Recent research in Umbria, Italy, has shown that landslide susceptibility is controlled by a process called path-dependency, which describes how past landslides control the locations of future landslides. To date, landslide path-dependency has only been characterised in Italy. This raises the question of whether this process occurs in other geomorphic settings, and thus whether path-dependency should be more universally included in landslide susceptibility assessments. Therefore, the main aim of this paper is to investigate and quantify landslide path dependency in the Nepal Himalaya. This is achieved by applying several path dependent metrics to three monsoon-triggered landslide inventories for the central-eastern Nepal Himalaya. These inventories were developed at two different spatial and temporal resolutions. As such, we aim not just to quantify landslide path-dependency, but also to assess whether path dependency characteristics are resolution-dependent. We find strong evidence that landslide path dependency is occurring in Nepal, with all three inventories having more overlap between past and new landslides than expected from a random distribution, and a tentative observation that the expected degree of overlap between landslides decreases with time. Finally, whilst path-dependency is observable across both of the investigated inventory resolutions, we find that the rates and magnitudes of the quantified path dependent metrics are sensitive to inventory length, study region size and the size/type of landslides mapped. Overall, our results corroborate the path-dependency observations from Italy, confirming that this process does occur in other geomorphic settings, and thus suggesting that path-dependency should be explicitly and universally considered in landslide susceptibility approaches.

最近在意大利翁布里亚进行的研究表明，滑坡的易感性是由一个称为路径依赖的过程控制的，该过程描述了过去的滑坡如何控制未来滑坡的位置。迄今为止，滑坡路径依赖性仅在意大利得到表征。这就提出了这个过程是否发生在其他地貌环境中的问题，因此路径依赖性是否应该更普遍地包括在滑坡敏感性评估中。因此，本文的主要目的是调查和量化尼泊尔喜马拉雅山滑坡路径依赖性。这是通过对尼泊尔中东部喜马拉雅山的三个季风触发的滑坡清单应用几个路径相关指标来实现的。这些清单是在两种不同的空间和时间分辨率下开发的。像这样，我们的目标不仅是量化滑坡路径依赖性，还要评估路径依赖性特征是否与分辨率有关。我们发现强有力的证据表明尼泊尔正在发生滑坡路径依赖性，所有三个清单在过去和新滑坡之间的重叠比随机分布的预期要多，并且初步观察到滑坡之间的预期重叠程度随着时间的推移而减少。最后，虽然在两个调查的清单解决方案中都可以观察到路径依赖性，但我们发现量化路径相关度量的速率和幅度对清单长度、研究区域大小和绘制的滑坡大小/类型敏感。总的来说，我们的结果证实了来自意大利的路径依赖观察，