At first,the meaning of the water transfer processes(WTP) over land surface is set forth and its uniqueness in arid and semi-arid region is discussed in this paper.

• 简要阐述了陆面水分过程的内涵,论述了干旱半干旱区陆面水分过程的独特性,提出了干旱半干旱区生态和土壤特性对陆面水分过程的敏感性。