1.College of Soil and Water Conservation,Beijing Forestry University,Chinese Training Centre on Combating Desertification,100083,Beijing;2.Ningxia Forest Inventory and Planning Institute,750001,Yinchuan: China
Abstract：The vegetation features and biomass of sandy rangeland in semi-arid area of Yanchi County,Ningxia were studied by means of plot investigation methods since 1991.Three treatments were respectively old closed land,new closed land and contrast land of different periods.The results showed that community composition had varied regularly after enclosure and the plant diversity of the grassland community had increased as the enclosing time extended;The vegetation coverage,mean height and biomass in the three areas have no significant differences.The community in old enclosed land was dominated by perennials;In the view of palatability of plant composition,community of new enclosed has higher palatability than old enclosed,which proves partly that long-term enclosure can not increase grazing values for rangeland in semi-arid area.
沈彦1；张克斌1；杜林峰1；李瑞1；路银山2. 封育措施在宁夏盐池草地植被恢复中的作用[J]. 中国水土保持科学, 2007, 5(3): 90-93.
CHEN Pan-；Zhang-Ke-Bin-；Du-Lin-Feng-；Li-Rui-；Lu-Yin-Shan. Effects of land enclosure on vegetations recovery in grassland in Yanchi County,Ningxia. SSWCC, 2007, 5(3): 90-93.
2007, Vol. 5 
