大,电泳速度降低。这说明施用风化煤后,在一定程度上可改善土壤复合胶体的物理化学性质,从而提高土壤肥力。
In this paper, the effect of acidic weathered coal on soil colloidal properties was studied. 1. Xinjiang nine road weathering coal organic matter and active humus content is high, acidic, the carboxyl, phenolic hydroxyl and buffer properties are higher than the Hami lignite and Jimusar peat, electrophoresis speed is higher. Acidic weathering coal can interact with soil (soda alkalized paddy soil) cosmids. The content of soil-water stable composites also increased after application of weathering coal. The buffer performance of soil composites is enhanced, the limit pH is decreased, the cation exchange capacity and water absorption are increased, and the electrophoresis speed is reduced. This shows that the application of weathering coal, to a certain extent, can improve the physical and chemical properties of soil compound colloids, thereby increasing soil fertility.