Atmospheric CO2 evasion, dissolved inorganic carbon production, and net heterotrophy in the York River estuary
Atmospheric CO2 evasion, dissolved inorganic carbon production, and net heterotrophy in the York River estuary
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DOI：
10.4319/lo.2000.45.8.1707
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发表时间：
2000-12
影响因子：
4.5
通讯作者：
P. Raymond;J. Bauer;J. Cole
中科院分区：
文献类型：
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作者：
P. Raymond;J. Bauer;J. Cole
在弗吉尼亚州约克河口的表层沃茨中，对CO2分压（pCO2）和溶解无机碳（DIC）进行了为期2年的直接测量。表层沃茨中pCO2含量大于上覆大气中pCO2含量，表明河口在大多数时间和地点是大气CO2的净源。基于盐度的DIC混合曲线表明，DIC和碱度也有一个内部来源，这意味着河口内的净碱度生成。DIC和碱度来源显示出与pCO2相似的季节性模式，并且在2年的研究期内具有重现性。
Direct measurements of the partial pressure of CO2 (pCO2) and dissolved inorganic carbon (DIC) were made over a 2‐yr period in surface waters of the York River estuary in Virginia. The pCO2 in surface waters exceeded that in the overlying atmosphere, indicating that the estuary was a net source of CO2 to the atmosphere at most times and locations. Salinity‐based DIC mixing curves indicate there was also an internal source of both DIC and alkalinity, implying net alkalinity generation within the estuary. The DIC and alkalinity source displayed seasonal patterns similar to that of pCO2 and were reproducible over a 2‐yr study period.