文物修缮，研究工作贯穿始终（传承之光）

Core Viewpoint - The restoration of the Nanchan Temple Hall is a significant case of "research-based restoration," highlighting the evolving understanding and methodologies in cultural heritage preservation over the past decades [4][9]. Group 1: Historical Context - Nanchan Temple Hall is the earliest existing Tang Dynasty wooden structure in China, predating the Foguang Temple by 75 years [4]. - The temple was severely damaged by the time it was discovered in 1953, prompting the need for repairs [4]. - Initial restoration plans were proposed in 1954 but were delayed until 1974 due to various challenges, including the 1966 earthquake [4][6]. Group 2: Restoration Methodologies - The 1954 restoration plan focused on "current condition repair," while the 1974 plan adopted a "full-frame repair" approach, reflecting changes in the building's condition over 20 years [6][8]. - The 1974 restoration emphasized preserving the original structure and components, ensuring that the main structural elements remained unchanged [6][8]. - The restoration process involved extensive research, including literature review, comparative studies, and archaeological findings to determine accurate dimensions and structural integrity [7][9]. Group 3: Expert Opinions and Debates - Experts provided critical feedback on the restoration plans, advocating for caution and thorough research before making alterations [5][6]. - The choice of "chiwei" (ridge ornament) style during restoration sparked significant debate among experts, with differing opinions on the appropriate historical references to use [9]. - The restoration utilized modern materials and techniques, such as epoxy resin, raising questions about compatibility with original wooden components [9]. Group 4: Lessons Learned - The Nanchan Temple Hall restoration exemplifies the importance of integrating research throughout the restoration process, from initial surveys to implementation [9]. - The collaborative approach among experts and the emphasis on preserving original materials and structures serve as valuable lessons for contemporary restoration practices [9].