地理空间信息2025，Vol.23Issue(4)：79-82,104,5.DOI:10.3969/j.issn.1672-4623.2025.04.017
改进频率比法的怒江中游滑坡易发性评价
Landslide Susceptibility Evaluation in the Middle Reaches of the Nu River Based on Improved Frequency Ratio Method
摘要
Abstract
Due to the collision of the Indian plate with the Eurasian Plate,the Nu River basin is characterized by intense tectonic activities and frequent geological hazards.Taking the middle reaches of the Nu River as the research area,we used an improved frequency ratio method(IF-RM)to evaluate the susceptibility of landslides.The main conclusions show that ① IFRM reduces the discontinuity of landslide susceptibility in-dex compared with traditional methods,and makes the evaluation of landslide susceptibility more efficient and accurate.②The extremely high/high susceptible zones of landslides are concentrated in the deep-cut areas of main stream and major tributaries of the Nu River,especially in the high mountain gorge areas,south of Basu.③Some of the extremely high/high susceptible zones are located in artificial impermeable surfaces and roads.The frequency of landslides increases significantly with the disturbances by engineering constructions.The susceptibility evaluation of landslides at a regional scale in the middle reaches of the Nu River is of great importance for landslide risk management.关键词
青藏高原/怒江中游/滑坡/易发性评价/改进频率比法Key words
Tibetan Plateau/the Nu River basin/landslide/susceptibility evaluation/IFRM分类
天文与地球科学引用本文复制引用
兰明易,田乃满,刘世杰,李郎平,孙巍锋..改进频率比法的怒江中游滑坡易发性评价[J].地理空间信息,2025,23(4):79-82,104,5.基金项目
国家自然科学基金重大专项项目(42041006). （42041006）
