Breithaupt et al. (2020, https://doi.org/10.1029/2019JG005349) investigated why rates of organic carbon (OC) burial in coastal wetlands appear to increase over the past ∼120 years. After comparing dating methods and applying biogeochemical analyses, we concluded that neither dating method nor carbon degradation contribute to the observed trend. Rather, we concluded that OC burial has increased in the past century. Parkinson's (2021) Comment disagrees with our conclusion, contending that: (1) use of a density correction to account for soil auto‐compaction is a flawed methodology that artificially shortens a core's length, (2) there is limited evidence for an acceleration in the regional sea‐level rise (SLR) rate, and (3) vertical accretion rates in previous papers by Breithaupt et al. (2014, https://doi.org/10.1002/2014JG002715; 2017, https://doi.org/10.1016/j.margeo.2017.07.002) are lower than the regional mean rate of SLR and are not to be believed as these wetlands should have converted to open water by now. We reject these contentions because: (1) no density correction was applied to the cores in this study, (2) local tide gauge records and analyses in the literature support an increase in SLR rates coinciding with the timeframe of our OC burial records, and (3) Parkinson's comparison of the 100‐yr mean rate of SLR neglects temporal variability and uncertainties in the long‐term sea‐level record, as well as biophysical feedbacks between wetland surface elevation and SLR. Here, we provide detailed responses to Parkinson's contentions and establish the importance of differentiating operational definitions of OC burial and accretion to clarify why an auto‐compaction correction is not applicable for OC burial measurements.

中文翻译：

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R. Parkinson对J. Breithaupt等人的“增加西南佛罗里达沿海湿地的碳埋藏率”的评论。

Breithaupt等。（2020，https://doi.org/10.1029/2019JG005349）研究了为什么在过去约120年中沿海湿地中的有机碳（OC）埋葬率似乎有所增加。在比较了测年方法并应用了生物地球化学分析后，我们得出结论，测年方法和碳降解均无助于观察到的趋势。相反，我们得出的结论是，在过去的一个世纪中，OC埋葬有所增加。帕金森（2021）的评论不同意我们的结论，认为：（1）使用密度校正来解决土壤自动压实是一种有缺陷的方法，人为地缩短了岩心的长度，（2）有限的证据表明可以加速岩心的长度。 Breithaupt等人在先前的论文中提到了区域海平面上升（SLR）率和（3）垂直积聚率。（2014，https://doi.org/10.1002/2014JG002715; 2017，https：//doi.org/10.1016/j.margeo.2017.07.002）低于SLR的区域平均率，因此不被认为是因为这些湿地现在应该已经转变为开放水域。我们拒绝这些争论是因为：（1）在这项研究中未对密度进行校正，（2）局部潮汐仪记录和文献分析都支持与我们的OC埋葬记录时间框架相符的SLR率增加，以及（3）帕金森对100年平均单反率的比较忽略了长期海平面记录中的时间变异性和不确定性，以及湿地表面海拔和单反之间的生物物理反馈。在这里，我们对帕金森