文冠果地理分布和生物生态学特性  

Distribution and Bio-ecological Characteristics of Xanthoceras sorbifolia

作　　者：万群芳[1,2] 何景峰[2] 张文辉[2] 

机构地区：[1]西北农林科技大学生命科学学院,陕西杨凌712100 [2]西北农林科技大学西部环境与生态教育部重点实验室,陕西杨凌712100

出　　处：《西北农业学报》2010年第9期179-185,共7页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：中科院科学院西部行动计划项目(KZCX2-XB2-05);国家十一五科技支撑课题(2006BAD09B03);杜胜百人计划项目(KZCX2-YW-BR-02)资助

摘　　要：通过野外踏查和室内分析相结合的方法对文冠果（Xanthoceras sorbifolia）的种群地理分布、个体生长规律以及有性和无性生殖规律进行了研究。结果显示,文冠果分布较为广泛,其中黄土高原是文冠果分布最为集中的地区;在适宜的环境条件下,文冠果1~3 a生幼苗随年龄的增长其根的生物量占总生物量的比例逐渐下降;不同生境类型下有性生殖特性有差别;不同直径级别的伐桩和断根萌发幼苗的能力随着级别的增加而增强。Field investigation and interior experiment were conducted to study the geographical distribution and habitat type and the discipline of sexual and asexual reproduction of Xanthoceras sorbifolia,which provides the basis for further study of Xanthoceras sorbifolia on the division of plantation dynamics,high yield cultivation and population.The results revealed that Xanthoceras sorbifolia distributed was widely and the loess plateau was the most centralized distribution area of Xanthoceras sorbifolia.Under the suitable conditions,the proportion of the biomass of root of Xanthoceras sorbifolia grown for 1-3 years decreased gradually as aging.The sexual reproduction characteristics in different habitat types were distinct.The germination ability of seedlings was distinct in different grades of diameter of stump and broken root,which was enhanced with the increase of its diameter.

关 键 词：文冠果种群 地理分布 个体生长 生殖特性 

分 类 号：S565.9[农业科学—作物学]