scholarly journals A Review of Sea-Level Rise Effect on Mangrove Forest Species: Anatomical and Morphological Modifications

10.5772/24662 ◽  
2011 ◽  
Author(s):  
Laura Yanez-Espinosa ◽  
Joel Flores
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Mangrove Forest ◽  
Forest Species

Recent Sediment Accumulation in a Mangrove Forest and Its Relevance to Local Sea-Level Rise (Ilha Grande, Brazil)

2008 ◽  
Vol 242 ◽  
pp. 533-536 ◽  
Author(s):  
Christian J. Sanders ◽  
Joseph M. Smoak ◽  
A. Sathy Naidu ◽  
Sambasiva R. Patchineelam
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Mangrove Forest ◽  
Sediment Accumulation ◽  
Recent Sediment

scholarly journals Assessment and Attribution of Mangrove Forest Changes in the Indian Sundarbans from 2000 to 2020

2021 ◽  
Vol 13 (24) ◽  
pp. 4957
Author(s):  
Sourav Samanta ◽  
Sugata Hazra ◽  
Partho P. Mondal ◽  
Abhra Chanda ◽  
Sandip Giri ◽  
...  
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Mangrove Forest ◽  
Vegetation Index ◽  
Health Indicators ◽  
Water Diversion ◽  
Mangrove Forests ◽  
River Channels ◽  
Monotonic Trend ◽  
Indian Sundarbans

The Indian Sundarbans, together with Bangladesh, comprise the largest mangrove forest in the world. Reclamation of the mangroves in this region ceased in the 1930s. However, they are still subject to adverse environmental influences, such as sediment starvation due to migration of the main river channels in the Ganges–Brahmaputra delta over the last few centuries, cyclone landfall, wave action from the Bay of Bengal—changing hydrology due to upstream water diversion—and the pervasive effects of relative sea-level rise. This study builds on earlier work to assess changes from 2000 to 2020 in mangrove extent, genus composition, and mangrove ‘health’ indicators, using various vegetation indices derived from Landsat and MODIS satellite imagery by performing maximum likelihood supervised classification. We show that about 110 km2 of mangroves disappeared within the reserve forest due to erosion, and 81 km2 were gained within the inhabited part of Sundarbans Biosphere Reserve (SBR) through plantation and regeneration. The gains are all outside the contiguous mangroves. However, they partially compensate for the losses of the contiguous mangroves in terms of carbon. Genus composition, analyzed by amalgamating data from published literature and ground-truthing surveys, shows change towards more salt-tolerant genus accompanied by a reduction in the prevalence of freshwater-loving Heiritiera, Nypa, and Sonneratia assemblages. Health indicators, such as the enhanced vegetation index (EVI) and normalized differential vegetation index (NDVI), show a monotonic trend of deterioration over the last two decades, which is more pronounced in the sea-facing parts of the mangrove forests. An increase in salinity, a temperature rise, and rainfall reduction in the pre-monsoon and the post-monsoon periods appear to have led to such degradation. Collectively, these results show a decline in mangrove area and health, which poses an existential threat to the Indian Sundarbans in the long term, especially under scenarios of climate change and sea-level rise. Given its unique values, the policy process should acknowledge and address these threats.

scholarly journals Satellite remote sensing to monitor mangrove forest resilience and resistance to sea level rise

2018 ◽  
Vol 9 (8) ◽  
pp. 1837-1852 ◽  
Author(s):  
Clare Duncan ◽  
Harry J. F. Owen ◽  
Julian R. Thompson ◽  
Heather J. Koldewey ◽  
Jurgenne H. Primavera ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Sea Level Rise ◽  
Sea Level ◽  
Satellite Remote Sensing ◽  
Mangrove Forest ◽  
Forest Resilience

The future of the Sundarbans mangroves in India

2021 ◽  
Author(s):  
Sugata Hazra ◽  
Sourav Samanta ◽  
Ananya Halder ◽  
Robert Nicholls ◽  
Jon French
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Mangrove Forest ◽  
Biosphere Reserve ◽  
World Heritage Site ◽  
Open Coast ◽  
The North ◽  
Management Interventions ◽  
Heritage Site ◽  
The Sundarbans

<p>The Sundarbans Biosphere Reserve is situated near Kolkata in the western part of the Ganges-Brahmaputra Delta. The Sundarbans mangroves together with the areas in Bangladesh are the world’s largest mangrove forest and home to the iconic Royal  Bengal Tiger. It is a Ramsar and World Heritage site. Over the last 20 years the mangroves have retreated from 10 to 50 m/yr along the open coast with the loss of 145 km<sup>2</sup> area of the biosphere reserve , 40% of which constitute the  mangrove forest. This erosion reflects a response to waves in the Bay of Bengaland relative sea-level rise of about  5 mm/yr since 1948 which increased further during the last decade. In percentage terms this observed forest land loss is manageable. However, it will continue and almost certainly accelerate with sea-level rise. As well as open coast erosion, inundation will also occur within the mangroves. Hence over many decades,Sundarbans mangroves will be progressively degraded endangering  their iconic species. We are using these observed data and the Sea Level Affecting Marshes Model (SLAMM)to explore possible trajectories of the Sundarbans evolution under different sea-level rise scenarios and management interventions. The areas to the north are densely populated and increasingly influenced by the expansion of Kolkata. Discussions with stakeholders suggest a managed retreat does not seem feasible or practical due to the large displaced populations.The paper will discuss theinter linkages of the slow onset hazard in a sinking and shrinking delta to explore pathways to achieve sustainable outcomes in south Asian deltas.  </p>

Mangrove forest sedimentation and its reference to sea level rise, Cananeia, Brazil

2009 ◽  
Vol 60 (6) ◽  
pp. 1291-1301 ◽  
Author(s):  
Christian J. Sanders ◽  
Joseph M. Smoak ◽  
A. Sathy Naidu ◽  
Denise R. Araripe ◽  
Lucian M. Sanders ◽  
...  
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Mangrove Forest

Glacial Contributions to 21st Century Sea Level Rise

Eos ◽  
2020 ◽  
Vol 101 ◽  
Author(s):  
Kate Wheeling
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
21St Century ◽  
Mass Change ◽  
Sources Of Uncertainty

Researchers identify the main sources of uncertainty in projections of global glacier mass change, which is expected to add about 8–16 centimeters to sea level, through this century.

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