中文摘要：

“4·25”尼泊尔地震诱发西藏聂拉木县大量的次生山地灾害,灾害主要类型包括崩塌、滑坡、泥石流和不稳定斜坡等。这些次生灾害不仅造成了人员伤亡,对中尼公路（G318线）的安全运营及沿线主要城镇居民点聂拉木镇、樟木镇（口岸）也造成了严重影响。地震诱发的大量崩塌、滑坡为泥石流活动提供了丰富的物源,将促进泥石流活跃,在后期暴雨作用下产生严重的泥石流灾害。通过初步分析得出：（1）聂拉木“4·25”地震次生山地灾害点计221处,分布于聂拉木县5个乡镇,其中有滑坡10处、崩塌159处、泥石流沟26条、不稳定斜坡26处。（2）聂拉木（边检站以下）—樟木—友谊桥—带以滑坡、崩塌灾害为主;聂拉木（边检站以上）—亚来乡—达弟以崩塌、泥石流为主、滑坡为次;希夏邦马峰东侧以冰川泥石流为主。最后,结合区域的地形、地质构造、气象条件提出了地震区恢复重建中的防灾减灾对策。

英文摘要：

Extraordinary earthquake disasters were caused by the ＂4 · 25＂ Nepal earthquake, and meanwhile a great number of secondary mountain disasters whose main types include collapse, landslide, debris flow, unstable slope, etc. were induced by the earthquake. These secondary mountain disasters not merely resulted in heavy casualties but also seriously affected safety operation of the China-Nepal highway （Line G318） and Nyalam Town, Zhangmu Town （port）. Large quantities of collapses and landslides induced by the earthquake supplied debris flow with abundant material sources which is a big stimulus to yielding catastrophic debris flow hazards under heavy rain in the later days. The results are as follows through preliminary analysis ： （ 1 ） there are 221 secondary mountain disasters induced by the ＂4 · 25＂ Nepal earthquake including 10 landslides, 159 collapses, 26 debris flows, 26 unstable slopes in the Nyalam County, and these secondary mountain disasters are distributed in five towns. （2） Regional disasters is given priority to with landslide, collapse along Nyalam town to Friendship Bridge; Regional disasters is given priority to with collapse, debris flow along Nyalam town and Yalai town to Dadi; Finally, disaster prevention and mitigation measures of restoration and reconstruction in the earthquake zone are proposed combined with the topography, geological structure, and meteorological conditions of the region.