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To improve the estimation of carbon pool of forest ecosystems is very important in studying their CO2 emission and uptake. However, our understanding of how much storages carbon in forest ecosystems in national parks, Korea is limited. The carbon storages of forest ecosystems were estimated in four national parks (Bukhansan, Seoraksan, Jirisan, Songnisan), Korea during 2010 and 2011. Each the national park was established three stands (30 m × 30 m) of broad-leaved deciduous forest. To estimate the biomass, we applied a biometric method involving tree allometric analysis (all tree ≥ 5 cm DBH). In each stand, we conducted soil sampling at two points randomly to a depth of 30 cm (interval 5 cm) by core (100 cc). Figure. 1. Amount of ecosystem carbon storage (tC ha-1) at three stands of the each National Parks (Bukhansan, Seoraksan, Jirisan, and Songnisan), Korea The biomass of trees in the four national parks on an average was 111 ± 28 tC ha-1 (mean ± SD) and ranged from 90 to 147 tC ha-1. The total amount of soil organic matter (SOM) at a depth of 30 cm included litter layer in the four national parks on an average was 114 ± 49 tC ha-1 (mean ± SD, range 55 tC ha-1 ~ 155 tC ha-1). In addition, the total carbon stocks of biomass and soil in the four national parks was approximately 224 ± 52 tC ha-1 (mean ± SD), ranged from 149 to 265 tC ha-1. Above values among the four national parks, the amounts of carbon storage in Bukhansan national park were lowest significantly. In particular, the SOM in the four national parks were higher than those of other studies, accounting for approximately 50% of total ecosystem. The total ecosystem carbon pools might be underestimated in this study because the amount of coarse woody debris was not included. The amounts of carbon storage in averages of the each National Parks, were higher than those of other studies significantly, except Bukhansan National Park. Figure. 2. Amount of soil oranic matter (tC ha-1) at three stands of the each National Parks (Bukhansan, Seoraksan, Jirisan, and Songnisan), Korea
