This study analyzes the impact of the distribution of coconut (Cocos nucifera L.) on the beaches of the Dominican Republic and its relationship with coastal erosion and the dynamics of beach-dune systems. A total of 31 beach-dune systems were compared using 17 qualitative variables to assess the influence of palm trees planted for agricultural or touristic purposes on beach morphology, anthropic occupation, and dynamics. The results indicate that beaches with palm trees planted for touristic purposes exhibit higher compaction, slumping, and erosion, as well as lower resilience in the beach-dune system. These beaches also have a higher presence of tourist complexes, mechanical cleaning, and removal of vegetal debris, which contributes to the alteration of the beach profile and native vegetation. Palm trees can also act as wave flow accelerators, exacerbating sediment loss and increasing the risk of the palms themselves falling, which entails personal risks. It is concluded that the removal of coconut palms and comprehensive beach restoration, including the recovery of dune fronts and associated vegetation, are necessary actions to improve the stability and dynamics of Dominican coasts. Furthermore, the importance of developing planning and management strategies that promote the conservation and restoration of beach-dune systems in touristic and agricultural areas is suggested.

3D model of geological surfaces that contains the main stratigraphic surfaces and geological structures of Catalonia, the location of the main exploration drillings and the topographic and bathymetric surface of the model area.

The patterns of use and frequentation of beaches are a useful tool in coastal management and planning. The aim of this article is to apply the methodology for the analysis of physical carrying capacity in 16 beaches of the island of Menorca, based on the values in m²/user recommended in 2000. A multi-temporal analysis of the evolution of the beaches is carried out using qualitative variables that allow obtaining the trends of the beaches with parameters that analyze their management and occupation (2000-2017). The results obtained show that the beaches have acceptable carrying capacities and that environmental management, their publicity, and the services provided condition their spatio-temporal evolution. The methodology allows establishing future scenarios through the use of the analyzed variables.

The Geoanthropic Map is a cartographic document with applied geothematic content in which the current state of the physical constitution of the territory is represented, at the appropriate scale for territorial planning, as a result of anthropogenic action on the geological environment and the geological conditions for human activity. It reflects those geological elements and processes that directly affect or may directly affect human activities, together with those human activities or actions that modify the morphological characteristics of the topographic surface or that may directly affect the physical properties and behavior of the natural terrain. The Geoanthropic Map includes elements typical of a geomorphological map, while, in the Anglo-Saxon sense of the term, it makes an inventory of natural geological processes and artificial interventions in the geological environment. It classifies natural processes according to their activity and orders them according to the areas of generation of the materials involved, the transport mechanisms, the areas of deposition and the characteristics and geological properties of the deposits. Similarly, it classifies artificial elements and deposits according to the activities that have generated them, to which they give or have given service. This map also includes geotechnical determinations, such as a map of lithological groups and structural elements, the degree of consolidation, the degree of weathering, the degree of rippability and other geomechanical properties of the materials.

This work assesses the level and role of management and the morphological status of coastal dunes in Catalonia and Valencia. Ten beach-dune systems were studied to determine how management actions influence their morphological status. Results show two main groups: those without sustainable management, in an advanced erosive state, and those where sustainable management was applied, presenting good conservation status.

Location and characteristics of the geotechnical surveys of the subsoil carried out (boreholes, penetrometers and test pits).

Inventory of defence structures built to reduce the risk of avalanches. Single and lineal structures are documented, such as artificial avalanche release systems, road barriers, breakers, deflection structures, retention nets, screens, wind baffles, deflectors, rigid and flexible barriers, retention walls, reforestation and controlled areas.

The central element is the 1:25,000 geological map; the rest are called peripheral elements. The peripheral elements are: the legend of the cartographic units, the conventional signs, the stratigraphic columns, the geological sections, the stratigraphic relationship diagram, the geological diagram and the complementary diagrams. The geological map shows the distribution of different types of rocks that emerge on the surface of the earth and their relative arrangement. It allows us to deduce much of the arrangement of rocks in the subsoil and to learn about the geological history of a region. It is a two-dimensional graphic representation that allows us to make extrapolations in three dimensions or, even, four if time is considered, depending on the level of reading that is made. It is formed by a set of cartographic units limited by contacts and by symbols that represent other geological elements: surface dip, folding structures, subsoil information (isopachs or isobaths of the Quaternary), slope of recent deposits, morphological indications, landslides and other recent processes, deposits, etc. It also includes symbols of various references (geological sections, drillings, names of major geological structures, etc.).

Map of the flood sectors of the municipality. This map shows the return periods of 10, 50,100, and 500 years.

This study analyzes the sediment loss associated with the removal of Syringodium filiforme berms from 10 beaches in the Dominican Republic. The results show that approximately 63.8% of the removed volume corresponds to interspersed sediment. This type of management has a continuous morphological impact, affecting the stability of the system's sediment balance.