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冰川冻土 ›› 2014, Vol. 36 ›› Issue (3): 599-607.doi: 10.7522/j.issn.1000-0240.2014.0071

• 冰冻圈与全球变化 • 上一篇    下一篇

青海共和盆地达连海湖泊流域的表土孢粉研究

李国荣1, 陈英玉1, Maria Velez2, 韩丽蓉1, 蔡遥3, 王涛1   

  1. 1. 青海大学 地质工程系, 青海 西宁 810016;
    2. Department of Geology, University of Regina, Regina SK S4S 0A2, Canada;
    3. 国土资源部 新构造运动与地质灾害重点实验室, 北京 100081
  • 收稿日期:2013-12-25 修回日期:2014-03-21 出版日期:2014-06-25 发布日期:2014-07-16
  • 作者简介:李国荣(1980-),男,青海贵德人,讲师,2007年在青海大学获硕士学位,现主要从事生态边坡工程及其地质灾害防治等方面的教学与研究工作.E-mail:qdliguorong@163.com
  • 基金资助:
    国家自然科学基金项目(41062003);青海大学科研启动基金项目(20100912);青海大学中青年科研基金项目(2011-QGY-10)资助

A study of surface pollen in Dalianhai Lake catchment, Qinghai

LI Guorong1, CHEN Yingyu1, Maria Velez2, HAN Lirong1, CAI Yao3, WANG Tao1   

  1. 1. Department of Geological Engineering of Qinghai University, Xining 810016, China;
    2. Department of Geology, University of Regina, Regina SK S4S 0A2, Canada;
    3. Key Laboratory of Neotectonic Movement and Geohazard, Ministry of Land and Resources, Beijing 100081, China
  • Received:2013-12-25 Revised:2014-03-21 Online:2014-06-25 Published:2014-07-16
  • Contact: 陈英玉,E-mail:xhrm654321@126.com E-mail:xhrm654321@126.com

摘要: 对青海共和盆地内的达连海湖泊流域54个样点进行植被调查及表土花粉分析,研究了植被与表土花粉之间的关系. 结果显示: 表土花粉组合可反映出该区植被的总体特征;达连海湖泊流域花粉沉积来源于整个流域植被,花粉与主要植被类型之间相关性良好,但不能完全反映出群落的建群种、优势种和盖度等. 蒿属和藜科花粉具有超代表性,禾本科表现为低代表性,蒿/藜比具有区域植被生态特点与气候指示意义,在不同的植被区域A/C变化明显;影响达连海湖泊流域表土花粉组合的主要控制因素是风力作用.

关键词: 达连海, 表土孢粉, 花粉来源, A/C值

Abstract: In order to investigate the relationship between the surface-pollen and modern vegetation, total of 54 surface-pollen samples from Dalianhai Lake catchment, a sensitive semi-arid zone between the Asian summer monsoon-controlled and the westerly-influenced areas in Northwest China, have been analyzed. The result shows that the corresponding relationship between the pollen assemblages of surface samples and the main vegetation types is better. However, pollen assemblages of surface samples cannot reflect completely the community features of the main, dominant genera and coverage etc.; Artemisia and Chenopodiaceous is over-represented, while Gramineae is under-represented. The A/C (ratio of Artemisia to Chenopodiaceous) changes obviously with different vegetation areas, having regional vegetation ecological characteristics and climate denotative significance. The chief factor controlling the surface-pollen assemblages is wind.

Key words: Dalianhai Lake, surface-pollen, pollen source, ratio of Artemisia to Chenopodiaceous

中图分类号: 

  • Q914.84/Q944.571