Abstract:

Wasteland is a special type of reserved land resources in out country.Control，redevelopment and utilization of the wasteland are important to the land use sustainable development.At present，many cases of the landscape renewal of the wasteland are reported in China，however，the systematic and deep research on the definition and classification of wasteland is rare.In order to promote the study of the wasteland，the concept of wasteland and discriminant model were put forward based on the origin and development of wasteland both at home and abroad，and on the characteristics of socialeconomic development of our country at nowadays.The wasteland was systematically classified by the standard of land assort with 4 different aspects.The formation cause of different types of wasteland was elaborated systematically from two sides.Considering the effective control and further development of wasteland in our country，some suggestions such as to establish and improve the regulatory agencies，to improve policies and regulations，to strengthen basic research and to promote the further development and reutilization of wasteland were put fbrward according to its evolution characteristic at present.

Key words: wasteland/ definition of the concept/ classification/formation cause