Chinas temperate grassland desertification tendency based on keywords frequency analysis

By using frequency analysis of keywords, this paper analyzed all periodicals in agricultural field based on Tsinghua Tongfangs Chinese Journal FullText Database from 1980 to 2008. The research status of Chinas desertification study in temperate grassland was analyzed from research field, research focus and main research units to draw an outline of the main field and development tendency in Chinas temperate grassland desertification study. For grassland workers, the constant research focus still is the grassland desertification and grassland animal husbandry; climate change, desertification control, sandstorm and overloading and overgrazing have become new hot spots in this field.