北京大学学报（自然科学版）2017，Vol.53Issue(3)：545-554,10.DOI:10.13209/j.0479-8023.2017.061
京津冀山地有刺灌木分布格局及其影响因子
Distribution Pattern and Its Impact Factors of Thorny Shrubs in Mountains of the Beijing-Tianjin-Hebei Region
摘要
Abstract
To analyze the distribution pattern of thorny shrubs and its impact factors, 460 sample sites were collected in mountains of the Beijing-Tianjin-Hebei region. Results showed that about 60% of sample sites had thorny shrubs, which were mainly the shrub community dominated by Vitex negundo var.heterophylla. In a small number of sample sites, thorny shrubs even became the dominant species. Twenty-four thorny shrub species were mainly from the families Rhamnaceae, Rosaceae and Leguminosae. The most common three species (Ziziphus jujuba,Rhamnus parvifolia and Caragana rosea) are mainly distributed on the gentle sunny and half-sunny slopes in the hilly area with elevation lower than 600 m a.s.l.. Quantitative analysis also showed that light condition and drought were limiting factors for growth of thorny shrubs (especially Ziziphus jujuba). Affected by climate, topography, and community factors together, thorny shrubs can be distributed under different habitats in mountains of the Beijing-Tianjin-Hebei region.关键词
京津冀山地/有刺灌木/分布格局/地形/气候Key words
mountains of the Beijing-Tianjin-Hebei region/thorny shrub/distribution pattern/topography/climate分类
生物科学引用本文复制引用
王秋懿,郭伟超,王韬,郝倩,许重阳,柳絮,韩玥,邱爽,刘鸿雁..京津冀山地有刺灌木分布格局及其影响因子[J].北京大学学报（自然科学版）,2017,53(3):545-554,10.基金项目
科学技术部基础性工作专项(2011FY110300)资助 （2011FY110300）
