Exploring drought‐to‐flood interactions and dynamics: A global case review
Exploring drought‐to‐flood interactions and dynamics: A global case review
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DOI：
10.1002/wat2.1726
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发表时间：
2024-02
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通讯作者：
M. Barendrecht;A. Matanó;Heidi Mendoza;Ruben Weesie;M. Rohse;J. Koehler;Marleen C. de Ruiter;Margaret Garcia;M. Mazzoleni;Jeroen C. J. H. Aerts;Philip J. Ward;G. di Baldassarre;Rosie Day;Anne F. Van Loon
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文献类型：
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作者：
M. Barendrecht;A. Matanó;Heidi Mendoza;Ruben Weesie;M. Rohse;J. Koehler;Marleen C. de Ruiter;Margaret Garcia;M. Mazzoleni;Jeroen C. J. H. Aerts;Philip J. Ward;G. di Baldassarre;Rosie Day;Anne F. Van Loon
这项研究综合了当前对旱涝事件(即连续的旱涝事件)背后的水文、影响和适应过程的理解，以及它们如何相互作用。基于对文献的分析和对历史案例的全球评估，我们展示了干旱如何影响洪水风险，并评估在什么情况下干旱与洪水的相互作用可以导致风险的增加或降低。我们对水文、社会经济和适应进程进行了区分。水文过程包括蓄水和径流过程，当干旱是多年事件时和干旱期间发生洪水时，这两个过程似乎都主要发挥作用。然而，哪个过程在何时何地起主导作用，以及这一过程如何受到人为干预的影响，还需要进一步研究。对与社会经济影响有关的过程的研究少于对水文过程的研究，但总的来说，脆弱性的变化似乎在增加或减少旱灾对洪水的影响方面发挥了重要作用。此外，有证据表明，与干旱或洪水事件本身相比，旱涝事件造成的水质问题增加。适应既影响水文过程(例如，通过开采地下水)，也影响社会经济过程(例如，影响脆弱性)。适应的例子很多，但关于某些过程何时何地发生以及为什么发生的证据有限。总体而言，对旱涝事件的研究很少。为了增进我们对旱涝事件的了解，我们需要对潜在的水文、社会经济和适应过程及其相互作用以及导致某些过程占主导地位的环境进行更全面的研究。
This study synthesizes the current understanding of the hydrological, impact, and adaptation processes underlying drought‐to‐flood events (i.e., consecutive drought and flood events), and how they interact. Based on an analysis of literature and a global assessment of historic cases, we show how drought can affect flood risk and assess under which circumstances drought‐to‐flood interactions can lead to increased or decreased risk. We make a distinction between hydrological, socio‐economic and adaptation processes. Hydrological processes include storage and runoff processes, which both seem to mostly play a role when the drought is a multiyear event and when the flood occurs during the drought. However, which process is dominant when and where, and how this is influenced by human intervention needs further research. Processes related to socio‐economic impacts have been studied less than hydrological processes, but in general, changes in vulnerability seem to play an important role in increasing or decreasing drought‐to‐flood impacts. Additionally, there is evidence of increased water quality problems due to drought‐to‐flood events, when compared to drought or flood events by themselves. Adaptation affects both hydrological (e.g., through groundwater extraction) or socio‐economic (e.g., influencing vulnerability) processes. There are many examples of adaptation, but there is limited evidence of when and where certain processes occur and why. Overall, research on drought‐to‐flood events is scarce. To increase our understanding of drought‐to‐flood events we need more comprehensive studies on the underlying hydrological, socio‐economic, and adaptation processes and their interactions, as well as the circumstances that lead to the dominance of certain processes.