地理科学进展 ›› 2007, Vol. 26 ›› Issue (1): 44-55.doi: 10.11820/dlkxjz.2007.01.005

• 本刊特稿 • 上一篇    下一篇

高山树线交错带的景观格局与生态过程

杨振林1,2, 石培礼1   

  1. 1. 中国科学院地理科学与资源研究所, 北京100101|
    2. 中国科学院研究生院, 北京100039
  • 收稿日期:2006-09-01 修回日期:2006-12-01 出版日期:2007-02-20 发布日期:2007-02-20
  • 通讯作者: 石培礼(1969- ), 男, 重庆人, 副研究员, 主要从事高原及高山生态学研究. Email: shipl@igsnrr.ac.cn E-mail:shipl@igsnrr.ac.cn
  • 作者简介:杨振林(1983-), 男, 江西玉山县人, 硕士, 主要从事生态学研究。E- mail:zhenlinyoung@gmail.com
  • 基金资助:

    国家自然科学基金项目(30370257)和中国科学院地理科学与资源研究所创新前沿项目(CXIOGC05-01)资助.

The Ecological Processes and Landscape Patterns at Alpine Tr eeline Ecotone

YANG Zhenlin1,2, SHI Peili1   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of sciences, Beijing 100101, China|
    2. Graduate University of the Chinese Academy of Sciences, Beijing 10039, China
  • Received:2006-09-01 Revised:2006-12-01 Online:2007-02-20 Published:2007-02-20

摘要:

由于对气候变化的敏感性, 近年来高山树线交错带成为全球变化研究中的热点问题。高 山树线交错带所指示的是一个复杂生态系统的特征, 反映出了由低处植被向高山植被的转化, 其 景观格局是综合了种子定居, 树木生长以及树木繁殖等多个树木生态过程和特定高山环境下的 地理特征格局的适应结果。一方面, 树木通过自身生理生态学上的调整对高山极端环境进行适 应。一方面, 高山特定地理环境特征对树线的景观格局进行影响, 因而高山树线交错带成为研究 景观格局- 生态过程相互关系的一个重要载体。通过运用3S 技术, 可以将高山树线交错带研究中 的树线景观结构和生理生态过程结合在一起, 并验证在其景观格局形成过程中地理特征和人为 因子的相对重要性。

关键词: 景观格局, 全球变化, 生态过程, 生态交错区, 树线

Abstract:

The Alpine Treeline Ecotone (ATE) indicates the characteristics of the complicated ecosystems in the mountainous environment. It can also reflect the transition of the lower vegetations to the alpine vegetations. The location of the treeline is the result of a combination of a great number of unfavorable conditions for tree regeneration, seedling establishment and tree growth. For the sensitivity of the ATE to the climate change, ATE has become a hot topic in the alpine environmental and global change research. Recently, the landscape patterns and ecological processes of the ATE are mainly two aspects of the researches in the ATE. The researches majored in the landscape patterns of the ATE focus mainly on the landscape pattern of the ATE. And the researches majored in ecological processes of the ATE focus mainly on the formation mechanisms of the treeline. The development of GIS enhances the integration of the pattern and process of the ATE, and provides a useful tool to evaluate the relative importance of the biotic and abiotic factors in the research of the ATE.

Key words: global change, landscape pattern, treeline ecotone ecological process

中图分类号: 

  • P935.1