基于地理探测器的元阳梯田地质灾害影响因素及滑坡成因分析

doi:10.19388/j.zgdzdc.2024.03.12

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Abstract Due to its unique geographical location, surface vegetation, and agricultural culture, Yuanyang terraced fields have been frequently affected by surface geological disasters, causing great damage to their ecological and cultural value. Therefore, the prevention and control of geological disasters in the terraced areas is particularly crucial. On the basis of detailed field investigations, combined with 15 m resolution remote sensing image data from Yuanyang terraced fields, the authors conducted a detailed study on the factors affecting geological disasters in this area using ArcGIS spatial overlay analysis and geographic detectors. The results show that the amount of landslides accounts for 93.39% and the amount of small-scale disasters accounts for 87.69% in Yuanyang terrace fields. Overall, it is mainly characterized by small-scale disasters with landslide as the main type. The main influencing factors of geological disaster points in the study area are topographic slope, followed by geological structure and the geomorphic unit. The influencing factors of geological disasters are complex, and strong river erosion, crustal uplift, active fault tectonic activity are the main geological environment factors. Besides, abundant rainfall and human engineering activities are the main inducing factors. The influencing factors and causes of geological disasters in Yuanyang terraced fields were identified through this research, which could better promote improving the local disaster prevention and reduction system, and also provide certain references for regional geological disaster risk analysis, investigation and evaluation projects.

Key words： Yuanyang terraced fields geological disaster geographic detector influencing factors genetic mechanism

Received: 15 November 2023

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	Articles by authors
	SU Hang
	LU Nandi
	FU Xiaoshuang
	LI Qi

Cite this article:

SU Hang,LU Nandi,FU Xiaoshuang, et al. Analysis on the influencing factors of geological disasters and causes of landslide in Yuanyang terraced fields based on geographical detectors[J]. , 2024, 11(3): 92-100.

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http://journal25.magtechjournal.com/Jwk_dzdc/EN/10.19388/j.zgdzdc.2024.03.12 OR http://journal25.magtechjournal.com/Jwk_dzdc/EN/Y2024/V11/I3/92

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