干旱区生态环境知识资源中心(Arid): 青藏高原东北部表土花粉组合与植被和气候的关系

Arid

	青藏高原东北部表土花粉组合与植被和气候的关系
其他题名	CHARACTERISTICS OF POLLEN ASSEMBLAGES OF SURFACE SAMPLES FROM THE NORTH-EASTERN TIBETAN PLATEAU AND THEIR IMPLICATIONS FOR VEGETATION AND CLIMATE
	魏海成 1; 马海州 2; 郑卓 3; 潘安定 4; 黄康有 3; 王志英 4; 翟俊 1
来源期刊	海洋地质与第四纪地质
ISSN	0256-1492
出版年	2010
卷号	30 期号:4 页码:187-192
中文摘要	对青藏高原东北部地区65样点进行了植被调查与表土花粉分析,样品取自于6种类型的植被带内,包括森林、高山灌丛、高山草甸、温带草原、荒漠草原、灌木半灌木荒漠. 结果显示:青藏高原东北部地区花粉组合能较好地反映主要的植被群落特征. 蒿藜比值(A/C)对该区域多年平均降水量(MAP)十分敏感,A/C值从高山灌丛草甸、温带草原到荒漠灌丛带呈逐渐降低趋势. DCA排序分析结果显示:该地区表土花粉能很好地反映相应植被群落特征,表土花粉分布与多年平均降水量(MAP)呈显著相关,与7月平均温度呈负相关关系. 该研究为青海湖及柴达木盆地湖泊沉积物花粉分析定量重建古气候、古环境提供了很好的理论基础
英文摘要	65soil samples from north-eastern Tibetan Plateau, northwest China(94.17°E~102.37°E,35.72 N~38.05°N), were analyzed for pollen content. The pollen belong to six main vegetation types:forest, alpine shrubs, alpine meadows, temperate steppes, steppe deserts, shrub and semi-shrub deserts. The aim of this study is to provide new data on the modern pollen rain in the semi-arid to arid areas of northwest China. These data were interpreted by using diagrams of pollen percentages and numerical analyses. Our esult shows that the present major vegetation communities in Qinghai area can be well defined by their pollen assemblages. Artemisia/Chenopodiaceae(A/C)ratio is sensitive to mean annual precipitation (MAP).It decreases from the alpine shrub and alpine meadow zone, through the temperate steppe,to the shrub and semi-shrub desert zone. Detrended correspondence analyses indicate that pollen assemblages have obvious relationship with the mean annual precipitation(MAP)and the July mean annual temperature (July Temp). This study also provides the theoretical basis for quantitative reconstructions of palaeoclimate and palaeovegetation based on fossil pollen spectra from the lacustrine sediments of the Qinghai Lake and Qaidam basin
中文关键词	花粉组合 ; DCA分析 ; A/C值 ; 青藏高原东北部地区
英文关键词	Pollen assemblage DCA analysis A/C ratio North-eastern Tibetan Plateau
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOLOGY
WOS研究方向	Geology
CSCD记录号	CSCD:3982854
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/2XILL650/225279
作者单位	1.中国科学院研究生院, 中国科学院盐湖资源与化学重点实验室, 北京 100049, 中国; 2.中国科学院青海盐湖研究所, 中国科学院盐湖资源与化学重点实验室, 西宁, 青海 810008, 中国; 3.中山大学地球科学系, 广州, 广东 510270, 中国; 4.广州大学地理科学学院, 广州, 广东 510006, 中国
推荐引用方式 GB/T 7714	魏海成,马海州,郑卓,等. 青藏高原东北部表土花粉组合与植被和气候的关系[J]. 中国科学院西北生态环境资源研究院,2010,30(4):187-192.
APA	魏海成.,马海州.,郑卓.,潘安定.,黄康有.,...&翟俊.(2010).青藏高原东北部表土花粉组合与植被和气候的关系.海洋地质与第四纪地质,30(4),187-192.
MLA	魏海成,et al."青藏高原东北部表土花粉组合与植被和气候的关系".海洋地质与第四纪地质 30.4(2010):187-192.