Biodiversity and carbon sequestration assessments for wetland management framework in the wetlands in Bangladesh for climate mitigation and adaptation
No hay miniatura disponible
Fecha
Título de la revista
ISSN de la revista
Título del volumen
Editor
FAO ;
Resumen
Descripción
The wetlands of Bangladesh are biologically diversified having a wide range of ecosystems ranging from northern region’s Haor to Mangrove forests of coastal zone of the country. Among these wetlands, there are two RAMSAR sites; Tanguar Haor and The Sundarbans. An updated inventory of the biodiversity and tree carbon stock is a timely demand as the climate mitigation and biodiversity conservation is of high significance in Bangladesh. This studies objective is to assess the floral (tree) diversity and above ground carbon stock per hector in and around
the wetlands along with a wetland management framework for Bangladesh. this study uses both qualitative and quantitative method. This study adopts a nested plot inventory method to assess biodiversity assessment (diversity and evenness index) and carbon stock assessment. A total of 190 plots were taken in three different types of wetlands: 50 plots in Tangoar Haor, 50 plots in Kaptai Lake, 20 plots in Baikka Beel, 20 plots in Ratargul swamp forest and 50 plots in Hakaluki Haor. Additionally, 300 personal interviews along with 40 FGDs were carried out to obtain the people’s perception on biodiversity status in context of previous time. The study reveals that, the Shannon indexes for Tanguar Haor, Kaptai Lake, Baikka Beel, Ratargul swamp forest and Hakaluki Haor are 0.517, 0.779, 0.687, 0.279 and 0.828 respectively. It shows that the Ratargul have low biodiversity, whereas Hakaluki haor have higher biodiversity. Secondly the tree above ground carbon stocks tons per hectors for Tanguar Haor, Kaptai Lake, Baikka Beel, Ratargul swamp forest and Hakaluki Haor are 25.929, 59.210, 28.767, 31.538 and 33.587. The social data i.e., interview and FGD indicates a declining trend of tree species diversity in comparison past. The study results also provide comprehensive management framework involving malty level stakeholders for wetlands of Bangladesh.
Keywords: Biodiversity conservation, Adaptive and integrated management, Climate change
ID: 3486762