自然资源学报

自然资源学报 ›› 2002, Vol. 17 ›› Issue (1): 63-70.doi: 10.11849/zrzyxb.2002.01.010

• 论文 • 上一篇    下一篇

从植被演替和抗风性研究包兰线沙坡头段人工植被稳定性

于云江1,2, 林庆功3, 郜永贵3, 丘明新2, 刘家琼2   

  1. 1. 北京师范大学资源科学研究所;
    2. 兰州铁路局中卫固沙林场;
    3. 中国科学院寒区旱区环境与工程研究所沙坡头沙漠试验研究站 环境演变与自然灾害教育部重点试验室,北京100875
  • 收稿日期:2001-06-14 修回日期:2004-08-16 出版日期:2002-02-25 发布日期:2002-02-25
  • 作者简介:于云江(1964～），男，内蒙古乌前旗人，博士研究生，主要从事干旱区资源与生态环境研究。E-mail:yyj@irs.bnu.edu.cn
  • 基金资助:

    中国科学院沙坡头沙漠试验研究站基金;铁道部科研项目;国家重点基础研究项目(2000018600)资助。

Exploring the stability of artificial vegetation at Shapotou section along Baotou-Lanzhou railway:proceeded from succession and wind-resistence capacity of vegetation

YU Yun-jiang1,2, LIN Qin-gong3, GAO Yong-gui3, QIU Ming-xin2, LIU Jia-qiong2   

  1. 1. Key Lab of Environmental chango and Natural Disastor of Ministry of Education, Beijing Normal University,Bejiing 100875, china;
    2. Shapotou Desert Experimental Rosoarc;h Station, Institute of Cold and Arid Regions Environment and Engineering,CAS, Lanzhou 730000, China;
    3. Zhongwoi Sand Control Forestry Center,Lanzhou Railway Bureau, Zhongwoi 751702, China
  • Received:2001-06-14 Revised:2004-08-16 Online:2002-02-25 Published:2002-02-25

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32 | 3

摘要： 运用群落演替与风沙流因子分析相结合的方法论证了群落的稳定性。在沙坡头地区,以油蒿为主的人工群落在长期的自然演替过程中已达到与生境条件相互适应的动态稳定过程。通过沙坡头与周边地区植被演替的比较研究,表明了该地区现有植被正形成(或已形成)偏途顶极序列,该植被在相当长的时间内会稳定存在,这些演替可促使沙坡头地区的人工植被向更为稳定的人工+自然复合生态系统以及自然生态系统方向变化。此外,风洞实验结果显示,沙坡头现有主要植被和地表能够抵抗较大风沙流胁迫,已形成了能够忍耐沙尘暴的生态系统。

关键词: 植被演替, 风沙流, 偏途顶极群落, 稳定性

Abstract: Based on community succession and analysis of sand flow,the stability of com munity was studied.In Shapoptou area,the artificial communities in which Artemisia ordosica communi ty is dominant are adaptable to the habitat environment in long-term natural succession and they are stable.The results of observation and comparative study of vegetation succession in Shapotou and the vicinity showed that existing vegetation communities are evolving towards disclimax and in the future long periods of time Artemisia ordosica community will be stable.These succes-sions can facilitate the evolution of the local artificial vegetation towards more stable artificial natural compound ecosystem and even natural ecosystem.Furthermore,the research result of im-pact of wind flow on plant and earth-surface wind-tunnel experiment result showed that main vegetation and earth-surface of Shapotou at present can resist greater stress from wind flow and the ecosystem that can stand sand-dust storms has been formed.

Key words: vegetation succession, wind flow, disclimax community, stability