Comparison of carbon reserve at mangrove forests under different management type in North Sumatra
Onrizal & Mashhor Mansor
Mangrove deforestation and degradation will be influence on the forest carbon stock and to be one of substantial factor of climate change. The objective of this research was to estimate the carbon stock of mangrove forests under different management type in North Sumatra. A total of 16 sampling plots on the four mangrove management types (4 on each type) were surveyed during July-August 2009. At each sampling site, four plots (30 m x 30 m) were layout, and all trees with diameter at breast height (DBH) ≥ 5 cm were identified and the DBH and height were recorded. The highest of carbon stock was found in village/community forests (78.39 ± 43.31 t C/ha), and followed by conservation forests (22.39 ± 9.54 t C/ha), production forests without cutting for charcoal (10.09 ± 3.29 t C/ha), and the lowest of carbon stock was found in production forests with cutting for charcoal (2.47 ± 2.22 t C/ha). The research result show that the mangrove forests under village/community forests is better than others forest management type within carbon reserve in North Sumatra. Therefore, the traditional wisdoms in mangrove forests management should be promoted to mitigate the climate changes.
Keywords: mangrove, carbon reserve, forest management, North Sumatra
Presented at the 2010 International Symposium of Association for Tropical Biology and Conservation on 19–23 July 2010 in Bali, Indonesia