Abstract:

The carbon storage of artificial forest was studied by means of forest survey and remote sensing in Qianyanzhou Ecological Station,Jiangxi Province. Based on allometric models in addition to field survey,the biomass and carbon storage were calculated for both average ground area and the whole small watershed. IKONOS imagery was used for extracting specific forest areas. The biomass of individual trees for Pinus massoniana,Pinus elliottii and Cunninghamia lanceolata,all 19 years old,were 29.0,25.6 and 23.3 kg,respectively. The above-ground biomass of C. lanceolata forest,P. massoniana forest,P. elliottii forest,Schima superba forest and mixed forest was 14 088,8 768,7 542,13 215 and 8 359 g·m^-2 ,respectively. The average biomass and carbon storage of the artificial forest were 8 257 and 3 979 g·m^-2 ,respectively; The area of the small watershed was 207.96 hm², of which, 78.8% was forest and orange field; The total above-ground biomass and carbon storage of Qianyanzhou region were 13 291 t and 6 336 t, respectively; Plantation carbon storage accounted for the 79.24% of total carbon storage, which was the largest carbon pool; Aboveground vegetation biomass in this region was enhanced from 256 g·m^-2 to 6 391 g·m^-2 during the period 1983-2005, which increased 25 times. It is significant that artificial afforestation was an effective approach to the fixed carbon.

Key words: Qianyanzhou, carbon storage, biomass, Pinus massoniana, Pinus elliottii, Cunninghamia lanceolata, Schima superba