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Effects of Topography on Vegetation Recovery after Shallow Landslides in the Obara and Shobara Districts, Japan by Chenxi Zhong; Takashi Oguchi; Roxanne Lai is a Environmental Science article available to read on EtoBox.

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Intense rainfall-induced shallow landslides can have severe consequences, including soil erosion and vegetation loss, making in-depth research essential for disaster risk management. However, vegetation recovery processes after shallow landslides and their influencing multivariate factors are not well known. This study aims to address this gap by investigating the vegetation recovery processes after shallow landslides and the impact of topography on this recovery. We focus on two regions in Japan: the Shobara district in Hiroshima Prefecture and the Obara district in Aichi Prefecture. The Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) derived from long-term Landsat images, as well as aerial photographs and environmental datasets, are used to measure vegetation recovery. Then, statistical analysis and the Seasonal Autoregressive Integrated Moving Averages (SARIMA) model were employed to investigate the dynamic response of vegetation under different combinations of environmental conditions using NDVI and EVI time series. Historical aerial photographs and vegetation index trend analysis suggest that vegetation in the study areas will take more than t

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Author

Chenxi Zhong; Takashi Oguchi; Roxanne Lai

Publisher

MDPI AG

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)