Lininger Katherine B, Lave Rebecca
Department of Geography at the University of Colorado Boulder, Boulder, Colorado, United States.
Indiana University Bloomington, Bloomington, Indiana, United States.
Bioscience. 2024 Sep 10;74(10):717-724. doi: 10.1093/biosci/biae083. eCollection 2024 Oct.
Increasing organic carbon storage in river corridors (channels and floodplains) is a potential cobenefit of some river restoration approaches, raising the possibility of using restoration to produce carbon credits and, therefore, increase restoration funding. However, the uncertainty already associated with existing carbon credits is compounded in river corridors, which are dynamic on daily, seasonal, annual, and longer timescales. We currently do not know how much river restoration approaches could increase carbon storage or how significant increased organic carbon storage from restoration would be compared with other forms of climate mitigation. We also do not know whether river corridor carbon credits could meet market needs for quickly established, stable, and simple credits. Therefore, we argue that biophysical and political economic uncertainties make river corridor restoration carbon credits currently unfeasible but that research on river restoration projects would demonstrate whether restoration carbon credits could be feasible in the future.
增加河流廊道（河道和洪泛区）中的有机碳储量是一些河流修复方法可能带来的共同效益，这增加了利用修复来产生碳信用额度从而增加修复资金的可能性。然而，与现有碳信用额度相关的不确定性在河流廊道中更加复杂，因为河流廊道在每日、季节、年度和更长的时间尺度上都是动态变化的。我们目前尚不清楚河流修复方法能在多大程度上增加碳储量，也不清楚与其他气候缓解形式相比，修复带来的有机碳储量增加有多显著。我们同样不知道河流廊道碳信用额度是否能满足市场对快速建立、稳定且简单的信用额度的需求。因此，我们认为生物物理和政治经济方面的不确定性使得目前河流廊道修复碳信用额度不可行，但对河流修复项目的研究将证明修复碳信用额度在未来是否可行。
