干旱区生态环境知识资源中心(Arid): 哈拉湖流域表土花粉与植被关系研究

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	哈拉湖流域表土花粉与植被关系研究
其他题名	Relationship between Surface Pollen and Vegetation in Hala Lake Area
	盛淑蓉; 魏海成; 山发寿; 袁秦; 秦占杰
来源期刊	盐湖研究
ISSN	1008-858X
出版年	2014
卷号	22 期号:2 页码:20-25,55
中文摘要	哈拉湖位于青海省境内祁连山系西部,属于高山内陆湖泊。对哈拉湖域进行了植被样方调查及表土、湖底表层沉积物花粉分析,结果显示该流域表土花粉组合能较好地反映样方植被群落特征,高寒荒漠草原植被样点花粉组合以蒿属、菊科、藜科花粉为主,高寒草甸样点莎草科花粉占绝对优势。 R 值分析结果显示藜科、莎草科和蒿属花粉具有超代表性,而禾本科、菊科、豆科花粉具有低代表性特征。湖底表层沉积物中的花粉分析结果显示湖泊沉积物花粉受控于湖泊近源植被,花粉组合能较好反映湖区整体植被特征,花粉分布具有均一性。沉积物表层花粉组合以蒿属、藜科为主,双气囊型花粉如云杉属、松属等少量出现,表明河流和风力是哈拉湖沉积物花粉输入的主要动力。该研究为在哈拉湖地区利用花粉重建古植被提供了重要的参考依据。
英文摘要	Hala Lake is an intermontane lake and located in the Qilian Mountains,Qinghai Province.We carried out vegetational investigation and surface pollen analysis in the study area.The result shows that the major vegetation communities in Hala Lake area can be well differentiated by their surface pollen assemblages.The surface pollen assemblages in Alpine desert steppe vegetation samples were dominated by Artemisia,Chenopodiaceae and Asteraceae while Cyperaceae pollen dominated in Alpine meadow samples. R values indicate that Chenopodiaceae,Cyperaceae and Artemisia pollen relatively show over-representation,while Poaceae,Asteraceae,Fabaceae have under-representation.Hala Lake surface sediment pollen analysis indicates that pollen in the lake mainly imported from the nearby vegetation zones,and pollen assemblages can well reflect vegetation communities around Hala Lake.The pollen assemblages in the different samples collected from the Lake tends to be similar.Chenopodiaceae and Artemisia dominated in the lake sediment surface samples,and Picea and Pinus appeared in low percentage,indicating rivers and wind are the main factors of the pollen input to the lake.This study provides theoretical bases for quantitative reconstructions of palaeoclimate and palaeovegetation based on fossil pollen spectra from lake sediments in the Hala Lake and surrounding area.
中文关键词	哈拉湖 ; 表土花粉 ; 湖底表层沉积物
英文关键词	Hala lake Surface pollen Lake surface sediment
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5202043
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231957
作者单位	中国科学院青海盐湖研究所, 西宁, 青海 810008, 中国
推荐引用方式 GB/T 7714	盛淑蓉,魏海成,山发寿,等. 哈拉湖流域表土花粉与植被关系研究[J]. 中国科学院西北生态环境资源研究院,2014,22(2):20-25,55.
APA	盛淑蓉,魏海成,山发寿,袁秦,&秦占杰.(2014).哈拉湖流域表土花粉与植被关系研究.盐湖研究,22(2),20-25,55.
MLA	盛淑蓉,et al."哈拉湖流域表土花粉与植被关系研究".盐湖研究 22.2(2014):20-25,55.