Water use by dominant species in grazed and intact grassland ecosystems of Inner Mongolia,China

摘要：

Water is the most limiting factor for plant growth in arid and semi‐arid grasslands.The water use of plant is sensitive to the degradation of grassland by heavy grazing.The hydrogen isotope ratios (δD) and leaf water potentials have widely been used to evaluate water sources of plants.The objectives of our study is to address if the dominant species differ in water use resulting from either winter or summer precipitation in relation to grazing among seasons and years and if the grazing‐ induced changes in water use of plant species explain the community structure shift.

关键词： Inner Mongolia steppe grazing plant species composition hydrogen isotope winter moisture

作者: Hao Yang Yongfei Bai Karl Auerswald Xingguo Han

作者单位: Laboratory of Quantitative Vegetation Ecology,Institute of Botany,Chinese Academy of Sciences,Beijin Technische Universitat München,Lehrstuhlfür Grünlandlehre,A m Hochanger 1,D-85350 Freising-Weihenste

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）