what is natural vegetation

Natural vegetation refers to a plant community that has grown naturally without human aid and has been left undisturbed by humans for a long time. It is a plant cover that develops with little or no human interference. Natural vegetation can still be seen over vast areas of the wet. Natural (and semi-natural) vegetation is defined as “vegetation where ecological processes primarily determine species and site characteristics” . Human activities may influence vegetation interaction but do not dominate or remove ecological processes. The top three levels (class, subclass, formation) are coarse and describe major ecological categories on a global scale. These levels emphasize physiognomy, a combination of the external appearance of vegetation, its vertical structure, and the growth forms of the dominant taxa. The middle levels (division, macrogroup, group) reflect distinctive combinations of species in the context of regional and continental environmental variables and processes such as water cycles and fire patterns. The lowest levels (alliance and association) are the most fine-grained, based on diagnostic and/or dominant species and compositional similarity reflecting. Examples of natural vegetation include natural forests, thorn forests, and grasslands.