Pattern of nitrogen integration and its ecological implications in clonal plant Zoysia japonica

摘要：

Clonal integration between ramets of a clonal plant was regarded beneficial for ramet establishment, sustaining stressed ramets, and for resource uptake over large or heterogeneous areas.However, clonal integration may have potential costs, thus, clonal integration may not necessarily exist among physically connected ramets.In natural conditions, Zoysia j aponica usually forms long‐chained and long‐lived stolons in various habitats of the grasslands through the way of vigorous clonal growth.We therefore hypothesized that at least one of the underlying mechanisms lie in that the capacity of clonal integration in Z.j aponica clones must be strong and extensive.Exemplifying nitrogen as an important nutrient element, we carried out an isotopic experiment trying to test the nitrogen integration pattern in Z.j aponica clones, through which try to explain some of the clonal behavioral performances of Z.j aponica.

关键词： nitrogen clonal integration Zoysia j aponica isotope

作者: Dezhi Li Changai Wang

作者单位: Department of Environmental Science,East China Normal University,3663,Zhongshan Rd(N ).200062 Shanghai,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）