Summary
The rate of net oceanic absorption of carbon from the atmosphere is shown to linearly follow the increment in atmospheric carbon relative to its preindustrial stationary level. The amount of carbon absorbed depends on the intensity of the biogenic processes in the ocean, since the rate of biogenic absorption by the ocean appears to be approximately an order of magnitude higher than that of physicochemical absorption. The accumulation of carbon in the atmosphere is governed by the emissions of carbon from the land biota and not from fossil fuel reservoir.
Riassunto
Si mostra che il tasso di assorbimento oceanico netto del carbonio dall’atmosfera segue linearmente l’incremento di carbonio atmosferico relativo al suo livello stazionario preindustriale. La quantità di carbonio assorbito dipende dall’intensità dei processi biogenici nell’oceano, poiché il tasso di assorbimento biogenico dell’oceano sembra approssimativamente maggiore di un ordine di grandezza rispetto a quello dell’assorbimento fisico-chimico. L’accumulo di carbonio nell’atmosfera è regolato dalle emissioni di carbonio dai biosistemi della Terra e non dalle riserve di combustibile fossile.
Резюме
Показано, что скорость чистого поглошения углреода океаном из атмосферы пропорциональна приросту массы углерода в атмосфере по сравнению с прединдустриальным стационарном уровнем. Константа пропорциональности найдена из данных об изменении содержания радиоуглерода в древесных кольцах и данных о выбросах CO2 из ископаемого топлива. Величина поглошения определяется биологическими процессами в океане. Скорость биологического поглошения океаном примерно на порядок превосходит физико-химическое чистое поглошение океаном. Накопление углерода в атмосфере определяется в основном выбросами углерода из наземной части биосферы, а не из резервуара ископаемого топлива.
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Gorshkov, V.G. Atmospheric disturbance of the carbon cycle: Impact upon the biosphere. Nuov Cim C 9, 937–952 (1986). https://doi.org/10.1007/BF02891905
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DOI: https://doi.org/10.1007/BF02891905