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Characterization and conservation of wetlands with global change dynamics: a case study on Ratargul Swamp Forest, Bangladesh
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Orientador(es)
Resumo(s)
Bangladesh is known as the largest delta in the world, where 50% of the total country's national land is wetlands. This wetland includes rivers, estuaries, mangroves, freshwater marshes, river marsh areas, water storage reservoirs, ponds and other seasonal flood areas. About 50% of people in this country are directly dependent on wetland resources for subsistence and 70% of animal protein in the country comes from fresh water fish. Moreover, 6-8% revenue comes from only marsh areas. However, most of these wetlands of Bangladesh are being destroyed due to the high population pressure and extreme level of resource extraction. A case study was completed in the Swamp Ratargul forest with the aim of characterizing the functions, values and services of the forest. This study also explores the dependence criteria of the local human population, disruption and optimal management option for this forest. To complete this study, approaches were followed by qualitative and quantitative research. The rural population was engaged in participatory tools to collect socio-economic information. GIS were used to detect changes in land use over time. The results showed that the forest is located 35 m above mean sea level. During the rainy season, the average height of the forest floor water level is 4 m. This forest provides various products and ecosystem services, which plays a key role in the livelihood of the local population. But, degradation and disturbance of the forest are significant. The study showed that the high-density forest was reduced in 18.40 hectares and the degraded area increased by 25.53 ha from 2005 to 2015. However, the participatory forest management approach could be an effective tool for sustainable management
Descrição
Mestrado Mediterranean Forestry and Natural Resources Management / Instituto Superior de Agronomia - UL
Palavras-chave
wetlands ecosystem services global change human livelihoods sustainable use
Contexto Educativo
Citação
Kanan, A.H. - Characterization and conservation of wetlands with global change dynamics: a case study on Ratargul Swamp Forest, Bangladesh. Lisboa: ISA, 2016, 45 p.