1. Development and Comprehensive Treatment on Small Catchment in Loess Plateau;Bureau of Resource, Environmental Science and Technology, Chinese Academy of Sciences (BREST-CAS),1992
2. Sediment sources and recent changes in the sediment load of Yellow River, China;Chen,1989
3. Land use change in a small catchment of northern Loess Plateau China;Chen;Agriculture, Ecosystems & Environment,2001
4. The Natural Environmental Characteristics and Evolvement;Comprehensive Survey Team on Loess Plateau of Chinese Academy of Sciences (COSTLOP-CAS),1991
5. A framework for land evaluation;FAO,1976