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DOI10.1016/j.quaint.2018.12.008
Late Pleistocene and Holocene vegetation changes and anthropogenic impacts in the Cauvery delta plains, southern India
Mohapatra, P. P.1,2; Stephen, A.2; Prasad, S.2; Singh, P.1; Anupama, K.2
发表日期2019
ISSN1040-6182
EISSN1873-4553
卷号507页码:249-261
英文摘要

A 5 m long core from Uttarangudi in the distal plain of Cauvery delta in South India provides evidences of vegetation, climate and anthropogenic activities during the late Pleistocene and Holocene. The pollen catchment area for this region is the localised sources, including the adjoining Tertiary upland plateau. The recorded variation in pollen assemblages and sediments indicates that the environmental conditions have changed over time from aerial oxidising to lacustrine or ponded environment. The lack of pollen records from 17,802 cal BP until 11,535 cal BP suggests severe drier conditions and an extremely patchy, species-poor Tropical Dry Evergreen Forest (TDEF) vegetation community associated with an arid climate. Between 11,535 and 8487 cal BP, partial climatic amelioration appears to have occurred, and the trend become humid until 7034 cal BP characterised by the expansion of the TDEF vegetation and strengthening of the monsoon precipitation. The period from 7034-3553 cal yr BP recorded a regressive transition of the forest taxa influenced by a weakened monsoon precipitation and enhanced anthropogenic activity. The subsequent increase of disturbance signals post 3553 cal yr BP is in agreement with independent archaeological evidences obtained from this region.


WOS研究方向Physical Geography ; Geology
来源期刊QUATERNARY INTERNATIONAL
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/93678
作者单位1.Pondicherry Univ, Sch Phys Chem & Appl Sci, Dept Earth Sci, Kalapet 605014, Puducherry, India;
2.French Inst Pondicherry, Dept Ecol, Lab Palynol & Paleoecol, 11 St Louis St, Pondicherry 605001, India
推荐引用方式
GB/T 7714
Mohapatra, P. P.,Stephen, A.,Prasad, S.,et al. Late Pleistocene and Holocene vegetation changes and anthropogenic impacts in the Cauvery delta plains, southern India[J],2019,507:249-261.
APA Mohapatra, P. P.,Stephen, A.,Prasad, S.,Singh, P.,&Anupama, K..(2019).Late Pleistocene and Holocene vegetation changes and anthropogenic impacts in the Cauvery delta plains, southern India.QUATERNARY INTERNATIONAL,507,249-261.
MLA Mohapatra, P. P.,et al."Late Pleistocene and Holocene vegetation changes and anthropogenic impacts in the Cauvery delta plains, southern India".QUATERNARY INTERNATIONAL 507(2019):249-261.
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