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  • ISSN 1000-694X
  • 双月刊 创刊于1981年
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古尔班通古特沙漠沙丘主要灌木的种群数量动态

  • 李功麟 ,
  • 张定海 ,
  • 张志山 ,
  • 胡宜刚 ,
  • 黄磊 ,
  • 路丽宁
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  • 1.甘肃农业大学 理学院 数量生物研究所,甘肃 兰州 730070
    2.中国科学院西北生态环境资源研究院 沙坡头沙漠研究试验站,甘肃 兰州 730000
张定海(E-mail: zhangdh@gsau.edu.cn
李功麟(1995—),男,山东聊城人,硕士研究生,主要从事应用统计学研究。E-mail: gonglinli1@163.com

收稿日期: 2020-07-16

  修回日期: 2020-09-23

  网络出版日期: 2021-03-26

基金资助

国家自然科学基金项目(41661022);甘肃农业大学盛彤笙创新基金项目(GAU-CX1121);甘肃农业大学学科建设专项基金(GAU-XKJS-2018-144)

Population dynamics of main sand-fixing shrubs in the Gurbantunggut Desert

  • Gonglin Li ,
  • Dinghai Zhang ,
  • Zhishan Zhang ,
  • Yigang Hu ,
  • Lei Huang ,
  • Lining Lu
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  • 1.Center for Quantitative Biology,College of Science,Gansu Agricultural University,Lanzhou 730070,China
    2.Shapotou Desert Research and Experimental Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China

Received date: 2020-07-16

  Revised date: 2020-09-23

  Online published: 2021-03-26

摘要

种群数量动态的研究是认识种群的生存现状及发展动态的前提。通过对古尔班通古特沙漠固定沙丘、半固定沙丘和流动沙丘上主要固沙灌木的样地调查,分析了固沙灌木的年龄结构,建立了3种沙丘上固沙灌木的静态生命表和存活曲线。结果表明:(1)固沙灌木的存活个体数呈逐级递减的趋势,幼龄个体占有很高的比例;固定沙丘上梭梭(Haloxylon ammodendron)呈现Ⅰ型存活曲线,种群退化,白梭梭(Haloxylon persicum)呈现Ⅱ型存活曲线,种群稳定;(2)半固定沙丘上白梭梭呈Ⅱ型存活曲线,种群相对稳定;沙拐枣(Calligonum mongolicum)和油蒿(Artemisia ordosica)均呈现Ⅰ型存活曲线,种群处于退化状态;(3)流动沙丘上沙拐枣呈现Ⅲ型存活曲线,种群有较大的增长潜力,白梭梭呈现出Ⅱ型存活曲线,种群相对稳定,油蒿呈现出Ⅰ型存活曲线,种群处于不稳定的退化状态。

本文引用格式

李功麟 , 张定海 , 张志山 , 胡宜刚 , 黄磊 , 路丽宁 . 古尔班通古特沙漠沙丘主要灌木的种群数量动态[J]. 中国沙漠, 2021 , 41(2) : 129 -137 . DOI: 10.7522/j.issn.1000-694X.2020.00103

Abstract

The study of population dynamics is a prerequisite for understanding the current situation of population survival and development dynamics. In this paper, the age structure of sand-fixing shrubs was analyzed and the static life table and survival curve were established based on our survey of the sand-fixing shrubs under three types of sand dunes (i.e. the fixed sand dunes, the semi-fixed sand dunes and the mobile sand dunes) in the Gurbantunggut Desert. We developed the following conclusions: (1) The survival number of sand-fixing shrubs showed a gradual decrease with age-class and high proportion of sand-fixing shrubs population is young individuals in three habitats. (2) On fixed sand dunes: the population survival curves of Haloxylon ammoolenelron was close to Deevey-Ⅰ type which indicated that its population was degonerating; Haloxylon persicum population was close to Deevey-Ⅱ type survival curve, the population was in a dynamic and stable state. (3) On semi-fixed sand dunes: H.persicum belong to Deevey-Ⅱ type survival curve, its population in a relatively stable state; Calligonum mongolicum and Artemesia ordosica all belong to Deevey-Ⅰ type survival curve, which shows that these populations were in a degraded state. (4) On mobile sand dunes: C.mongolicum population presented Deevey-Ⅲ type survival curve, which had great growth potential; H.persicum population presented Deevey-Ⅱ type survival curve, which shows that the population was in a relatively stable state; A.ordosica population presented Deevey-Ⅰ type survival curve, which indicates that the populations was in unstable state of degradation.

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