Spatial distribution law of landslides and landslide susceptibility assessment in the Eastern Himalayan Syntaxis Region

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-06-07 DOI:10.1144/qjegh2023-144

Yu-long Cui, Chen Chen, Lulu Zhu, Chong Xu, Ming Xu, Jun Zheng

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Abstract

The eastern Himalayan syntaxis region is located on the eastern edge of the Qinghai-Tibet Plateau, and it's one of the regions with the most intense geological tectonic activity in the world. There have been many large-scale landslides in the eastern Himalayan syntaxis region and the distribution of these landslides is of great significance for the inversion of regional tectonic activity strength, major engineering construction, and urban-rural planning. However, no researchers have systematically studied all these landslides of this area. First, based on Google Earth satellite imagery, landslides were identified using artificial visual interpretation. Second, 11 landslide-influencing factors were selected, comprising topographic factors (elevation, slope, aspect, curvature), geological environmental factors (strata, distance to faults, distance to waters, distance to roads, normalized difference vegetation index), inducing factors (peak ground acceleration, rainfall), the relationships between the distribution law of landslides and influencing factors were analyzed. Finally, the logistic regression model (LR), the weight of evidence model (WoE), and the weight of evidence- logistic regression (WoE–LR) coupled model were used to evaluate the landslide susceptibility.

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东喜马拉雅综合区滑坡的空间分布规律和滑坡易发性评估

喜马拉雅山脉东段位于青藏高原东部边缘，是世界上地质构造活动最强烈的地区之一。喜马拉雅山东侧综合区曾发生过多次大规模滑坡，这些滑坡的分布对区域构造活动强度反演、重大工程建设和城乡规划具有重要意义。然而，目前还没有研究人员对这一地区的所有滑坡进行过系统研究。首先，在谷歌地球卫星图像的基础上，通过人工目视判读对滑坡进行识别。其次，选取了 11 个滑坡影响因素，包括地形因素（海拔、坡度、坡向、曲率）、地质环境因素（地层、断层距离、水域距离、道路距离、归一化差异植被指数）、诱导因素（峰值地面加速度、降雨量），分析了滑坡分布规律与影响因素之间的关系。最后，采用逻辑回归模型（LR）、证据权重模型（WoE）和证据权重-逻辑回归耦合模型（WoE-LR）对滑坡易发性进行了评价。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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