Carbon storage dynamics under the forest restoration in Guangdong Province, China

The study was carried out using volume-derived method and forest resource inventory from 1994 to 2003 of Guangdong Province.The authors quantified the carbon accumulation of forest vegetation in the process of forest restoration during the 10 years.OBPA included open forest,bamboo forest,production forest and ambient trees in this paper.Results were as the followings:the whole forest vegetation had accumulated carbon 41.67 Tg during this period.Forest carbon density increased by 1.58 Mg/hm² at the same time.Carbon storage of litterfall and understory occupied 38%-44% of the total carbon pool.Carbon storage of litterfall was a little more than that of understory.The result of comparing four carbon pools is as followings:coniferous forests>broadleaved forests>OBPA>mixed forests.Carbon storage of P.massoniana forests was the biggest among the 11 forest types and Albizia falcataria(Linn.) Fosberg forest was the smallest.Carbon storage of maturescent forest,mature forest and post-mature forest increased but young forest diminished.Carbon storage of middle-aged forest had little changes and it was always the biggest among the five groups.Carbon accumulation rate of broadleaved forests was the highest among broadleaved forests,coniferous forests and mixed forests in Guangdong Province,with the rate ranging from 0.19 to 1.36 Mg/(hm²·a) during this period.