The use of old demarcations to recover vanished landscapes: a case study in Doñana (SW Spain)

Abstract

This study emphasises the value of surveys, demarcations, and boundary delimitations in uncovering vanished landscapes and understanding the origins of present ecosystems, with a particular focus on Doñana, Spain. A 1661 delimitation was examined providing detailed information on the state of vegetation and ecosystems at the time it was conducted, as well as the processes and disappearance of elements now buried under the mobile dunes. This information was combined with historical maps and documents to gain a better understanding of the area’s ecological history. The demarcation revealed previously unknown aspects, such as the penetration point of the mobile dunes, some vanished ponds, and the drainage of the Santa Olalla pond towards the sea. It also revealed lost and relocated place names, shedding light on their significance through additional historical research and fieldwork. The findings highlight the importance of demarcations in reconstructing vanished landscapes and understanding the genesis of current ecosystems.