Degradation of mangrove forests in the Sundarbans: An assessment based on perspectives of mangrove resource collectors using the DPSIR framework

Abstract

Mangrove forests provide vital ecosystem services to communities in tropical countries, yet they are susceptible to degradation. The causes and effects of mangrove forest degradation in the Sundarbans of Bangladesh have not been thoroughly investigated. This study aimed to explore these issues from the perspective of mangrove resource collectors (MRCs). Utilizing the DPSIR (Driver, Pressure, State, Impact, and Response) framework, data were collected through in-depth interviews and focus group discussions with MRCs. The findings revealed that the drivers of mangrove degradation included reduced freshwater supply, increased demand for mangrove resources, climate change, and tourism. These drivers created pressures on the mangrove forests, manifesting through natural disasters, rising salinity levels, the establishment of the Farakka barrage, forest fires, coastal development, overexploitation, and pollution. Consequently, the forests experienced alterations in cover, a decline in mature trees, reduced stem density, and changes in species composition. The impacts of this degradation included biodiversity loss, diminished ecosystem services, and adverse effects on the livelihoods of communities dependent on mangroves. MRCs highlighted the necessity for support in generating alternative incomes, restoring freshwater supply, addressing the Farakka barrage issue collaboratively, enhancing forest management practices, and promoting mangrove afforestation and reforestation. These findings carry significant implications for policy reform, research, sustainable management, and conservation efforts for mangrove forests. They also underscore the need for developing alternative livelihood programs for communities living around the Sundarbans and other tropical regions facing similar challenges.