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首页> 外文期刊>Hydrological sciences journal >Hydrological impact of forest-fire from paired-catchment and rainfall-runoff modelling perspectives
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Hydrological impact of forest-fire from paired-catchment and rainfall-runoff modelling perspectives

机译:从成对集水和降雨径流模型的角度看森林火灾的水文影响

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This study deals with the Rimbaud catchment, a sub-catchment within the Real Collobrier hydrological observatory in southeastern France, managed by Irstea since 1966. This observatory suffered a wildfire in 1990. Because of the dense network of streamgauges and raingauges available, this site provides a unique opportunity to test and compare two types of analysis, one based on paired catchments and the other a rainfall-runoff model, used to assess the hydrological impact of forest fire. In the present case, more than 20years of pre-fire and post-fire data are available. We compare the ability of the two approaches to detect gradual changes at a daily time step. This case study illustrates how natural climatic variability (here a long drought which preceded the wildfire) can make the identification of hydrological changes extremely difficult.
机译:这项研究涉及的是Rimbaud流域,该流域是法国东南部Real Collobrier水文观测站的一个子集水区,自1966年以来由Irstea管理。该观测站于1990年遭受野火。由于可用的密集的水位计和雨量计网络,该站点提供了一个独特的机会来测试和比较两种类型的分析,一种基于成对的流域,另一种是降雨径流模型,用于评估森林火灾的水文影响。在目前的情况下,有超过20年的火灾前和火灾后数据。我们比较了这两种方法在日常时间步长中检测逐渐变化的能力。该案例研究说明了自然的气候变化(此处是野火之前的长期干旱)如何使识别水文变化极其困难。

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