淮南低湿地土壤的成土母质多由河流携带来的细粒物质经长期淤积而成,其中有长江支流的淤积物,也有淮河的淤积物,均含有丰富的养分,尤其是长江支流(如滁河)的淤积物,质地粘重,潜在养分的含量更高。成滩后的淤积物又生长茂密的草本植物,大量植物残体的积累和腐烂,使土层积累了较多的有机物质,形成的土壤既湿又粘(多为重壤土 The soil-forming parent material of the low-wetland soil in Huainan is mainly composed of long-term sedimentation of fine-grained materials brought by the rivers, including the sediments of the tributaries of the Yangtze River and the sediments of the Huaihe River, all of which are rich in nutrients, especially the tributaries of the Yangtze River) sediment, sticky texture, higher potential nutrient content. Into the beach after the deposition of lush herbs and plants, a large number of plant debris accumulation and decay, so that soil accumulation of more organic matter, the formation of the soil is both wet and sticky (mostly heavy loam