The database and the chorological atlas of the flora of Sulcis (south-western Sardinia) – We present the Database and the chorological atlas of the flora of Sulcis (south-western Sardinia). In the creation of the DbFlora Database application, a system was adopted that enables access both geographically and alphanumerically. The alphanumeric section features the usual browsing and database management functions. It is based on the widely-used Microsoft Access DBMS engine and its main characteristic are the individual records (index cards) created for each floral specimen. Each card features a main template screen where the taxon’s identifying data is summarised and five sub-sections relating to linguistic, biological, ecological and chorological data, as well as the rarity of the specimen. Every sub-section features a series of fields, which enable the interaction with the cartographic reticules and the other georeferenced data. The Geographic Information System was utilised both to georeference the area of study and to create the chorological atlas. The basic cartographic grid was created according to the international UTM reference system and that one adopted in Central Europe for floristic cartography. In the first case, a square grid with 1 kmq cells was built, whilst in the second case, the grid is rectangular with cells of 6’ in latitude by 10’ in longitude. The two systems interact because of connecting software, which enables the instantaneous processing of the distribution maps for each species or, vice versa, to find all the taxa present in a specific section of the reticule. Thanks to the database and the atlas and through the Geographic Information Systems, it has been possible to make the research on flora compatible with all the other existing data for the area.
Il database e l'atlante corologico della flora del Sulcis (Sardegna sud-occidentale)
BACCHETTA, GIANLUIGI;
2004-01-01
Abstract
The database and the chorological atlas of the flora of Sulcis (south-western Sardinia) – We present the Database and the chorological atlas of the flora of Sulcis (south-western Sardinia). In the creation of the DbFlora Database application, a system was adopted that enables access both geographically and alphanumerically. The alphanumeric section features the usual browsing and database management functions. It is based on the widely-used Microsoft Access DBMS engine and its main characteristic are the individual records (index cards) created for each floral specimen. Each card features a main template screen where the taxon’s identifying data is summarised and five sub-sections relating to linguistic, biological, ecological and chorological data, as well as the rarity of the specimen. Every sub-section features a series of fields, which enable the interaction with the cartographic reticules and the other georeferenced data. The Geographic Information System was utilised both to georeference the area of study and to create the chorological atlas. The basic cartographic grid was created according to the international UTM reference system and that one adopted in Central Europe for floristic cartography. In the first case, a square grid with 1 kmq cells was built, whilst in the second case, the grid is rectangular with cells of 6’ in latitude by 10’ in longitude. The two systems interact because of connecting software, which enables the instantaneous processing of the distribution maps for each species or, vice versa, to find all the taxa present in a specific section of the reticule. Thanks to the database and the atlas and through the Geographic Information Systems, it has been possible to make the research on flora compatible with all the other existing data for the area.
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