作　　者： ; ; ; ; ;

机构地区： 中国科学院华南植物园

出　　处： 《应用生态学报》 2006年第10期1807-1810,共4页

摘　　要： 研究了潭江流域典型区中小尺度森林碳库与人类活动化石能源碳释放.结果表明,自1990年以来,森林一直起着碳汇的作用,并且随着经济发展与时间延长,汇的作用得到加强,1990年森林净吸收碳量为1.0579×107t,到2002年森林净吸收碳量增至1.28061×107t,年平均净吸收碳量为1.856×105t.化石能源的碳释放与经济增长呈正相关,1990年的化石能源碳排放为9.508×105t,2002年为1.8562×106t,年平均增加量7.0×104t,2003年达到2.1968×106t,比2002年增加3.406×105t.2002年,潭江流域万元GDP能耗为2.21t标煤,高于珠江三角洲平均水平.如果提高能源利用效率,使能耗降低至平均水平,则可削减3.360×105t碳排放,大于2002年流域森林净吸收的碳量.从流域净吸收与净增排放的碳量来看,流域碳平衡与人类活动的关系有待进一步研究. The investigation on the forest carbon storage and fuel carbon emission in Tanjiang River basin showed that since 1990, the forests in Tanjiang River basin acted as a carbon sink, and this action was increased with time and with economic development. The net carbon uptake by the forests was 1. 0579×10^7t in 1990 and 1. 28061×10^7t in 2002, with an annual increment of 1. 856×10^5t, while the fuel carbon emission was 9. 508×10^5t in 1990 and 1. 8562 ×10^6tin 2002, with an annual increment of 7.0×10^4t. In 2003, the fuel carbon emission was up to 2. 1968×10^6t, 3. 406×10^5tmore than that in 2002. In 2002, the energy consumption per 104 yuan GDP in Tanjiang River basin was 2. 21 t standard coal, higher than the average consumption （ 1.81 t standard coal） in the Pearl River delta. If the fuel consumption decreased to the average level, the carbon emission in Tanjiang River basin would be reduced by 3. 360×10^5t, which was higher than the annual increment of forest net carbon uptake in the basin. From the viewpoint of net carbon uptake and emission in a basin, more attention should be paid to the relations between forest carbon sink and human activities.

关 键 词： 生物量碳量 碳释放 化石能源碳量 潭江流域

领　　域： [经济管理]