Vegetational and climatic variations during the past 3100 yearsin southern India: evidence from pollen, magnetic susceptibilityand particle size data

doi:10.1007/s12665-015-4415-6

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Vegetational and climatic variations during the past 3100 yearsin southern India: evidence from pollen, magnetic susceptibilityand particle size data
	Lu,XF(Lu,Xuefeng)[5]; Zhou,WJ(Zhou,Weijian)[5]; Warrier,AK(Warrier,Anish K)[2,4]; Shankar,R(Shankar,Rajasekhariah)[2]; Misra,S(Misra,Sandhya)[1,6]; Sandeep,K(Sandeep,Kizhur)[2,3]; Bhattacharyya,A(Bhattacharyya,Amalava)[1]
刊名	Environmental Earth Sciences
	2015-08
卷号	74 期号:4 页码:3559-3572
关键词	Pollen Palaeovegetation Magnetic susceptibility Pookot Lake Southern India
DOI	10.1007/s12665-015-4415-6
文献子类	期刊论文
英文摘要	Vegetational history vis a vis climate change during the past 3100 cal. years BP was deciphered from pollen data supplemented with magnetic susceptibility and particle size data for a 2.5 m long sediment core from Pookot Lake, Kerala, southern India. Pollen data suggest a mixed assemblage of upland tropical elements and wetland mangrove taxa. The presence of trace amounts of pollen grains of montane taxa like Betula, Pinus and Alnus points to their long distance dispersal. Pollen grains of Ixora, Syzygium, Symplocos, Moraceae and Arecaceae that represent tropical vegetation were also recovered, indicating modern vegetation in and around Pookot Lake. Mangrove elements are mostly represented by species of Rhizophora and Ceriops decandra along with other taxa. High-rainfall periods are characterised by high sand % and low clay % and vice versa. The pollen data correspond well with magnetic susceptibility and particle size data. The data obtained suggest three broad phases of climate, with minor oscillations, during the past 3100 cal. years BP: (1) wet climate during 3100–2500 cal. years BP; (2) dry climate spanning a long period that ended around 1000 cal. years BP; (3) amelioration in climate after 1000 cal. years BP, reflected in the presence of luxuriant vegetation and high magnetic susceptibility values.
语种	英语
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/9638]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.Present Address: Indian Institute of Technology, Gandhinagar, Gujarat 382424, India 2.Xi’an AMS Center, Institute of Earth Environment, Xi’an, China; 3.Present Address: ESSO-National Centre for Antarctic and Ocean Research, Ministry of Earth Sciences, Government of India, Headland Sada, Vasco da Gama, Goa 403804, India; 4.Present Address: Department of Post-Graduate Studies and Research in Geology, Government College Kasaragod, Kasaragod, Kerala 671123, India; 5.Department of Marine Geology, Mangalore University, Mangalagangotri 574199, India; 6.Birbal Sahni Institute of Palaeobotany, Lucknow 226007, India;
推荐引用方式 GB/T 7714	Lu,XF,Zhou,WJ,Warrier,AK,et al. Vegetational and climatic variations during the past 3100 yearsin southern India: evidence from pollen, magnetic susceptibilityand particle size data[J]. Environmental Earth Sciences,2015,74(4):3559-3572.
APA	Lu,XF.,Zhou,WJ.,Warrier,AK.,Shankar,R.,Misra,S.,...&Bhattacharyya,A.(2015).Vegetational and climatic variations during the past 3100 yearsin southern India: evidence from pollen, magnetic susceptibilityand particle size data.Environmental Earth Sciences,74(4),3559-3572.
MLA	Lu,XF,et al."Vegetational and climatic variations during the past 3100 yearsin southern India: evidence from pollen, magnetic susceptibilityand particle size data".Environmental Earth Sciences 74.4(2015):3559-3572.