Hydrogeological constraint

Constraint to protect natural beauty. The areas depicted represent the areas subject to the obligation of landscape protection within the meaning of Article 136 of Legislative Decree No 42 of 22 January 2004 (ex Law No 1497) of 29 June 1939, delimited over time by specific Ministerial Decrees.本数据集所描绘的区域，系旨在保护自然美景的约束性管控区域，符合2004年1月22日第42号立法法令（替代1939年6月29日颁布的原第1497号法律）第136条所定义的需承担景观保护义务的覆盖范围，并经历次专项部长级法令逐步划定边界。