西藏历史文化名城空间要素的文化价值与保护

Cultural Value And Protection Of Spatial Elements Of Tibetan Historical City

文章以拉萨、日喀则、江孜三座西藏历史文化名城为研究对象,通过提取其城市边界、分区、天际线及街道空间四个空间要素,分析了空间要素所蕴含的思想内涵及文化价值,即边界对生态伦理和社会伦理的反映、分区对宇宙观变迁的表达以及街道对宇宙观的二重反映;分析"双极"意向被淡化、人工天际线及竖向界面被破坏、老城的边界意向不断弱化、老城内街巷形态和空间肌理被破坏的现状;提出整体保护"双极"格局、控制建筑高度及制定"竖向紫线"、保护山水格局及外围转经道、保护传统建筑格局的规划策略。

This paper chooses three historical and cultural cities in Tibet - Lhasa, Shigatse and Jiangzi - as study cases. A study on the edges, zoning, skyline, and streets of the cities reveals some cultural implications of physical environment： ecological and social ethics in edges, evolution of universe in zoning, and dual understanding of universe in streets. With respect to cityscape problems, the paper puts forwards planning strategies： preserving natural and bi-polar layout, control of building height, and preservation of traditional architecture layout.