Landslides are common disturbances in forests around the world, and a major threat to human life and property. Landslides are likely to become more common in many areas as storms intensify. Forest vegetation can improve hillslope stability via long, deep rooting across and through failure planes. In the U.S. Rocky Mountains, landslides are infrequent but widespread when they do occur. They are also extremely understudied, with little known about the basic vegetation recovery processes and rates of establishment which restabilize hills. This study presents the first evaluation of post‐landslide vegetation recovery on forested landslides in the southern Rocky Mountains. Six years after a major landslide event, the surveyed sites have very little regeneration in initiation zones, even when controlling for soil coverage. Soils are shallower and less nitrogen rich in initiation zones as well. Rooting depth was similar between functional groups regardless of position on the slide, but deep‐rooting trees are much less common in initiation zones. A lack of post‐disturbance tree regeneration in these lower elevation, warm/dry settings, common across a variety of disturbance types, suggests that complete tree restabilization of these hillslopes is likely to be a slow or non‐existent, especially as the climate warms. Replacement by grasses would protect against shallow instabilities but not the deeper mass movement events which threaten life and property.

中文翻译：

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干旱的山区系统中滑坡后土壤和植被的恢复缓慢且斑驳

滑坡是全世界森林中常见的干扰，是对人类生命和财产的重大威胁。随着风暴的加剧，滑坡可能在许多地区变得更加普遍。森林植被可以通过横穿并通过破坏面的长而深的生根来提高山坡的稳定性。在美国落基山脉，发生滑坡的情况很少见，但发生时却很普遍。对它们的研究也极少，对使山丘恢复稳定的基本植被恢复过程和建立速度知之甚少。这项研究提出了对落基山脉南部森林滑坡的滑坡后植被恢复的首次评估。重大滑坡事件发生六年后，即使控制土壤覆盖率，被调查地点的起初带也很少再生。土壤较浅，起始区域的氮含量也较低。无论在幻灯片上的位置如何，各功能组之间的生根深度都相似，但是在启动区域中，根深蒂固的树很少见。在这些低海拔，温暖/干燥的环境中，缺乏干扰后树木的再生，这在各种干扰类型中都很常见，这表明这些山坡的树木完全恢复原状可能是缓慢的或不存在的，尤其是在气候变暖时。用草代替可以防止浅层的不稳定，但不能保护威胁生命和财产的更深层次的群众运动。在这些低海拔，温暖/干燥的环境中，缺乏干扰后树木的再生，这在各种干扰类型中都很常见，这表明这些山坡的树木完全恢复原状可能是缓慢的或不存在的，尤其是在气候变暖时。用草代替可以防止浅层的不稳定，但不能保护威胁生命和财产的更深层次的群众运动。在这些低海拔，温暖/干燥的环境中，缺乏干扰后树木的再生，这在各种干扰类型中都很常见，这表明这些山坡的树木完全恢复原状可能是缓慢的或不存在的，尤其是在气候变暖时。用草代替可以防止浅层的不稳定，但不能保护威胁生命和财产的更深层次的群众运动。