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采用生态样块方法，研究了白浆土区不同地貌生态条件对人参红皮病的影响。结果表明，床土中还原物质浓度随地貌类型而变化，其中活性有机质与参根病情指数相关性最高，成为人参红皮病发生的主要因素；铁的富集是人参红皮病的主要特征，锰为次要因素；周皮铁主要为络合物，包括活性亚铁、活性高铁和非活性铁，它们相互转化，视土壤水分状况为转移；Ｆｅｏ／Ｆｅｄ 与活性有机质相关显著，表明无定形铁是锈斑铁的主要来源；床土通气性高，持水孔度也高，表明床土中氧化过程和还原过程同时进行，对促进土壤中铁的转化具有重要意义。
The ecological sample method was used to study the effects of different landform ecological conditions on erythroderma disease in white soil area. The results showed that the concentrations of the reducing substances in the bed soil varied with the types of the geomorphology. The active organic matter had the highest correlation with the ginseng root index, which was the main factor for the occurrence of eryngosis. The iron enrichment was the main characteristic of ginseng erythroderma. Manganese as the secondary factor; Zhoupi iron mainly complex, including active ferrous, active high-speed iron and non-active iron, they transform each other, depending on the soil moisture conditions for the transfer; Feo / Fed and active organic matter significant correlation, indicating that amorphous Iron is the main source of the rusty iron. The high bed air permeability and the high water holding porosity also indicate that the oxidation process and the reduction process in the bed soil are simultaneously carried out, which is of great significance to promote the iron transformation in the soil.