青海西宁南北山滑坡、崩塌成因及影响分析

近年来，随着青藏高原暖湿化加剧，降雨量及极端降雨天气增多等原因，西宁市南北山地质灾害呈多发群发、逐年增长态势，尤其是滑坡、崩塌灾害，造成了严重的人员伤亡和经济损失，严重威胁西宁市区居民、基础设施、绿化设施安全。为积极应对南北山地质灾害严峻形势，保障居民生活生产安全，巩固已有来之不易的绿化成果，深入分析了西宁市南北山近18年以来地质灾害发生情况、分布规律及影响因素，提出了南北山地质灾害重点预防时期、重点防范区域、对绿化区的影响及后期防治建议。

Causes and influential factor analysis of landslides and rockfalls in north & south mountain areas of Xining City,Qinghai Province

In recent years, with the aggravation of warming and humidification in the Qinghai-Tibet Plateau, regional rainfall increase and extreme rainfall weather happened frequently, unexpected geo-hazards in North & South Mountains area of Xining City are frequently and massively increasing year by year, especially the landslide and collapse disasters, which cause serious casualties and economic losses, and seriously threaten the safety of residents, infrastructure and greening facilities in Xining City. In order to actively deal with the severe geo-hazards situation in the area, ensure the safety of residents' life and consolidate the hard-won greening achievements, the occurrence, distribution and influence factors of geo-hazards in the area in the past 18 years are analyzed deeply, the key prevention period, key prevention area, influence on green area and later prevention suggestions are put forward.