Methodology for Establishing the Appropriate Protected Area based on the Analysis of Old Drawings In case of Gia Long Mausoleum, Hue

This paper focused on the first imperial Mausoleum of the Nguyen Dynasty of Vietnam, Emperor Gia Long (reigned 1802-20), which is one of the components of the World Heritage property [Complex of Hué Monuments]. The paper discussed the relationship between the Gia Long Mausoleum (after this GLM) and its territory from the aspects of "Shan-Shui design", "water management system suitable to tropical monsoon climate" and "symbiosis with local com- munities". This study also revealed that the current protected area is only a tiny part of the area that Gia Long planned by deciphering an old drawing which expresses the ideal worldview of Gia Long and an old map which shows the forbidden area in that era. These research findings contribute to expanding and deepening the OUV of GLM, which was not fully taken into account when the site was inscribed on the World Heritage List in 1993 and provide a basis for establishing the appropriate protected area of GLM.