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Intercambio de dióxido de carbono entre el aire y el agua de mar: no hay evidencia de catálisis de tasa
Science (New York, N.Y.)
|April 8, 1983
Resumen
La catálisis enzimática no controla significativamente la transferencia de dióxido de carbono a los océanos. En cambio, la turbulencia impulsada por el viento es el factor principal que regula la absorción oceánica de dióxido de carbono atmosférico.
Área de la Ciencia:
- Oceanografía La oceanografía es la oceanografía.
- Ciencias ambientales Ciencias ambientales.
- Biogeoquímica La biogeoquímica es la bioquímica.
Sus antecedentes:
- La absorción oceánica de dióxido de carbono atmosférico es crucial para regular el clima global.
- Se ha planteado la hipótesis de que la catálisis enzimática, específicamente la anhidrasa carbónica, mejora el transporte masivo de CO2 al agua de mar.
- Comprender los principales impulsores de la absorción de CO2 oceánico es esencial para predecir los impactos del cambio climático.
Objetivo del estudio:
- Investigar el papel de la catálisis enzimática en el transporte masivo de dióxido de carbono a través de la interfaz aire-mar.
- Para comparar las tasas de transferencia de gases en el agua de mar natural y artificial con y sin anhidrase carbónica.
- Determinar los factores dominantes que controlan la absorción de CO2 en los océanos.
Principales métodos:
- Realizó experimentos de intercambio de gases utilizando muestras naturales y artificiales de agua de mar.
- Coeficientes de velocidad de transferencia de gas medidos.
- Evaluó el impacto de la adición de anhidrasa carbónica a muestras de agua de mar.
Principales resultados:
- No se encontró evidencia que respalde un papel significativo para la catálisis enzimática en el transporte masivo de CO2.
- Las tasas de transferencia de gas fueron comparables entre diferentes tipos de agua de mar y con o sin anhidrase carbónica.
- La turbulencia inducida por el viento se identificó como el principal factor que influye en la absorción de CO2 oceánico.
Conclusiones:
- La catálisis enzimática no es un regulador importante del transporte masivo de CO2 a los océanos.
- La absorción oceánica de dióxido de carbono atmosférico está controlada principalmente por procesos físicos, en particular por la turbulencia inducida por el viento.
- Este hallazgo tiene implicaciones para los modelos climáticos y las predicciones del secuestro de carbono oceánico.
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