title: [Ecological adaptability of Pennisetum centrasiaticum clones on farmland-sand dune ecotone of Keerqin sandy land].
abstract: The individual growth, morphology and population biomass of Pennisetum centrasiaticum clones at two different habitats of farmland-sand dune ecotone on Keerqin sandy land of Inner Mongolia were compared in this study. P. centrasiaticum clones had significant morphological plasticity and different biomass distribution pattern at different habitats. Compared with P. centrasiaticum clones on semi-fixed sand dunes, those on farmland-sand dune transitive zone had a greater leaf elongation, longer rhizomes and internodes, more adventitious buds, larger amount of biomass, and deeper distribution of underground biomass, which were closely associated with the loose texture of the upper soil and the rather favorable water condition of the lower soil. It is believed that the population can well adapt itself to the farmland-sand dune ecotone habitats, and thus, play an important role in fixing mobile sand in succession of arenaceous vegetation.
authors.affiliation: College of Life Sciences, Nankai University, Tianjin 300071. shipingchen@263.net
authors.forename: Shiping
authors.initials: S
authors.lastname: Chen
authors.forename: Yubao
authors.initials: Y
authors.lastname: Gao
authors.forename: Anzhi
authors.initials: A
authors.lastname: Ren
authors.forename: Yu
authors.initials: Y
authors.lastname: Liang
authors.forename: Shuang
authors.initials: S
authors.lastname: Liu
authors.forename: Ning
authors.initials: N
authors.lastname: Liu
mesh_terms: D000220:Adaptation, Biological; D000383:Agriculture; D002681:China; D004463:Ecology; D006109:Poaceae / Q000502:physiology*; D012987:Soil
chemical_list: D012987:Soil