Bousquet P, Peylin P, Ciais P, Le Quéré C, Friedlingstein P, Tans P P
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), F-91198 Gif-sur-Yvette Cedex, France.
Science. 2000 Nov 17;290(5495):1342-7. doi: 10.1126/science.290.5495.1342.
We have applied an inverse model to 20 years of atmospheric carbon dioxide measurements to infer yearly changes in the regional carbon balance of oceans and continents. The model indicates that global terrestrial carbon fluxes were approximately twice as variable as ocean fluxes between 1980 and 1998. Tropical land ecosystems contributed most of the interannual changes in Earth's carbon balance over the 1980s, whereas northern mid- and high-latitude land ecosystems dominated from 1990 to 1995. Strongly enhanced uptake of carbon was found over North America during the 1992-1993 period compared to 1989-1990.
我们运用反演模型，对20年的大气二氧化碳测量数据进行分析，以推断海洋和大陆区域碳平衡的年度变化。该模型表明，在1980年至1998年期间，全球陆地碳通量的变化幅度约为海洋通量的两倍。在20世纪80年代，热带陆地生态系统对地球碳平衡的年际变化贡献最大，而在1990年至1995年期间，北半球中高纬度陆地生态系统起主导作用。与1989 - 1990年相比，1992 - 1993年期间北美地区的碳吸收显著增强。
