Dynamics of Leymus chinensis and Hierochloe glabra in grassland plantings within the Songnen Plains of China
Two grasses, Leymus chinensis and Hierochloe glabra are rhizomatous plants distributed broadly within the Songnen Plains of China (Yang et al.,2006;Guo et al.,2004).Because germination rate of seeds is less in L.Chinensis.than H.Glabra there is a successional progression in plantings from H.Glabra to L.Chinensis.The capability of vegetative reproduction is stronger in H.Glabra population than in L.Chinensis population.Therefore L.Chinensis is a late successional grass and H.Glabra is an early successional grass.H.Glabra usually forms many patches of dominant species in the planted grassland at early stage.H.Glabra is then replaced by L.Chinensis with successional progression occurring gradually.Eventually,L.Chinensis would become the dominant species in the community.More compelte understanding of the dynamics of populations of L.Chinensis and H.Glabra could provide an improved understanding for management of these reseeded grasslands.
Leymus chinensis Hierochloe glabra vegetative reproduction population dynamics series progress planting
Fan Guang-zhi Yan Yun-fei
Key Laboratory of Vegetation Ecology,Ministry of Education,Institute of Grassland Science,Northeast Normal University,Renmin Street,5268,Changchun 130024,China.
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）