A Renewed Approach to the ABC Landscape Assessment Method: An Application to Muntanyes d’Ordal, Barcelona Metropolitan Area

The aim of this paper is to describe a renewed approach to the ABC landscape assessment method, a procedure that undertakes landscape approach considering abiotic (A), biotic (B) and cultural (C) elements shaping the landscape. This new method is organized in three nested multi-scaled levels defined with high accuracy (1:10,000; 1:20,000; 1:25,000), it combines holistic and parametric approaches and it delineates landscape units from both a typological and chorological point of view. The procedure is based on field work, congruently integrates physical, cultural and perceived landscape components and focuses on the spatial dimension of landscape. Landscape units are hierarchised and classified, leading to a landscape taxonomy. An example is given for Muntanyes d’Ordal, in the Barcelona metropolitan area, with 36 units and 1,019 delineations at Level I, 8 units and 74 delineations at Level II and 14 units at Level III. Overall, 42.5% of Level I delineations are defined by biotic elements and 32.4% by anthropic elements, which shows the peri-urban nature of the area studied. The main interest and originality of the method lies in the fact that the holistic and parametric approaches are integrated using a systematic procedure that can be easily replicated anywhere so that results from different areas can be compared.