The Most Important Hydro-Environmental Drivers Affecting Gully Erosion Occurrence Through Wrapper Methods

B. Choubin, Omid Rahmati, Seyed Masoud Soleimanpour, S. Shadfar, Ahmad Najafi Igdir
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Abstract

This study aimed to draw connections between gully erosion occurrences and hydro-environmental factors in watershed areas that illustrate relationships. For this aim, feature elimination methods help diagnose the most key drivers. So, three Wrapper methods of Sequential Forward Selection (SFS), Sequential Backward Selection (SBS), and Exhaustive Feature Selection (EFS) were taken to account for feature extraction, by considering the Random Forest model as an estimator. Considering the results of the models, the most important identified variables were aspect, drainage density, elevation, distance to road, landuse, and slope. The outcomes of this research procure insights for watershed managers to know how should face gully erosion.
通过包裹法研究影响沟蚀发生的最重要的水环境驱动因素
本研究旨在找出流域沟沟侵蚀发生与水环境因子之间的联系。为了达到这个目的,特征消除方法有助于诊断最关键的驱动因素。因此,考虑随机森林模型作为估计器,采用顺序前向选择(SFS)、顺序后向选择(SBS)和穷举特征选择(EFS)三种包装方法进行特征提取。考虑到模型的结果,最重要的确定变量是坡向、排水密度、高程、与道路的距离、土地利用和坡度。本研究的结果为流域管理者了解应该如何面对沟壑侵蚀提供了见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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