地理科学进展 ›› 2005, Vol. 24 ›› Issue (5): 1-12.doi: 10.11820/dlkxjz.2005.05.001

• 环境与生态 •    下一篇

青藏高原湖泊沉积与环境演变研究:现状与展望

王君波,朱立平   

  1. 中国科学院青藏高原研究所, 北京 100085
  • 收稿日期:2005-02-01 修回日期:2005-07-01 出版日期:2005-09-25 发布日期:2005-09-25
  • 作者简介:王君波(1977-),男,博士后,研究方向为湖泊沉积与环境演变。E-mail: wangjb@igsnrr.ac.cn
  • 基金资助:

    国家自然科学基金重点项目(40331006)、中国科学院知识创新工程项目(KZCX3-SW-339)资助。

Environmental Change Reflected by Lake Eediments on Tibetan Plateau: Progress and Prospect

WANG Junbo, ZHU Liping   

  1. Institute of Tibetan Plateau Research, CAS, Beijing 100085, China
  • Received:2005-02-01 Revised:2005-07-01 Online:2005-09-25 Published:2005-09-25

摘要:

从空间尺度、不同时间尺度、重大气候环境变化事件、与其他研究结果的对比以及代用指标与气候要素的定量关系研究等几个方面总结了近十余年来青藏高原湖泊沉积与环境演变研究的主要成果。目前在高原上开展的湖泊沉积与环境演变研究主要分布在三个较为集中的地区:高原东北边缘区、高原西部西昆仑山湖泊群和高原中南部湖泊群。已有的湖泊沉积记录主要是以中长时间尺度的研究为主,而短时间尺度高分辨率的研究稍显不足。与其他地区全球变化研究结果的对比表明,湖泊沉积所反映的高原气候环境变化既具有全球性,又具有区域性的特征。湖泊沉积重建的环境序列的定量化研究仍处于探索阶段。由于湖泊沉积的环境代用指标存在着相对多解性,因此在实际研究中多学科交叉、多指标分析的方法是必需的。当前和今后需要深入开展环境代用指标与气候要素之间定量关系的研究,进一步提高沉积物定年的精确性,发现新的更为敏感的环境代用指标,不断完善多学科多环境代用指标的综合分析,并注重填补不同区域不同时间尺度的研究空白,加强高原上不同区域之间的对比研究。

关键词: 湖泊沉积, 环境演变, 青藏高原, 研究进展

Abstract:

For more than ten years, many studies related to the lake sediments and environmental changes on Tibetan Plateau have been carried out. The review of these studies is made in this paper with the viewpoints of different spatial scale, temporal scale, main events of climatic and environmental change, comparisons with other studies, and the quantitative reconstruction of environmental sequences. Presently, these studies are mainly focused on three regions: northeast edge region of the Plateau, the group lakes in the west Kunlun Mountains and middle-southern Tibet region. These sequences are mainly long-term in temporal scale, but it is deficient for the studies with short-term scale and high-resolution. From the comparison among these study results and those in other areas, both regional and global characters are reflected in the environmental changes derived from the lake sediments on the Plateau. However, quantitative reconstructions of environmental sequences from lake sediments are still in the exploring status. Because some environmental proxies have multi-significance, it is necessary to develop a multidisciplinary lake sediment study on Tibetan plateau. Overall, the following aspects must be emphasized in current and future studies: deepening the quantitative study between proxies and climatic factors, improving the accuracy of sediments dating, discovering new sensitive proxies, enhancing integrated analyses among multidisciplinary, filling up the blank areas with different temporal scale study and strengthening the comparison study between different areas on the Plateau.

Key words: environmental changes, lake sediments, study progress, Tibetan Plateau