R. Bachmann, M. Hoyer, D. Canfield, C. Schelske, F. J. Aldridge, H. Carrick, M. Coveney
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引用次数: 1
摘要
我们发现SCHELSKE et al. (2003, Arch。当考虑到整个湖泊生态系统的年生产速率和呼吸速率时，认为Apopka湖不是净异养的观点是不正确的。新的水和沉积物碳收支表明，在研究期间，包括初级生产和流入(765 g C m -2 yr -1)在内的年有机碳源的总和小于包括水和沉积物呼吸和流出(2497 g C m -2 yr -1)在内的年损失的总和。双氧曲线表明，在接近中午的时候，地表有可能出现氧过饱和，但在24小时内仍有净异养。
Net production and net heterotrophy in Lake Apopka : a comment on SCHELSKE et al. (2003). Commentary and Authors' reply
We found the conclusion of SCHELSKE et al. (2003, Arch. Hydrobiol. 157:145-172) that Lake Apopka was not net heterotrophic was incorrect when annual rates of production and respiration for the entire lake ecosystem are taken into consideration. A new carbon budget for the water and sediments showed for the period of study the sum of the annual sources of organic carbon including primary production and inflows (765 g C m -2 yr -1 ) was less than the sum of the annual losses including respiration in the water and sediments and outflows (2497 g C m -2 yr -1 ). Diel oxygen curves demonstrated that it is possible to have oxygen supersaturation at the surface near midday and still have net heterotrophy over 24-h.
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