Holocene Sea-level Scenarios in Bangladesh

Rashid, Towhida

doi:10.1007/978-981-4560-99-3

Cited by 14 publications

(8 citation statements)

References 0 publications

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“…1), supporting other evidence of rapid sea-level change about 9-11 kp BP [12]. Buried mangrove peats lie in other coastal waters, such in the Caribbean [13] and the northern Indian Ocean [23]. And while the thicknesses of these peat deposits indicate that mangroves were able to keep pace with the rise in sea level for long time periods, the rate of sea level increased beyond a critical threshold at which mangroves were not able to keep up [8•].…”

Section: Historical Evidencesupporting

confidence: 71%

“…Deep mangrove peat deposits under existing mangroves constitute compelling evidence that over thousands of years, mangroves, such as in the Caribbean [6], have kept pace with sea level rise. However, in other regions, mangrove peat lies below Holocene sediment deposits in shallow coastal and inshore areas [23]. For example, mangrove peat is buried beneath 1-2 m of carbonate deposits within drowned river channels beneath the Great Barrier Reef.…”

Section: Historical Evidencementioning

confidence: 99%

“…The exemplar is the Sundarbans along the Indian and Bangladesh coast, where subsidence and disappearance of many deltaic islands is ongoing. A time series analysis indicates that subsidence, a decline in sediment input from the Ganges and other rivers due to damming, and rising sea level, have resulted in a dramatic decline in mangroves on islands in the central and eastern sectors of the Sundarbans [23,30]. In other river deltas, sea level rise, storms, and cyclones enhanced subsidence and declines in sediment supply, resulting in a shift of mangroves landwards but with a net contraction [35].…”

Section: Modern Evidencementioning

confidence: 99%

See 2 more Smart Citations

The Impact of Climate Change on Mangrove Forests

Alongi

2015

Curr Clim Change Rep

368

210

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Mangrove forests have survived a number of catastrophic climate events since first appearing along the shores of the Tethys Sea during the late Cretaceous-Early Tertiary. The existence of mangrove peat deposits worldwide attests to past episodes of local and regional extinction, primarily in response to abrupt, rapid rises in sea level. Occupying a harsh margin between land and sea, most mangrove plants and associated organisms are predisposed to be either resilient or resistant to most environmental change. Based on the most recent Intergovernmental Panel on Climate Change (IPCC) forecasts, mangrove forests along arid coasts, in subsiding river deltas, and on many islands are predicted to decline in area, structural complexity, and/or in functionality, but mangroves will continue to expand polewards. It is highly likely that they will survive into the foreseeable future as sea level, global temperatures, and atmospheric CO 2 concentrations continue to rise.

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Section: Historical Evidencesupporting

confidence: 71%

Section: Historical Evidencementioning

confidence: 99%

Section: Modern Evidencementioning

confidence: 99%

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The Impact of Climate Change on Mangrove Forests

Alongi

2015

Curr Clim Change Rep

368

210

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“…All the rivers originate from the Himalayas in the north and flow towards the south and southeast. A few small rivers have cut across the Pleistocene Barind Tract towards the south, while the others flow along the eastern and western margins of the upland [27].…”

Section: Study Areamentioning

confidence: 99%

Soil Contamination Assessment by Trace Elements in Barapukuria Coal Mine Region, Bangladesh

Saha¹,

Gazi²,

Tajwar³

et al. 2021

EESRJ

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Coal mining areas in Bangladesh are exposing to extreme environmental problems due to the mobilization of heavy metals in the surrounding region. To assess the persisting risk, several soil samples were collected from the nearby coal mine areas. The amount of pollution of heavy metal has been calculated to determine the extent of the contamination. Soil contamination assessment was carried out using pollution evaluation indices such as heavy metal pollution index (HPI), the degree of contamination (Cd), and the contamination factor (CF). The concentration of S, As, Ba and, F exceeded the maximum concentration level in some soil samples. The HPI and the Cd yield similar results. The CF shows strong similarities with the Cd and gives a better evaluation of pollution levels. HPI indicates that about 71.42% of samples exceed the high level. Cd and CF show that about 71.42% sample is highly contaminated by trace element and 14.28% sample is highly contaminated by S, Cl, and F. Based on radioactive element analysis about 14.28% samples show medium contamination level. The findings of this research help us to assess the level of soil contamination and the extent of environmental and health concerns in the region of the Barapukuria coal mine.

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“…Several studies show that the western part of the coastline is highly vulnerable to sea-level rise (SLR) due to thermal expansion of ocean water and increased melting of glaciers and ice caps because of global warming (Sarwar, 2013;Rashid, 2014). Since the coastal area of Bangladesh is neither uniform nor static (Brammer 2014a(Brammer , 2014b and since the net loss of land due to SLR in any area depends on many factors including accretion and erosion, different regions are vulnerable to SLR in different degrees.…”

Section: Sea-level Rise (Slr)mentioning

confidence: 99%