首页|Assessment of coastal and mangrove vulnerability in the Andaman Island,Indian Ocean

Assessment of coastal and mangrove vulnerability in the Andaman Island,Indian Ocean

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Coastal regions are highly susceptible to the effects of global warming,including rising atmospheric and sea surface temperatures,increased cyclone frequency,and sea level rise.Thus,it is imperative to exam-ine coastal vulnerability to minimize the impact of multiple hazards and protect coastal resources,such as mangroves.Particularly in India studying the vulnerability of coastal zones of Andaman and Nicobar Islands which fall in seismic zone V is critical for conservation efforts.We conducted a vulnerability anal-ysis of coastal zones impacted by the 2004 earthquake,causing varying degrees of ground upliftment and subsidence.We compared coastal vulnerability among sites that experienced uplift,no change,and sub-sidence(the southern portion).Our analysis utilized the Coastal and Mangrove Vulnerability Index(CVI and MVI)to measure and compare vulnerability in six zones distributed along uplift and subsidence gra-dient.High-resolution satellite imagery including WorldView-2,3,and GeoEye-1 from year 2022 are uti-lized on this study.The CVI and MVI offers a good way to measure and compare vulnerabilities across sites and offer insights for better management.The CVI and MVI results indicate that approximately 34％of coastal grids and over 23％of mangrove grids across all zones are highly to extremely highly vul-nerable.Subsided zones were found to be more vulnerable than uplifted zones.These findings suggest that large-scale natural disturbances such as tectonic displacement have the potential to impact coastal vegetation and mangrove cover can become even more vulnerable.In conclusion,our study emphasizes the importance of vulnerability analyses in coastal regions,especially in areas prone to seismic activity.Our findings have direct implications for conservation and restoration efforts and underscore the need for continued monitoring and mitigation efforts to safeguard coastal resources for long-term sustainability.

MangrovesCoastal vulnerabilityMangrove vulnerability2004 Indian Ocean earthquakeAndaman Island

Biswajit Mondal、Rupesh K.Bhomia、Ashis Kumar Saha、Richard A.MacKenzie

展开 >

Department of Geography,Delhi School of Economics,University of Delhi,Delhi 110007,India

Centre for International Forestry Research(CIFOR),Jalan CIFOR,Situ Gede,Bogor Barat,Bogor 16115,Indonesia

Institute of Pacific Islands Forestry,Pacific Southwest Research Station,USDA Forest Service,Hilo,HI 96720,USA

United States Agency for International Development(USAID)Center for International Forestry Research(CIFOR)Sustainable Wetlands Adaptation and Mitigation Program(SWAMP)SWAMP program as a joint collaboration between CIFOR and US Forest Service

2024

10.1016/j.gsf.2024.101820

地学前缘(英文版)
中国地质大学（北京） 北京大学

地学前缘(英文版)

CSTPCD
影响因子：0.576
ISSN：1674-9871
年,卷(期)：2024.15(5)