Abstract:The Heihe River Basin,as a typical inland river basin in the arid region of northwest China,is composed of different ecosystems such as mountain,oasis,and desert.Its landscape structure is mainly manifested by the desert oasis river pattern,simple composition,coarse grain size,heterogeneous mosaics,and high dependence on water sources.Our objectives in this paper were to analyse the above characteristics of inland basins and to study the application of GIS in landacape mapping and landscape structure anal...