红壤约占我省土地总面积的46%,主要分布在丘陵和低丘岗地,也是林木容器育苗开展的主要地区。江西红壤按成土母质可分为5个类型:1.四纪红壤。质地粘重,底部常有红、黄、白相间的网纹层,透水透气性差,干时坚硬,湿时粘结,含水多时成糊状,有机质和善分都很缺乏。pH4.5—5.5。主要分布在河流中、下游及湖滨。2.石灰岩红壤。质地粘重,但较四纪红 Red soil accounts for about 46% of the total area of ​​our province’s land, mainly in hilly and low hillock, but also the main area for forest container seedling development. Jiangxi red soil according to soil parent material can be divided into five types: 1. Si Ji red soil. Texture sticky weight, the bottom often red, yellow, white and white reticulate layer, permeability permeability is poor, hard when dry, wet bonding, watery and more into a paste, organic matter and good points are lacking. pH 4.5-5.5. Mainly located in rivers, downstream and lake. 2. limestone red soil. Sticky texture, but more than four red