Abstract:The results obtained from this study indicate that a kind of very fertilized soil named limestone soil, can be evolved from the parent rock of limestone under the interactions of northern tropical climate and vegetation condition, which is abundant in organic matter, nitrogen and other nutrients, such as calcium, magnesium, potassium, iron, manganese, zinc etc, and also has a high waterholding capacity. Therefore it is called"Tropical chernozem". The entire environment is very poor because of little soil with large quantity of stone in this area, but certain limited is exellent so that lush grasses and shrubs of which most have important economic value can grow on the rock caves and cracks covered with only 5% soil. Meanwhile other precious or valuable tree species which are calcipete, fertile and suitable in site can be planted easily.