[Forest carbon storage and fuel carbon emission in Tanjiang River basin].
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 x 10 (7) t in 1990 and 1.28061 x 10 (7) t in 2002, with an annual increment of 1.856 x 10(5) t, while the fuel carbon emission was 9. 508 x 10(5) t in 1990 and 1.8562 x 10(6) t in 2002, with an annual increment of 7.0 x 10(4) t. In 2003, the fuel carbon emission was up to 2.1968 x 10(6) t, 3.406 x 105 t more than that in 2002. In 2002, the energy consumption per 10(4) 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 x 10(5) t, 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.
Chen
Zhiliang
Z
South China Botanical Garden, Chinese Academy of Sciences, Guangzhou. zhiliangchen521@126.com
Xia
Nianhe
N
Wu
Zhifeng
Z
Cheng
Jiong
J
Liu
Ping
P
D002244:Carbon / Q000032:analysis*; D002245:Carbon Dioxide / Q000378:metabolism*; D002681:China; D005579:Fossil Fuels / Q000009:adverse effects*; D017752:Greenhouse Effect; D045483:Rivers; D014197:Trees / Q000254:growth & development / Q000378:metabolism*
D005579:Fossil Fuels; D002245:Carbon Dioxide; D002244:Carbon