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吴春花 《建筑技艺》（AT）执行主编

任何一个好的建筑，都应当是“在地性”的设计。这种“在地”特性源于建筑物所处的自然环境或既有建成环境以及形成的文化、风土等地域特征，进而以空间组织、建构、材料等因地制宜、因材致用的策略予以回应。那么，建筑师如何看待这关乎人、地、时的“在地性”，也就体现了其所持的立场和责任。本期“AT建筑”以“守护自然”为主题，推出庄惟敏院士团队所做的九寨沟景区沟口立体式游客服务设施及一系列震后重建、恢复项目。

毫无疑问，大自然神奇造化的九寨沟、星罗棋布的九个藏寨、安多藏族文化，以及丰富的生态系统，这些都是九寨沟自然保护区的重要构成要素。因此，对于震后重建工作，以“守护自然”为初心，面向场地、地域、建造、需求的在地设计是一种本能使然，但如何恰当地守护，如何把握好分寸，才是至关重要的。山林之间，游客中心顺应地势缓缓匍匐在沟口，婉转的曲线形态融入自然，展示中心以抽象的藏地“法螺”与两个木结构罩棚成为凸显的标志，也成为游客进入九寨沟前的先导空间，除此之外整个建筑似乎被消隐了。设计最大限度地让渡于交通——游客中心最具城市性、功能性的需求，立体式、双广场交通系统巧妙解决了经精确计算的车流、人流集散问题，其他服务空间也被充分安排。在这其中，建筑的表达是适度的，石板瓦覆盖下的屋顶微微起伏，小料石铺砌的广场如星河闪烁，好似月光的动态照明影影绰绰，是“人作”向“天工”的致敬；螺旋上升的展示中心似与“林卡”景观的风马旗彩色幡帐相呼应，是“人作”向藏族文化的致敬；由数字模型控制的木构开花柱、源于自然花序的胶合木梁，及夯土墙、木垒墙，是“人作”向传统建造技艺的致敬；设计团队牵头的EPC下全过程数字化手段指导智能建造，是“人作”向当代多专业综合设计的致敬。

正像庄惟敏院士在品鉴会最后的发言中所说的，九寨沟“8.8”震后的四年时间里，建筑师团队与业主、景观设计、照明设计、木构施工、钢构施工等团队克服困难、密切配合，最终实现了新的游客中心，而作为建筑师所坚守的建筑学立场与责任也实现了守护自然的初愿”。的确，我们始终要提醒自己，每一个建筑都应立于大地、生长于大地、归于大地，同时也应尽可能地赋予这幢建筑以建筑学的意义，这是建筑师的责任所在。

Every outstanding architecture should be a "in-site" design,which originates from the natural environment where the building is located and the existing built environment,as well as the cultural,local and Anduo Tibetan culture be formed.The design responds with the strategies of space organization,construction,materials,etc.Architects'views on the " in-site " of people,places and times also reflect their positions and responsibilities.With the theme of "Guardians of Nature",this issue of "AT Special" introduces Jiuzhai Valley Visitor Service Facilities and a series of post-earthquake reconstruction and restoration projects made by Academician Zhuang Weimin's team.

There is no doubt that the miraculous nature of Jiuzhai Valley,nine Tibetan villages,Tibetan minority cultures,and good ecosystems are all important elements of Jiuzhai Valley Nature Reserve.Therefore,it is instinctive for the post-earthquake reconstruction work to take "Guardians of Nature " as the initial intention,and design in place for the site,region,construction and demand,but it is important to master the right balance.Between the mountains and forests,the Visitor Center adapts to the terrain and integrates into the nature.The "conch" shaped exhibition center and two wooden structures become the leading space for tourists to enter Jiuzhai Valley .The entire building seems to be hidden.The design skillfully solves the traffic problem through the three-dimensional double deck square,and other service spaces are also fully arranged.Among them,the expression of architecture is moderate.Slate roof,small stone square and moonlight lighting are the homage of "man made" to "heaven made".The exhibition center echoes the colorful flag tent,which is tributes to Tibetan culture by "man made".The wooden flowering columns,glued wooden beams,rammed earth walls and wooden ramparts are tributes to traditional construction techniques.The whole process of intelligent construction guided by digital means under EPC led by the design team is a tribute to the contemporary multidisciplinary integrated design.

As Academician Zhuang Weimin said,"In the four years after the Jiuzhai Valley earthquake,the architect team worked closely with the owners and various teams,and finally built a new tourist center,realizing the first wish to protect nature".Every building should stand on the earth,grow on the earth and belong to the earth.Architects need to uphold responsibility and give meaning to architecture.