广东红壤类土壤结构特征及其影响因素

Structure characteristics of red soils and their effective factors

探讨了广东红壤的结构特征及其影响因素。研究结果表明,红壤类土壤具有较好的团聚性、较高的水稳性,但孔隙性较差。土壤结构受土壤颗粒组成、有机质含量和利用方式的影响。红壤开垦后,土壤团聚性受到破坏,但孔隙性有所改善。为改善红壤的土壤结构,应该增加土壤的有机质含量。

This paper deals with the soil structure characteristics of red soils in Guangdong province and their effective factors. Results indicate that soil structure of red soils in the province is generally characterized by higher aggregation, higher water stability, and poorer porosity. It is found that soil structure of red soils is influenced by soil particle composition, O.M. content in the soils and utilization pattern; that after being utilized for farming.soil aggregate will be deteriorated and porosity will be improved. In order to improve soil structure of red sois, more attention should be paid to increasing organic matter content in the soils.