关键词: 科尔沁沙地, 丘间地, 植被演变, 种类组成

Abstract: From a study on the occurrence and successional characteristics of vegetation on bare land in interdunal areas in the Kerqin sandy region we note that: 1) The succession rate of interdune vegetation is very fast. 2) The annual herb, perennial herb and shrub stages are completed in 30 years. 3) Shannon-Wiener diversity and evenness increased with time through succession, though the community dominance index decreased. The influence of pasturing on the vegetation was also analyzed and is discussed.

Key words: Kerqin sandy land, Interdune, Vegetation succession, Species composition