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《Acta Botanica Boreali-Occidentalia Sinica》 2011-03
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Characteristics of Juniperus rigida Open Forest in Junger Loess Hill-gully Region

ZHAO Li-qing,YANG Jie(College of Life Science,Inner Mongolia University,Huhhot 010021,China)  
The breast diameter,height,plant number and community structure of Juniperus rigida open forest,distributed in Junger loess hill-gully region of Inner Mongolia were investigated by quadrat method.The result shows that J.rigida open forest has obvious tree,shrub and herb layers,such as the Ass.J.rigida-Ostryopsis davidiana-Carex pediformis,Ass.J.rigida-Rosa xanthina-C.pediformis,Ass.J.rigida-R.xanthina-C.korshinskyi.If the habitat keeps stable continuously,it will be replaced by Ass.Quercus liaotungensis+J.rigida or Ass.Pinus tabulaeformis+J.rigida.If the habitat is disturbed continuously,it will be replaced by shrub communities or grassland communities,even bare slope.J.rigida open forest has highly species richness,but its habitat is vulnerable,the stand density is low,the stand average breast diameter and average height is smaller,so J.rigida open forest is not suitable for timber forest,which should been protected as soil and water conservation forest and provenance forest.
【Fund】: 内蒙古自然科学基金(2009BS0505);; 国家自然科学基金(30960067);; 内蒙古大学高层次引进人才科研启动基金
【CateGory Index】: Q948.157
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