The dataset contains the polygons of known grasslands along the coast of Catalonia. The polygons have associated an attribute that indicates the type of community based on the species of phanerogams present: Posidonia oceanica; Cymodocea nodosa; Zostera noltii; Cymodocea nodosa i Caulerpa prolifera; Cymodocea nodosa, Zonstera noltii i Ruppia cirrhosa.

The dataset contains the coastline of Catalonia characterized for reporting the reliability of the grasslands in the 'Herbassars or prairies of marine phanerogams' dataset. If there is not known information in a section the line is not displayed. The degrees of reliability in which the line is classified are: Very high; High; Medium; Low.

The dataset contains the polygons of surrounding areas of grasslands or prairies of marine phanerogams. Bounding areas are zones in the sea near the shoreline where there is known to be grassland.

Distribution of soils in the territory according to their morphology and characteristics physical, chemical and biological, and those of the environment where they are found.

Representation, as a grid of 20 m resolution, of the following biophysical variables of the trees (the one identified in the Land Cover Map of Catalonia as wooded forest masses), which allow to know the structure of the wooded mass: Total aerial biomass; Total aerial carbon; Volume with bark; Foliar biomass; Basal area; Tree cover; Average normal diameter; Medium height; Foliar area index (available in some editions only); Density of feet per hectare (available only in some editions).

Representation, as a grid of 20 m resolution, of the following biophysical variables of the trees (the one identified in the Land Cover Map of Catalonia as wooded forest masses), which allow to know the structure of the wooded mass: Total aerial biomass; Total aerial carbon; Volume with bark; Foliar biomass; Basal area; Tree cover; Average normal diameter; Medium height; Foliar area index (available in some editions only); Density of feet per hectare (available only in some editions).

Limits of the areas of natural interest defined in Decree 328/1992, which approves the Plan of areas of natural interest (PEIN), and any subsequent modifications that may have occurred. This base includes spaces at a scale of 1:50 000 and, in some cases, 1:5 000. The PEIN establishes a network of spaces representative of the rich landscape and biodiversity of the territory of Catalonia, from high mountains to coastal plains, and from Euro-Siberian forests to semi-desert wastelands or marine spaces. The PEIN is the higher level planning instrument that structures the system of protected areas of Catalonia and integrates this system within the whole territory, as it is a sectorial territorial plan framed within the Territorial Plan of Catalonia (1995). Subsequent to its approval, specific modifications to the rules and limits have been approved by decree, as well as extensions or additions of new spaces.

Boundaries of the natural spaces of Catalonia that form part of the European Natura 2000 network. Natura 2000 is a European ecological network of areas that may have been proposed as special protection areas for birds (ZEPA) in accordance with the Directive 2009/147/CEE, also known as the Birds Directive, and/or as Special Areas of Conservation (ZEC) in accordance with Directive 92/43/CEE, also known as the Habitats Directive. In the first instance, the Government of Catalonia approves the proposal for sites of Community importance (LIC) for the Natura 2000 network of the areas of the Alpine and Mediterranean biogeographical regions. Subsequently, the European Commission adopts the conformity of this proposal and finally the Government of Catalonia declares the LICs as ZECs.

Limits of the figures defined in Law 12/1985, of natural spaces: national park, natural places of national interest, natural reserves and natural parks. It also contains the limits of wildlife reserves defined in Legislative Decree 2/2008, of 15 April, approving the Revised Text of the Animal Protection Act. The limits of each space are established in the legal regulations by which the space is declared or modified.