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高寒草甸弃耕地内鼠类的数量配置及对植被演替的影响

肖云峰, 梁杰荣, 沙渠   

  1. 中国科学院西北高原生物研究所
  • 出版日期:2011-11-22 发布日期:2011-11-22

THE QUANTITY DISPOSITION OF RODENTS IN ABONDANT FIELD AND ITS EFFECTS ON VEGETATION SUCCESSION IN ALPINE MEADOW

XIAO Yunfeng, LIANG Jicrong, SHA Qu   

  1. Northwest Plateau Institute of Biology, Academia Sinica
  • Online:2011-11-22 Published:2011-11-22

摘要: 1958—1960年间,青海省开垦了部分草场,其中一部分因高寒而弃耕。近年来,建立人工饲料基地,使大部分弃耕地的草场生产力得到恢复。但尚有少数地区,由于鼠害及其他原因,植被至今尚未恢复。 关于鼠类对草原植被的影响,国内外动植物科学工作者已做了大量的研究工作(张荣祖、张洁,1963;姚崇勇、王庆瑞,1963、1964;1964;Betzliand Pitelka,1970;梁杰荣、萧运峰,1978)。但有关弃耕地内鼠类和植物群落的演替关系和相互影响方面,国内仅见夏武平、钟文勤(1966)有过报道。国外虽有不少类似的工作(Pearson,1959;Карасева, 1961;Афанасъев, 1963),但对青藏高原高寒草甸地区,还未见有人研究过。因此,我们于1974年8—9月,在青海省门源县盘坡地区的弃耕地进行了鼠类数量配置与植物群落演替及其相互关系的调查。

Abstract: 1. This work was carried out in the alpine meadow region, Menyuan, Qinghai, from August to September 1974.2. Series of vegetation succession in abondant field are:Secondary barela-nd stages→annual and biannual herbosa stages→rhizome and stobon herbosa stages→loose grass stages→crowded grass stages.3. The quantity of the plateau pika on all succession stages increases with the increase of the quantity of the grass; the quantity of the common chenesc zokor decreases with the decrease of rhizome and stolon herbosa.4. The degeneration of vegetation is not only related to rodents pest but also is caused by intensive pasturage.