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Ten Year Evaluation of Carbon Stock in Mangrove Plantation Reforested from an Abandoned Shrimp Pond
Department of Environment, Kanso Technos Co., Ltd., Osaka 541-0052, Japan
Power Engineering R&D Center, The Kansai Electric Power Co., Inc., Kyoto 609-0237, Japan
Ranong Mangrove Forest Research Center, Department of Marine and Coastal Resources, Tambon Ngao, Muang District, Ranong 85000, Thailand
Department of National Park, Wildlife and Plant Conservation, 61 Pholyothin Road, Ladyao, Chatuchak, Bangkok 10900, Thailand
* Author to whom correspondence should be addressed.
Received: 2 April 2012; in revised form: 21 May 2012 / Accepted: 12 June 2012 / Published: 20 June 2012
Abstract: Forest carbon stocks—both in terms of the standing biomass and the soil organic carbon (OC)—were monitored in the mangrove plantation reforested from an abandoned shrimp pond for the 10 years following land excavation. Excavation to a level of 25 cm below the existing ground level increased the inundation time of tidal water from 463 to 7,597 hours per year, resulting in a significant increase of survival/growth rates for planted mangrove species, Rhizophora mucronata (RM) and Bruguiera cylindrica (BC), and of carbon stocks as well. RM showed high rates of standing biomass accumulation with 98.7 ton/ha while 28.8 ton/ha for BC was measured over 10 years in the excavated area. In contrast, the unexcavated area showed low rates of biomass accumulation, 1.04 ton/ha for RM and 0.53 ton/ha for BC in the same period. The excavated area recorded a twofold increase of soil OC in the upper 5 cm of the surface soil from 71.8 to 154.8 ton/ha in 10 years, however it decreased to 68.3 ton/ha in the unexcavated area where soil OC is susceptible to decomposition. These results imply that the potential of carbon sinks in reforested land from abandoned areas cannot be developed unless hydraulic conditions are properly recovered. The fast growing species Avicennia marina (AM) grew quickly for the first two years after colonization but its growth slowed down afterwards, showing a limited ability of carbon capture.
Keywords: mangrove reforestation; excavation; soil OC; standing biomass; blue carbon
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Matsui, N.; Morimune, K.; Meepol, W.; Chukwamdee, J. Ten Year Evaluation of Carbon Stock in Mangrove Plantation Reforested from an Abandoned Shrimp Pond. Forests 2012, 3, 431-444.
Matsui N, Morimune K, Meepol W, Chukwamdee J. Ten Year Evaluation of Carbon Stock in Mangrove Plantation Reforested from an Abandoned Shrimp Pond. Forests. 2012; 3(2):431-444.
Matsui, Naohiro; Morimune, Keiyo; Meepol, Wijarn; Chukwamdee, Jirasak. 2012. "Ten Year Evaluation of Carbon Stock in Mangrove Plantation Reforested from an Abandoned Shrimp Pond." Forests 3, no. 2: 431-444.