Abstract:Hunshandak Sandy Land is located in the south part of Xilingol League of Inner M ongolia (N 42°10′ ~43°50′,E 112°10′~116°30′). It is about 260 km lon g from east to west, 30 to 100 km in width with the altitude ranging from 1100 t o 1300 m. Sand dune and inter-dune lowland are the two main physiognomy types, which have a significant effect on the vegetation. The sharply heterogeneous env ironmental conditions result in the occurrence of diverse vegetation types inclu ding woodland, shrubs, steppes and mea...