多伦县退化草场的封育效果分析  

Effects of Closing the Degenerated Grassland in Duolun County

作　　者：邢永亮 余伟莅[2] 郭建英[2] 王利兵[3] 胡小龙[2] 

机构地区：[1]呼和浩特市大青山自然保护区管理局,内蒙古呼和浩特010010 [2]北京林业大学水土保持学院 [3]中国林业科学研究院,北京100091

出　　处：《内蒙古林业科技》2008年第2期32-35,共4页Journal of Inner Mongolia Forestry Science and Technology

摘　　要：以多伦县地区2001年围封的退化草场为研究对象,通过对该样地植物的盖度、密度、频度、高度、地上生物量及植物物种多样性连续7年的调查和研究。结果表明,在该地区,退化草场一经封育其植被盖度、草层高度、牧草产量明显增加,植被恢复较快。恢复后的植被如继续封育,其封育效果已不明显。经研究,在浑善达克沙地,对于退化草场的封育期以4年为宜。According to the investigation on plant coverage, density, frequency, height, aboveground biomass and species diversity of the degenerated grassland closed in 2001 in Duolun County, the results show：in this area, after closing the degenerated grassland, the plant coverage, height and herbage output increase obviously and the vegetations recover quickly. But the effect of closing the degenerated grassland isn＇ t distinct if closing continuously. In Hunshandake Sandy Land, the closing time for the degenerated grassland is 4 years.

关 键 词：围栏封育 植物物种多样性 生物量 

分 类 号：S812.8[农业科学—草业科学]