Short term variations in the leaf area index,tiller density and botanical composition of the grassland in Inner Mongolia as affected by light to very heavy grazing intensities

摘要：

The process of vegetation degradation induced by overgrazing is an important issue to determine grassland sustainable utilization and optimum grazing intensity.Leaf area index ( LAI),tiller density and botanical composition are hypothesized to be susceptible to grazing intensity and helpful to understand the vegetation degradation dynamics.Therefore the field observation of these 3 measurements was started from the beginning of the grazing experiment established in 2005.Here we present the results from the first two years (2005&2006).

关键词： Leaf area index tiller density botanical composition grazing

作者: Wan H.,Schonbach P.,Gierus M.,Schiborra A.,Bai Y.,Taube

作者单位: Institute of Crop Science and Plant Breeding-Grassland and Forage Science/Organic Agriculture-CAU Ki Institute of Botany,the Chinese Academy of Sciences,Beijing 100093,China

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）