摘要
根据所收集的土壤理化分析资料，探讨了广东坡地红壤类颗粒组成对土壤理化性质的影响．研究结果表明，土壤＜0．01mm物理性粘粒或是＜0．001mm粘粒含量与土壤结构系数、＜0．005mm孔隙度、土壤持水量、土壤阳离子代换量、土壤有机质、土壤N和P含量均呈显著正相关；＜0．001mm颗粒含量与土壤有效持水量呈显著指数相关。由此可见，土壤颗粒组成是影响土壤肥力的重要因素。
Based on the collected data, this paper deals with the effects of soil particle composition of red soil on its other soilphysical and chemical properties in Guangdong. It is indicated that there is a significant linear correlation of <0.01mmphysical clay or <0.001mm clay content with soil structure coefficient, <0.005mm porosity, water-holding capacity, CEC,OM content, total N and total P; and that there is a close exponent correlation between <0.01mm particle content andavailable water-holding capacity. The above results show that the fertility of latored soils is greatly controlled by soilparticle composition.
关键词
广东
颗粒组成
理化性质
坡地
红壤
soil particle compositing physical and chemical properties
red soils of slope land
