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An estimate of the terrestrial carbon budget of Russia using inventory-based, eddy covariance and inversion methodsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 2 декабря 2015 г.
- Авторы: Dolman A.J., Shvidenko A., Schepaschenko D., Ciais P., Tchebakova N., Chen T., van der Molen M.K., Belelli Marchesini L., Maximov T.C., Maksyutov S., Schulze E.D.
- Журнал: Biogeosciences
- Том: 9
- Номер: 12
- Год издания: 2012
- Издательство: European Geosciences Union (EGU).
- Местоположение издательства: Germany
- Первая страница: 5323
- Последняя страница: 5340
- DOI: 10.5194/bg-9-5323-2012
- Аннотация: We determine the net land to atmosphere flux of carbon in Russia, including Ukraine, Belarus and Kazakhstan, using inventory-based, eddy covariance, and inversion methods. Our high boundary estimate is −342 Tg C yr−1 from the eddy covariance method, and this is close to the upper bounds of the inventory-based Land Ecosystem Assessment and inverse models estimates. A lower boundary estimate is provided at −1350 Tg C yr−1 from the inversion models. The average of the three methods is −613.5 Tg C yr−1. The methane emission is estimated separately at 41.4 Tg C yr−1. These three methods agree well within their respective error bounds. There is thus good consistency between bottom-up and top-down methods. The forests of Russia primarily cause the net atmosphere to land flux (−692 Tg C yr−1 from the LEA. It remains however remarkable that the three methods provide such close estimates (−615, −662, −554 Tg C yr–1) for net biome production (NBP), given the inherent uncertainties in all of the approaches. The lack of recent forest inventories, the few eddy covariance sites and associated uncertainty with upscaling and undersampling of concentrations for the inversions are among the prime causes of the uncertainty. The dynamic global vegetation models (DGVMs) suggest a much lower uptake at −91 Tg C yr−1, and we argue that this is caused by a high estimate of heterotrophic respiration compared to other methods.
- Добавил в систему: Mаксютов Шамиль Шавратович