Ecological Succession in Rajasthan with Special Reference to North-Eastern Areas

Succession is the order of colonization of species in an ecosystem from a barren or destroyed area of land. Mosses and lichens are the first species that inhabit an area. They make the area suitable for the growth of larger species such as grasses, shrubs and finally trees . Sehima nervosum type on the hills and piedmont regions, Dichanthium annulatum type on older alluvial flat lands with sand clay loam to clay soils, Cenchrus type on well drained alluvial soils, Lasiurus sindicus type on loose sandy soils, Desmostachya bipinnata type on young alluvium, Sporobolus-Dichanthium annulatum type on low-lying heavy soils and Panicum turgidum type on sand dunes. Stable disclimax associations (grassland types) and seral communities within the associations are discussed in north eastern areas of Rajasthan.