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Research Article | Published: 15 January 2026

Spatiotemporal Monitoring and Simulations of the Land Use and Land Cover Changes in Chakaria Mangrove Forest of Bangladesh

a , a , b,c , d

aDepartment of Geography and Environmental Studies, University of Chittagong, Chattogram 4331, Bangladesh

bChongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station, School of Geographical Sciences, Southwest University, Chongqing 400715, China

cChongqing Engineering Research Center for Remote Sensing Big Data Application, School of Geographical Sciences, Southwest University, Chongqing 400715, China

dBiomaterials Research Laboratory, Department of Applied Chemistry and Chemical Engineering, University of Chittagong, Chattogram 4331, Bangladesh

Abstract

The mangrove forests are growing woody plants susceptibly different for their physiochemical properties of soil, water and air quality. Besides, the mangrove forests land cover over the coastal areas has ecological and societal importance therefore, bearing different biodiversity, and different ecology, which have an aesthetic value for the live and, livelihoods. Moreover, mangrove forests play a crucial role in stabilizing shorelines and in helping reduce the devastating impact of natural disasters such as tsunamis, and hurricanes etc. The rapid growth of urbanization is the ultimate result of undergoing radical changes in its physical form, not only in its vast territorial expansion but also internal physical transformations over the last three decades. Physical characteristics of the Chakaria region is gradually changing, especially impacts over the mangrove forests. Therefore, this study attempted to figure out the root causes of this transformation, rate of transformation, consequences thereafter and strategic plan and policies to develop. As to fulfill the requirements, the temporal based spatial and areal changes of land use and land covers assessed for the yearly explorations using Landsat imagery for 1990, 2000, 2010, and 2020 were prepared individually and evaluated the land transformation and its annual changing rate. On Screen Digitization (visual interpretation) method has been applied to prepare the base maps with six land cover classes such as the water bodies, vegetation coverage, salt cultivation, shrimp cultivation area, mangrove forest, and settlement area. Further, the study evaluated that the settlement area, shrimp cultivation and salt cultivation land use types have been increasing at a high rate over the years. The principle driving these transformations were human settlements and forests coverage, which had conversely correlated each other. The significant land cover decline is found in water bodies (1562 ha), and mangrove forests (2426 ha) between 1990 and 2020, while settlement area, salt cultivation, and shrimp cultivation increased by an average of 13.72%. The study can be used as a baseline information for the conservation and master plan for the study area.

Keywords: Land use and land cover change; Mangrove forests; Landsat; Ecosystem sustainability; Bangladesh

CRediT authorship contribution statement

Mohammed Adil: Writing – review & editing, Writing – original draft, Methodology, Investigation, Formal analysis, Data curation, Conceptualization. Shahidul Islam: Writing – review & editing, Visualization, Supervision, Funding acquisition, Formal analysis, Conceptualization.. Minggui Ma: Writing – review & editing, Software, Methodology. Sumon Ganguli: Writing – review & editing, Visualization, Data curation.

Declaration of competing interest

The authors would like to thank USGS for providing Landsat Imagery. Google for Google Earth engine API, and special thanks to the reviewers for their comments.

Acknowledgments

The authors would like to thank USGS for providing Landsat Imagery. Google for Google Earth engine API, and special thanks to the reviewers for their comments.

About the Article

DOI:

Received 8 July 2025 | Revised 17 December 2025 | Accepted 30 December 2025 | Published online: 15 January 2026

Article In Press Article number 10003

Corresponding Author: Shahidul Islam

Cite this article

M. Adil, S. Islam, M. Ma, S. Ganguli (2026). Spatiotemporal Monitoring and Simulations of the Land Use and Land Cover Changes in Chakaria Mangrove Forest of Bangladesh. Terra Geospatial, Article In Press.