Thaw depth thaw line than clays. Yet another factors are the vegetation and the percentage of the soil organic matter, which influence the bulk density of the soil, and hence thermal conductivity. Thaw depth In soil science, the thaw depth or thaw line is the instantaneous level down to which the soil has warmed to zero degrees celcius. The active layer thickness is the maximum thaw depth over a period of two years. The layer of soil over the thaw depth is called the active layer, while the soil below is called permafrost. The term frost front refers to the varying position
Myakka (soil) Myakka (soil) Myakka soil is the official state soil of Florida, which has more than of land composed partly or entirely of Myakka soils. Its name derives from a Native American word that means "Big Waters". This soil is primarily located in broad flatwoods in irregularly shaped areas ranging from 5 to 500 acres in size. The organic matter content and fertility of the soil is low. Most areas where this soil occurs are native range or improved pasture, although some is used for citrus or vegetable farming. Some counties in Florida where this soil occurs are Hendry, Collier, Glades,