福建省建瓯市毛竹林生态系统固碳状态研究

Carbon storage of Phyllostachy edulis ecosystems in Jian’ou city

毛竹林是碳汇的重要陆地生态系统类型,研究毛竹林系统的碳库及潜力是评价其固碳增汇的重要基础。以福建省建瓯市为研究对象,通过典型样点采样调查,对建瓯市的毛竹林生态系统碳储状态进行了分析。结果表明：建瓯市毛竹林单株平均碳量为11.5 kg C,竹秆约占60%;单位面积的土壤碳储量平均为C 90.6 t.hm-2（0~60 cm）;毛竹林生态系统单位面积的总碳量平均为C 150 t·hm-2;由此可以推算,建瓯市的毛竹林总碳储量为12.9 Tg C;如果以此为基础,则可以估算,目前全国竹林生态系统碳储量为870 Tg C。

Phyllostachy edulis ecosystem is one of the most important terrestrial ecosystems in carbon storage.It is necessary to investigate the carbon storage and potential for assessment of Phyllostachy edulis against the global warming.Jiangou city was selected for the study of the carbon storage of Phyllostachy edulis ecosystem through investigation and analysis of typical sites over the city.Results showed that the single culm of Phyllostachy edulis had a carbon of 11.5 kg in mean,and the bamboo stem accounted for 60%.The soil carbon storage of the bamboo ecosystem was 90.6 t C.hm^-2in the layer of 0-60 cm.The carbon storage density was 150 t C hm^-2of the Phyllostachy edulis ecosystem in Jianou city.Therefore,the total carbon storage could be inferred as 12.9 Tg C in Jianou city and it was further estimated as 870 Tg C of bamboo ecosystems of the whole country.