The Impact of Bamboo on Rainfall-Triggered Landslide Distribution at the Regional Scale: A Case Study from SE China

• DOI: 10.3390/f15122223
• Publication Date: 2024-12-17T10:26:02Z
• Authors: Zizheng Guo; Zhanxu Guo; Chunchun Wen; Gang Xu; Yuhua Zhang; Hao Zhang; Haiyan Qin; Yuzhi Zhang; Jun He
• Keywords: 0211 other engineering and technologies; 02 engineering and technology

It is widely accepted that land use and cover (LULC) an important conditioning factor for landslide occurrence, especially when considering the role of tree roots in stabilizing slopes consolidating soil. However, it still difficult to assess impacts a specific LULC type on distribution. The objective present study reveal relationship between bamboo distribution at regional scale. We aim answer following question: do areas covered by have higher susceptibility landslides? Wenzhou City SE China was taken as area, inventory containing 1725 shallow landslides constructed. generalized additive model (GAM) employed significance nine additional factors, all which were generated using GIS platform. frequency ratio (FR) method used analyze compare density each category. Machine learning models applied perform mapping region. results show region, second most occurrences after slope factor, whereas has relatively FR value than other categories. accuracies maps obtained from random forest XGBoost 79.6% 85.3%, respectively. Moreover, 23.8% 25.5% bamboos distributed very-high- high-susceptibility-level areas. incidents significantly those with debris flow rock collapses, indicating promotional effect failure area. This work will improve our understanding regarding geological ecological conditions affect stability, may provide useful guidance planning risk assessment mitigation