Abstract We compile detrital 10Be concentrations of Alpine rivers, representing the denudation rates pattern for 375 catchments across the entire European Alps. Using a homogeneized framework, we employ state-of-the-art techniques for inverting in-situ 10Be concentrations into denudation rates. From our compilation, we find that (i) while lithologic properties and precipitation/runoff do influence erosion mechanisms and rates at the scale of individual catchments and in some specific Alpine regions, such controls do not directly stand for the entire Alps, (ii) as also previously suggested, catchment-wide denudation rates across the entire European Alps closely follow first-order Alpine topographic metrics at the scale of individual catchments or selected Alpine sub-regions. However, in addition to previous local-scale studies conducted in the European Alps, our large-scale compilation highlights a functional relationship between catchment-wide denudation and mean catchment slope angle. Catchment-wide denudation positively correlates with mean catchment slope up to a threshold angle (25–30°). Above this threshold, any correlation between catchment-wide denudation and slope as well as other catchment metrics breaks apart. We can reconcile these systematic patterns by proposing a regional erosion model based on diffusive-transport laws for catchments located below the slope threshold angle. In oversteepened catchments situated above-threshold slopes, erosion is stochastic in nature, as glacial carving likely caused a partial decoupling between hillslope and fluvial domains with complex topographic relationships and sediment connectivity patterns. Finally, we identify a first-order positive relationship between modern geodetic rock uplift and catchment-wide denudation for the European Alps. The observed spatial pattern is highly variable and possibly reflects the surface response to deep geodynamic mechanisms prevailing in the different Alpine regions. We conclude that today's topography and geomorphic features of the entire Alps are the result of a millenial-scale geomorphic response to past glacial processes and active rock uplift, highlighting a link between external and internal drivers for mountain erosion.

中文翻译：

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整个欧洲阿尔卑斯山晚更新世流域范围内的剥蚀模式

摘要 我们编制了阿尔卑斯河流的碎屑 10Be 浓度，代表了整个欧洲阿尔卑斯山 375 个集水区的剥蚀率模式。使用均质化框架，我们采用最先进的技术将原位 10Be 浓度转化为剥蚀率。从我们的汇编中，我们发现（i）虽然岩性和降水/径流确实会影响单个集水区和某些特定高山地区的侵蚀机制和速率，但这种控制并不直接代表整个阿尔卑斯山，（ii）如前所述，整个欧洲阿尔卑斯山的流域范围内的剥蚀率密切遵循单个流域或选定的高山子区域规模的一阶高山地形指标。然而，除了之前在欧洲阿尔卑斯山进行的局部规模研究之外，我们的大规模汇编还强调了流域范围内的剥蚀与流域平均坡度之间的函数关系。流域范围内的剥蚀与达到阈值角 (25–30°) 的平均流域坡度呈正相关。在这个阈值之上，流域范围内的剥蚀和坡度以及其他流域指标之间的任何相关性都会破裂。我们可以通过针对位于坡度阈值角以下的集水区提出基于扩散传输规律的区域侵蚀模型来协调这些系统模式。在位于阈值以上斜坡的陡峭集水区，侵蚀本质上是随机的，因为冰川雕刻可能导致具有复杂地形关系和沉积物连通性模式的山坡和河流域之间的部分脱钩。最后，我们确定了现代大地岩石隆起与欧洲阿尔卑斯山流域范围内的剥蚀之间的一阶正相关关系。观测到的空间格局变化很大，可能反映了对不同高山地区普遍存在的深层地球动力学机制的表面响应。我们得出的结论是，今天整个阿尔卑斯山的地形和地貌特征是对过去冰川过程和活动岩石隆升的千年尺度地貌响应的结果，突出了山地侵蚀的外部和内部驱动因素之间的联系。我们确定了现代大地岩石隆起与欧洲阿尔卑斯山流域范围内的剥蚀之间的一阶正相关关系。观测到的空间格局变化很大，可能反映了对不同高山地区普遍存在的深层地球动力学机制的表面响应。我们得出的结论是，今天整个阿尔卑斯山的地形和地貌特征是对过去冰川过程和活动岩石隆升的千年尺度地貌响应的结果，突出了山地侵蚀的外部和内部驱动因素之间的联系。我们确定了现代大地岩石隆起与欧洲阿尔卑斯山流域范围内的剥蚀之间的一阶正相关关系。观测到的空间格局变化很大，可能反映了对不同高山地区普遍存在的深层地球动力学机制的表面响应。我们得出的结论是，今天整个阿尔卑斯山的地形和地貌特征是对过去冰川过程和活动岩石隆升的千年尺度地貌响应的结果，突出了山地侵蚀的外部和内部驱动因素之间的联系。