Assessing vulnerability and climate risk to agriculture for developing resilient farming strategies in the Ganges Delta

The Ganges Delta supports a unique coastal ecosystem that is highly susceptible to global climate change. This paper presents results from a study on climate change impacts on coastal agriculture in the deltaic regions of Bangladesh and India. The study examined how risk emerges from the interaction...

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Main Authors: Uttam Kumar Mandal, Fazlul Karim, Yingying Yu, Amit Ghosh, Taslima Zahan, Sonali Mallick, Mohammad Kamruzzaman, Priya Lal Chandra Paul, Mohammed Mainuddin
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Climate Risk Management
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Online Access:http://www.sciencedirect.com/science/article/pii/S221209632500004X
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author Uttam Kumar Mandal
Fazlul Karim
Yingying Yu
Amit Ghosh
Taslima Zahan
Sonali Mallick
Mohammad Kamruzzaman
Priya Lal Chandra Paul
Mohammed Mainuddin
author_facet Uttam Kumar Mandal
Fazlul Karim
Yingying Yu
Amit Ghosh
Taslima Zahan
Sonali Mallick
Mohammad Kamruzzaman
Priya Lal Chandra Paul
Mohammed Mainuddin
author_sort Uttam Kumar Mandal
collection DOAJ
description The Ganges Delta supports a unique coastal ecosystem that is highly susceptible to global climate change. This paper presents results from a study on climate change impacts on coastal agriculture in the deltaic regions of Bangladesh and India. The study examined how risk emerges from the interaction of hazard, exposure and vulnerability. Climate hazards for the 89 administrative units (upazila in Bangladesh and block in India) were assessed using future climate data from the IPCC’s 6th assessment report. Hazard levels were assessed by integrating the impacts of four temperature extremes and five rainfall extremes critical to crop growth. Through an extensive literature review, 18 biophysical and socio-economic variables were identified as critical and policy-relevant, including three related to exposure and 15 to vulnerability. All indicators were normalized to a dimensionless scale ranging from 0 to 1 for use in vulnerability and risk assessments. Three upazilas in Bangladesh were classified as being under very high climate hazard. The exposure score was found to be relatively higher along Indian coast compared to Bangladesh coast. Among the 89 administrative units analyzed, five upazilas in Bangladesh and two blocks in India were identified under very high vulnerability index, covering 18.6% the area and 8.13% of the total population. When combining vulnerability and climate hazard, three upazilas in Bangladesh and one block in India were identified under very high risk to agriculture. These findings provide a practical framework for developing sustainable agricultural strategies and addressing climate risks in the Ganges Delta and other similar coastal ecosystems worldwide.
format Article
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institution Kabale University
issn 2212-0963
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publishDate 2025-01-01
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spelling doaj-art-ca899809b4ed43f3b1253121971f23282025-02-06T05:11:34ZengElsevierClimate Risk Management2212-09632025-01-0147100690Assessing vulnerability and climate risk to agriculture for developing resilient farming strategies in the Ganges DeltaUttam Kumar Mandal0Fazlul Karim1Yingying Yu2Amit Ghosh3Taslima Zahan4Sonali Mallick5Mohammad Kamruzzaman6Priya Lal Chandra Paul7Mohammed Mainuddin8ICAR-Central Soil Salinity Research Institute, Regional Research Station, Canning Town, West Bengal 743329, IndiaCSIRO Environment Business Unit, Canberra, ACT 2601, Australia; Corresponding author.CSIRO Environment Business Unit, Brisbane, QLD 4102, AustraliaICAR-Central Soil Salinity Research Institute, Regional Research Station, Canning Town, West Bengal 743329, IndiaOn-farm Research Division, Bangladesh Agricultural Research Institute, Gazipur, BangladeshICAR-Central Soil Salinity Research Institute, Regional Research Station, Canning Town, West Bengal 743329, IndiaFarm Machinery and Postharvest Technology Division, Bangladesh Rice Research Institute, Gazipur 1701, BangladeshIrrigation and Water Management Division, Bangladesh Rice Research Institute, Gazipur 1701, BangladeshCSIRO Environment Business Unit, Canberra, ACT 2601, AustraliaThe Ganges Delta supports a unique coastal ecosystem that is highly susceptible to global climate change. This paper presents results from a study on climate change impacts on coastal agriculture in the deltaic regions of Bangladesh and India. The study examined how risk emerges from the interaction of hazard, exposure and vulnerability. Climate hazards for the 89 administrative units (upazila in Bangladesh and block in India) were assessed using future climate data from the IPCC’s 6th assessment report. Hazard levels were assessed by integrating the impacts of four temperature extremes and five rainfall extremes critical to crop growth. Through an extensive literature review, 18 biophysical and socio-economic variables were identified as critical and policy-relevant, including three related to exposure and 15 to vulnerability. All indicators were normalized to a dimensionless scale ranging from 0 to 1 for use in vulnerability and risk assessments. Three upazilas in Bangladesh were classified as being under very high climate hazard. The exposure score was found to be relatively higher along Indian coast compared to Bangladesh coast. Among the 89 administrative units analyzed, five upazilas in Bangladesh and two blocks in India were identified under very high vulnerability index, covering 18.6% the area and 8.13% of the total population. When combining vulnerability and climate hazard, three upazilas in Bangladesh and one block in India were identified under very high risk to agriculture. These findings provide a practical framework for developing sustainable agricultural strategies and addressing climate risks in the Ganges Delta and other similar coastal ecosystems worldwide.http://www.sciencedirect.com/science/article/pii/S221209632500004XClimate hazardsExposureVulnerabilityRiskSundarbansBangladesh
spellingShingle Uttam Kumar Mandal
Fazlul Karim
Yingying Yu
Amit Ghosh
Taslima Zahan
Sonali Mallick
Mohammad Kamruzzaman
Priya Lal Chandra Paul
Mohammed Mainuddin
Assessing vulnerability and climate risk to agriculture for developing resilient farming strategies in the Ganges Delta
Climate Risk Management
Climate hazards
Exposure
Vulnerability
Risk
Sundarbans
Bangladesh
title Assessing vulnerability and climate risk to agriculture for developing resilient farming strategies in the Ganges Delta
title_full Assessing vulnerability and climate risk to agriculture for developing resilient farming strategies in the Ganges Delta
title_fullStr Assessing vulnerability and climate risk to agriculture for developing resilient farming strategies in the Ganges Delta
title_full_unstemmed Assessing vulnerability and climate risk to agriculture for developing resilient farming strategies in the Ganges Delta
title_short Assessing vulnerability and climate risk to agriculture for developing resilient farming strategies in the Ganges Delta
title_sort assessing vulnerability and climate risk to agriculture for developing resilient farming strategies in the ganges delta
topic Climate hazards
Exposure
Vulnerability
Risk
Sundarbans
Bangladesh
url http://www.sciencedirect.com/science/article/pii/S221209632500004X
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