Basically, there are two types of ecosystems Natural Ecosystems and Artificial Ecosystem. However, there are several subtypes of these two types of ecosystem.
Classification of Ecosystem
They are self-regulating systems without much direct human interferences and manipulations. There are several examples of natural ecosystem Viz. River, pond, lake, ocean, forest, desert, and grassland etc. Based on the type of habitat, the natural ecosystems are further categorized into terrestrial and aquatic. Terrestrial ecosystems include deserts, forests, and grasslands. Aquatic ecosystems can be either freshwater like lakes, ponds, streams, or salt water like marine, estuaries type.
Artificial ecosystem are man-made. Human activities modify or convert natural ecosystems into man-made ecosystems. For example, natural forests are cut and the land is used for tree plantations or agricultural activities. Other examples of artificial ecosystems include gardens, parks, and aquaria. In these ecosystems, man manipulates the physio-chemical environment for his own benefit.