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Gettysburg College

Publication Date

Fall 2012

Program Name

Madagascar: Biodiversity and Natural Resource Management


Mangroves are unique, tropical, intertidal forests that, among many other important functions, serve as large carbon sinks for the sequestration of atmospheric CO2. This project qualitatively assessed the mangrove forest of Honko Mangrove Conservation and Education (Tulear, Madagascar) in conjunction with Blue Ventures for a proposed Plan Vivo carbon stock project. The qualitative results were then compared with quantitative measurements in order to determine the most effective method of ecological assessment. Sixty-three stands of mangrove forest covering 9.72km2 were identified and mapped. Level of harvest, species composition, density, canopy cover, dominant height, dominant DBH, forest condition and composition were compared between the studies. Qualitative results agreed with quantitative measurements in species composition, dominant height, dominant DBH and forest condition. While there were some differences between level of harvest classifications, density, canopy cover and composition, neither method was determined to be superior to the other. Qualitative and quantitative data both support and correct each other and it is recommended that quantitative data be combined with qualitative observation to avoid oversight in future carbon stock assessments.


Environmental Health and Protection | Environmental Monitoring | Natural Resources and Conservation | Natural Resources Management and Policy


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