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中国沙漠  1995, Vol. 15 Issue (1): 37-41    
论文     
克里雅河上游流域黄土中孢粉组合与环境
邵亚军, 李保生
中国科学院兰州沙漠研究所, 兰州 730000
SPORO-POLLEN ASSEMBLAGE IN THE LOESS OF UPPER REACH OF THE KERIYA RIVER AND ITS ENVIRONMENT
Shao Yajun, Li Baosheng
Institute of Desert Research, Academia Sinica, Lanzhou, 730000
 全文: PDF(356 KB)  
摘要: 对克里雅河上游流域末次冰期以来形成的两个黄土剖面13块样品进行了孢粉分析。分析结果表明, 末次冰期以来该区黄土堆积的植被类型主要是以耐旱的麻黄(Ephedra)、藜(Chenopodiaceae)、蒿(Artemisia)等草本植物为主, 属荒漠草原类型。但期间也出现过具有一定含量的云杉(Picea)、冷杉(Abies)、松属(Pinus)等针叶树花粉, 显示出疏林草原环境。由此表明, 从那时以来的黄土堆积过程中, 在总的持续干旱的荒漠草原环境下也存在相对的干湿波动。
关键词: 克里雅河上游流域黄土孢子花粉荒漠草原植被干旱环境    
Abstract: The sporo-pollens have been analysed in two Loess sections located respectively at 3 150m and 4250 m a. s.l.in the upper reach of the Keriya River. From this it has demonstrated that since the last glacial age the vegetation in the area have been dominated by the desert-steppe herbs composed of drought-resistant Ephedra,chenopodiaceae and Artemisea etc.However,there were also a certain amount of Picea,Abies and Pinus in two sections which showed a sparse-tree steppe environment.These suggest that there were relative dry and humid fluctuations occurred in the persistent arid desert-steppe environment during the processes of loess formation.
Key words: Upper reach of Keriya River    Loess sporo-pollens    Desert-steppe vegetation
收稿日期: 1993-06-16
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引用本文:

邵亚军, 李保生. 克里雅河上游流域黄土中孢粉组合与环境[J]. 中国沙漠, 1995, 15(1): 37-41.

Shao Yajun, Li Baosheng. SPORO-POLLEN ASSEMBLAGE IN THE LOESS OF UPPER REACH OF THE KERIYA RIVER AND ITS ENVIRONMENT. JOURNAL OF DESERT RESEARCH, 1995, 15(1): 37-41.

链接本文:

http://119.78.100.150:82/zgsm/CN/        http://119.78.100.150:82/zgsm/CN/Y1995/V15/I1/37

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