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生态学杂志 ›› 2003, Vol. ›› Issue (5): 1-5.

• 研究报告 •    下一篇

长白山北坡植物群落相异性及其海拔梯度变化

于德永1, 郝占庆1, 姬兰柱1, 李扬2, 熊在平1, 叶吉1   

  1. 1. 中国科学院沈阳应用生态研究所, 沈阳, 110016;
    2. 长白山国家保护区管理局, 安图, 133613
  • 收稿日期:2002-05-16 修回日期:2002-01-06 出版日期:2003-05-10
  • 基金资助:
    中国科学院创新项目(KZCX2-406);中国科学院长白山站资助项目

Dissimilarity of plant communities with changes in altitudes on the northern slope of Changbai Mountain

YU Deyong1, HAO Zhanqing1, JI Lanzhu1, LI Yang2, XIONG Zaiping1, YIE Ji 1   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Changbai Mountain National Nature Preserve, Antu 133613, China
  • Received:2002-05-16 Revised:2002-01-06 Online:2003-05-10

摘要: 在长白山北坡,从海拔700~2600m,每隔100m设置一个样地.运用群落多样性指数,分析了在不同海拔,两个群落之间,不同取样面积之间的差异性.结果表明,当取样面积超过16 m2时,在不同取样面积之间,群落之间的差异性表现出相同的规律性,群落差异性指数出现在海拔700~800,1000~1 100,1 700~1 800m,这正是不同植被类型的分界点.群落相似性指数随着取样面积的增加呈线性增加.随着海拔差的增加,群落相似性指数增加率也是不同的.

关键词: 异丙甲草胺, 金都尔, 过氧化氢酶, 手性农药, 土壤微生物

Abstract: From altitude of 700m to 2600m on the northern slope of Changbai Mountain, twenty plots were investigated with an interval of 100 m in altitude.With community dissimilarity index, the dissimilarity among sampling plots at different altitudes was analyzed. The results indicated that dissimilarity between communities showed the same law under different sampling areas when it was over 16m2. Several summit values of community dissimilarity index at the altitudes between 700~800m, 1000~1100,1700~1800 and 1900~2000m were exactly the boundary of different vegetation types. The average value of community dissimilarity index linearly decreased with the increasng sampling areas. Dissimilarity Index between communities varied with the altitude difference. When sampling area was 1m2 or 4m2, Communities dissimilarity index was close to 1 as the altitude difference was over 800m; so was the case when the sampling area was over 16m2 as altitude difference was over 1200m. The rate of community dissimilarity index increased with the increasing the altitude difference.

Key words: Metolachlor, S-Metolachlor (Dual Gold), Chiral pesticide, Catalase activity, Soil microorganisms

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