NDLI: Holocene mangrove and coastal environmental changes in the western Ganga

Content Provider	Springer Nature Link
Author	Hait, Arghya K. Behling, Hermann
Copyright Year	2008
Abstract	A 50 m-long radiocarbon dated core was studied through sediment and pollen analysis to reconstruct the Holocene mangrove and environmental changes at a coastal site Pakhiralaya in the Sundarban Biosphere Reserve in the western Ganga–Brahmaputra Delta, India. This biosphere reserve harbours a diverse mangrove ecosystem and supports a large number of people living in the area. Pollen and stratigraphic data indicate the existence of a brackish water estuarine mangrove swamp forest in this area during the last 9880 cal yr b.p. The development of the mangrove forest is not shown continuously in the Holocene record. Rapid transgression of the sea (9240 cal yr b.p.) halted the development of the mangrove. After about 8420 cal yr b.p. mangrove recolonised the area and persisted until 7560 cal yr b.p. as a result of a balance between the sedimentation and sea level fluctuation. The mangrove disappeared again from the site until 4800 cal yr b.p. because of a high sedimentation rate and possible delta progradation with loss of habitats. The reappearance of mangrove at the study site occurred with a return of a brackish water estuarine environment and the site then gradually became supra tidal during the mid-late Holocene. The continuity of the mangrove development and dynamics was interrupted by the fluctuating sea levels. Climatic fluctuations were viewed as an indirect factor influencing the mangrove ecosystem.
Starting Page	159
Ending Page	169
Page Count	11
File Format	PDF
ISSN	09396314
Journal	Vegetation History and Archaeobotany
Volume Number	18
Issue Number	2
e-ISSN	16176278
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-11-20
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Holocene Palynology Mangrove dynamics Sea level change Ganga–Brahmaputra Delta India Archaeology Anthropology Climate Change Biogeosciences Paleontology
Content Type	Text
Resource Type	Article
Subject	Plant Science Archeology (arts and humanities) Paleontology

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