中国地理科学(英文版) ›› 2010, Vol. 20 ›› Issue (6): 506-512.doi: 10.1007/s11769-010-0424-2

• 论文 • 上一篇    下一篇

Morphological Characteristics and Environmental Implications of Phytoliths in Topsoils from Different Vegetation Zones on Northern Slope of Changbai Mountains,China

QIAO Zhihe1,2, JIE Dongmei1, LIU Hongmei1, GE Yong1, ZHANG Hongyan1   

  1. 1. College of Urban and Environmental Science, Northeast Normal University, Changchun 130024, China;
    2. Daqing Normal University, Daqing 163001, China
  • 收稿日期:2010-02-11 修回日期:2010-06-12 出版日期:2010-11-11 发布日期:2010-11-19
  • 通讯作者: JIE Dongmei.E-mail:jiedongmei@nenu.edu.cn E-mail:jiedongmei@nenu.edu.cn
  • 基金资助:

    Under the auspices of National Natural Science Foundation of China (No 40971116);Major State Basic Research Development Program of China (No 2009CB426305);Technology Innovation Project of Northeast Normal University in Eleventh Five-Year Plan Period (No NENU-Stb07002)

Morphological Characteristics and Environmental Implications of Phytoliths in Topsoils from Different Vegetation Zones on Northern Slope of Changbai Mountains,China

QIAO Zhihe1,2, JIE Dongmei1, LIU Hongmei1, GE Yong1, ZHANG Hongyan1   

  1. 1. College of Urban and Environmental Science, Northeast Normal University, Changchun 130024, China;
    2. Daqing Normal University, Daqing 163001, China
  • Received:2010-02-11 Revised:2010-06-12 Online:2010-11-11 Published:2010-11-19

摘要:

The Changbai Mountains,located in the temperate monsoon climate zone of East Asia,is an ideal loca-tion for the research on timberline response to global changes.In this study,the topsoils were collected from different vertical vegetation zones on the northern slope of the Changbai Mountains,Northeast China in August 2009,and phytoliths in the soil samples were extracted by using wet oxidation method and identified with Motic 2.0 microscope in laboratory.The results show that phytoliths are abundant in the topsoils of the study area.The herbal phytoliths are primarily composed of elongated,tooth-shaped,point-shaped and hat-shaped phytoliths,as well as a small amount of fan-shaped and square-shaped ones.The elongated,tooth-shaped,point-shaped and hat-shaped phytoliths are representative of cold climate,while fan-shaped and square-shaped ones are representative of warm and humid climate.In the conifer broadleaved mixed forest zone,coniferous forest zone and broadleaf forest zone,there are close correlations between vegetation and woody phytoliths in the topsoils,indicating that the woody plants of a region can be reconstructed from the woody phytolith assemblages in the topsoils.Meanwhile,the topsoil phytolith assemblages can also be used to reconstruct the understory herbs effectively.The phytolith assemblages in the topsoils of the forest community and herbal community differ significantly,which can help indicate the historical location of the timberline.

关键词: topsoil phytolith, timberline, environmental implication, vertical vegetation zones, Changbai Mountains

Abstract:

The Changbai Mountains,located in the temperate monsoon climate zone of East Asia,is an ideal loca-tion for the research on timberline response to global changes.In this study,the topsoils were collected from different vertical vegetation zones on the northern slope of the Changbai Mountains,Northeast China in August 2009,and phytoliths in the soil samples were extracted by using wet oxidation method and identified with Motic 2.0 microscope in laboratory.The results show that phytoliths are abundant in the topsoils of the study area.The herbal phytoliths are primarily composed of elongated,tooth-shaped,point-shaped and hat-shaped phytoliths,as well as a small amount of fan-shaped and square-shaped ones.The elongated,tooth-shaped,point-shaped and hat-shaped phytoliths are representative of cold climate,while fan-shaped and square-shaped ones are representative of warm and humid climate.In the conifer broadleaved mixed forest zone,coniferous forest zone and broadleaf forest zone,there are close correlations between vegetation and woody phytoliths in the topsoils,indicating that the woody plants of a region can be reconstructed from the woody phytolith assemblages in the topsoils.Meanwhile,the topsoil phytolith assemblages can also be used to reconstruct the understory herbs effectively.The phytolith assemblages in the topsoils of the forest community and herbal community differ significantly,which can help indicate the historical location of the timberline.

Key words: topsoil phytolith, timberline, environmental implication, vertical vegetation zones, Changbai Mountains