Mangrove forests provide important ecosystem services, and play important roles in terrestrial and
oceanic carbon (C) cycling. Although the C stocks or storage in terrestrial ecosystems in China have been
frequently assessed, the C stocks in mangrove forests have often been overlooked. In this study, we
estimated the C stocks and the potential C stocks in China’s mangrove forests by combining our own field
data with data from the National Mangrove Resource Inventory Report and from other published literature.
The results indicate that mangrove forests in China store about 6.91 0.57 Tg C, of which 81.74% is
in the top 1 m soil, 18.12% in the biomass of mangrove trees, and 0.08% in the ground layer (i.e. mangrove
litter and seedlings). The potential C stocks are as high as 28.81 4.16 Tg C. On average, mangrove forests
in China contain 355.25 82.19 Mg C ha1, which is consistent with the global average of mangrove C
density at similar latitudes, but higher than the average C density in terrestrial forests in China. Our
results suggest that C storage in mangroves can be increased by selecting high C-density species for
afforestation and stand improvement, and even more by increasing the mangrove area. The information
gained in this study will facilitate policy decisions concerning the restoration of mangrove forests in
China.
Mangrove forests provide important ecosystem services, and play important roles in terrestrial andoceanic carbon (C) cycling. Although the C stocks or storage in terrestrial ecosystems in China have beenfrequently assessed, the C stocks in mangrove forests have often been overlooked. In this study, weestimated the C stocks and the potential C stocks in China’s mangrove forests by combining our own fielddata with data from the National Mangrove Resource Inventory Report and from other published literature.The results indicate that mangrove forests in China store about 6.91 0.57 Tg C, of which 81.74% isin the top 1 m soil, 18.12% in the biomass of mangrove trees, and 0.08% in the ground layer (i.e. mangrovelitter and seedlings). The potential C stocks are as high as 28.81 4.16 Tg C. On average, mangrove forestsin China contain 355.25 82.19 Mg C ha1, which is consistent with the global average of mangrove Cdensity at similar latitudes, but higher than the average C density in terrestrial forests in China. Ourresults suggest that C storage in mangroves can be increased by selecting high C-density species forafforestation and stand improvement, and even more by increasing the mangrove area. The informationgained in this study will facilitate policy decisions concerning the restoration of mangrove forests inChina.
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