Potential of artificial lichen used as rainwater catching materials in arid and semiar id regions

The biological and ecological characteristics，formation and functions of lichen soil crust and its effects on the process of soil hydrology are analyzed，and the feasibility of artificial lichen used as rainwater catching materials in arid and semi-arid areas is discussed．It is concluded that artificial lichen can be used as a green environment protecting materials tO construct the rainwater catching site in arid and semi-arid areas．