MAP: Evolution of agricultural areas in Alsatian municipalities between 2000 and 2011/2012, changes in areas in % (BdOCS v2)-A4

This map was made with the aim of quantifying the evolution of agricultural areas in each Alsatian municipality over the period 2000-2011/2012. This analysis is expressed in rates, i.e. the percentage that additional agricultural land represents in 2011/2012 compared to agricultural land in 2000. This mapping is part of the BdOCS-CIGAL project, its realisation is based on the exploitation of the BdOCS-CIGAL 2000 and 2011/2012 in version 2 updated. The punctual figures are proportional to the importance of the phenomenon per commune ranging from -8.37 % to + 5.94 %, the positive evolution is represented in green while the negative appears in orange. 73 % of Alsatian municipalities experienced a regression in their agricultural area, while 7 % stagnated and 20 % showed an increase in their areas. Semiologically, it is incorrect to represent percentage changes, which is why it is important to link this map with that of the evolution of agricultural areas per municipality expressed in hectare. Indeed, the territory will not necessarily be placed at the same level depending on whether the evolution of the surfaces is expressed in volume or in rates. Thus, if large agglomerations record a significant decline in quantity, the magnitude of these relative to changes in rates is less. All sectors of major work carried out over the period have a strong impact on agricultural spaces. It is noted that the pedestal is affected by surface losses that are compensated for in the mountain area. This mapping is carried out for a print planned in A4 format, color, portrait orientation.