The slopes of the Champagne vineyards are regularly affected by landslides. Given the high societal and economic stakes, these processes cause significant damage and pose a major challenge for the wine industry, forestry and heritage preservation. Numerous studies have already been conducted to understand their behavior and hydrodynamic functioning. They show varied morphologies and a dominant influence of water resources. However, this forcing does not explain the spatial distribution of current landslides, which occur in upper-slope positions, on the steepest terrain recently planted with vines. Using the two shallow landslides at Reuil, located in the heart of the Marne Valley in the Champagne vineyards, as a study site, recent landslide activity is analyzed through a comparative analysis of three DTMs derived from LiDAR HD data and two UAV photogrammetric surveys. This study reveals the affected areas and displaced volumes, which can reach up to 900 m3. Landslide activity was then correlated with regional climatic data. This research shows that landslides are more likely to occur during a period of excessive rainfall following a drier period. Diachronic analysis of aerial images also demonstrates the influence of land use on landslide activity. In particular, land clearing and vineyard operations on the steepest plots constitute a significant anthropogenic forcing affecting slope stability. Taken together, these results provide greater insight into the changing geomorphological dynamics of the Champagne vineyards. On the one hand, they clarify how landslides occur at vineyard plot scale. On the other hand, they provide initial insights into the resilience of stakeholders (winegrowers, etc.) affected by these instabilities.
This study presents a UAV-based methodology for monitoring slow-moving landslides using high-resolution data. The case study is the Pietrapertosa earthflow in the Southern Apennines, which showed intermittent activity and impacted a critical road network. The investigation involved nine drone surveys from 2022 to 2025, enabling the development of high-resolution orthoimages and DEMs, analysed to quantify the spatial and temporal evolution of the landslide. The data comparison showed that landslide activity concentrated within the central area, with minimal changes in its perimeter. Within the active area, the complex evolution of the scarp-terrace systems was investigated, enabling the estimation of displacement rates ranging from 7.28 m/month after reactivation to 0.08 m/month during the current resting phase. Additionally, the different DEM models were quantitatively compared to identify the main erosion and deposition areas within the landslide, thus allowing the estimation of the total mobilised volume. The applied methodology provides an example of large, slow-moving landslide monitoring, transferable to similar cases where the velocities are too high for satellite images and field instruments. The high-resolution monitoring of such complex processes can offer critical information to prevent their impact on vulnerable infrastructure and to optimise the planning of the mitigation strategies.
A. Santo, E. Marino, E. Valente et al.· Landslides· 1 citation
The landscape of Southern Italy is widely affected by landslide processes of different types, sizes and ages, which locally play an important role in the landscape evolution, slope evolution, and sediment mobility of different sectors of the belt. We perform a statistical analysis of a landslide inventory map that covers the administrative territory of Basilicata, southern Italy, aimed at the investigation of the interplay between landslide distribution and lithological and geomorphological factors. Statistical analysis of the landslide inventory map and the comparison with geothematic maps and landscape metrics provide new insights into both the main predisposing factors of landslide processes and the role of long-term morphotectonic evolution on the landslide pattern. Our results indicate a total landslide density of about 7% across the study area, with a predominance of slow-moving landslides and a highly clustered, non-random spatial distribution. Landslide-dominated landscapes, characterized by the superimposition of large deep-seated and smaller, shallow landslides, are also widespread. Analysis of the relationships between landslide patterns and metrics of landscape evolution indicates that lithological and topographic characteristics alone cannot account for the preferential occurrence of landslides in these morphotectonic domains, pointing instead to a significant role of tectonically induced landscape disequilibrium in controlling landslide distribution.
D. Gioia, G. Corrado, Lucia Contillo et al.· Natural Hazards· 0 citations
Folkestone Warren is a coastal landslide formed of Chalk and Gault strata located between Folkestone and Abbots Cliff over which the railway from London to Dover runs. Since a major slip that occurred in 1915, the area has been the subjected to extensive ground investigations, stabilisation measures and monitoring which over time has led to further refinement of the ground model for the landslide. This paper provides a summary of that development and outlines the current understanding into the complex arrangement of slips forming the Warren based on the nature of movements established by survey points and laser scanning techniques within the Warren for the period 1962 to 2024 and from the results from real-time monitoring at Warren Halt recorded since 2016. Minor ongoing movements, subsidence and cracking of the High Cliff have also been observed along the Old Dover Road in the vicinity of the Caravan Park, Capel Village and a possible reason for such movements is outlined.
C. Warren, I. Anderson, D. Butcher et al.· Quarterly journal of enginee...· 0 citations
This study aims to analyze the influence of geomorphological units on land use and land cover changes within the Environmental Protection Area of Rio Pandeiros basin, located in northern Minas Gerais, Brazil, in the years 1985, 2000, 2010, and 2024. The present research stems from the need to understand how relief conditions the dynamics of land occupation in protected areas within the Cerrado biome. The methodological approach integrated geomorphological mapping based on morphometric variables derived from the SRTM Digital Elevation Model (DEM) and supervised classification of Landsat imagery using the Random Forest algorithm, and incorporating spectral and topographic covariates. The results indicated high model performance, with strong classification accuracy across all years analyzed. It was observed that anthropogenic transformations were predominantly concentrated in flat relief areas, especially in structural bencheslateau, where pasture emerged as the main anthropogenic class, increasing from 22.99% of the area in 1985 to 26.92% in 2024. In contrast, more dissected compartments showed greater conservation of native vegetation. The findings suggest that geomorphology plays a determining role in the spatial organization of land uses, constituting an essential variable for territorial planning and management in conservation units.
Wallace Vinicius Martins Ruas, Lucas Augusto Pereira da Silva, Aldenice Barbosa Alves et al.· Caminhos de Geografia· 0 citations
River ecosystems play a key role in both natural and urbanized environments, acting as essential links in ecological systems. However, they are increasingly exposed to the synergistic effects of anthropogenic pressure and hydrological instability. This study aims to identify and assess changes in land use and their impact on the phytosociological structure and functioning of ash-alder (Fraxino-Alnetum) patches in floodplains. Based on cartographic analyses (1941, 1961, 2025) and detailed geobotanical surveys (2024–2025) conducted at six representative sites, the spatio-temporal dynamics of land use and vegetation habitat conditions were evaluated using ecological indicator values. The results indicate a substantial landscape transformation: a transition from areas dominated by agricultural and forest ecosystems to zones heavily altered by urban expansion, transport infrastructure, and industrialization. Phytosociological analyses show that while species richness remains relatively stable, floristic composition is changing due to hornbeam succession and the emergence of mesophilous species. The presence of non-native species indicates ongoing anthropization in plant patches. Furthermore, hydromorphological modifications, including bank reinforcement and channel deepening in the vicinity of sports and railway infrastructure, have hindered natural river dynamics and accelerated floodplain drainage. The observed changes indicate that ash-alder forests in the Biała Przemsza valley are in a transitional phase between riparian and oak-hornbeam communities, with a clear oak-hornbeam transformation evident in many areas, driven by changes in water relations. This study highlights the urgent need to implement integrated restoration strategies that account for both hydrological catchment recovery and the mitigation of urban pressure to ensure the long-term resilience of riparian ecosystems.
The municipality of Coubalan has substantial socioeconomic potential because its mangrove forest supports local livelihoods. However, the forest is exposed to pressures that reduce its extent and species diversity. This study examines mangrove landscape dynamics in Coubalan.
A diachronic analysis covering 1984–2024 used Landsat 5 TM, Landsat 7 ETM+, and Landsat 8 OLI-TIRS imagery processed in ENVI 5.3. Maximum likelihood supervised classification identified six land-use classes: mangroves; barren areas; water; mudflats; forests and savannas; and built-up areas, bare ground, fields, and fallow land. Water and mangroves were the most stable classes. During 1984–2003, mangroves and forests and savannas increased by 6.05% and 2.31%, respectively, while built-up areas, bare ground, fields, and fallow land and mudflats decreased by 2.86% and 7.56%. Mudflats converted to mangroves accounted for 5.90%. During 2003–2024, the trend reversed, with 7.84% of mangrove area converted into mudflats.
Across the full period, mangroves and forests and savannas had average annual spatial expansion rates of −0.45% and −1.45%, while built-up areas, bare ground, fields, and fallow land and mudflats increased by 0.31% and 0.56%. Annual deforestation rates were 0.41% for mangroves and 1.10% for forests and savannas, and the 2024 anthropization index was 1.94. Mangrove cover declined from 19.93% in 1984 to 16.68% in 2024. The findings may support local mangrove management, while further research is needed to identify the principal drivers of degradation.
P. Faye, Alioune Diop, S. Diop et al.· Journal of Applied Life Scie...· 0 citations