河北省衡水市南部的衡水湖是华北平原唯一保持沼泽、水域、滩涂、草甸和森林等完整湿地的生态系统，发源于太行山东麓的滏阳河贯行而过。每逢 10 月中旬至 11 月初，成批的鸿雁、白琵鹭、浮须鸥等鸟群缓缓飞过上空，抵达衡水湖驻足，再向南迁徙越冬。当地政府希望在一片紧邻衡水湖的自然湿地上修建公立植物园，为市民与游客提供生态旅游、植物科普、公共教育等服务。空格建筑在 2019 年完成了包含温室展览馆、水生植物科普馆、花房艺术中心、植物研究中心等一系列建筑和景观设计。

Located in the south of Hengshui City of Hebei Province, Hengshui Lake is the only wetland ecosystem in the Northern China that contains marshes, water, mudflats, meadows and forests. Fuyang River, which originates at the eastern foot of the Taihang Mountains, runs through the lake. From mid-October to early November, flocks of geese, spoonbills and gulls arrive at Hengshui Lake before migrating south to spend the winter. The local government intends to build a botanical garden on a natural wetland adjacent to Hengshui Lake to promote ecotourism and provide a place for botanic study and public education. From 2019-2021, Interval Architects completed a series of buildings including an exhibition greenhouse, a museum for aquatic plants, a botanic art center and a botanic research center.

▼项目概览

overall view of the project

温室展览馆是系列建筑中的代表，场地位于园区南部，紧邻中心湖水，与湖心岛、花房艺术中心遥遥相对。温室展览馆的面积约 3000㎡，规格介于大型温室展示馆与生产性玻璃温室之间。设计打破了旧有概念中植物展览馆的圆形球体印象，在资金紧缺、工期限制等客观因素下，通过标准化的钢构架和幕墙体系，建构出一个糅合现代性与公共性的市民花园。

The Exhibition Greenhouse is the most important and representative architecture among all the buildings in the botanic garden. It is by the central lake and opposite to the Botanic Art Center. With a size of approximately 3,000sqm., the design breaks away from the conventional spherical form which are typically seen among greenhouse buildings. With limited budget and tight time schedule, the design intends to create a contemporary and public garden through standardized steel structure and curtain wall system.

▼总平面图，site plan

公共性和标志性

Publicness and Icon

衡水植物园选址位于衡水市南侧，距离市区大约 15-20 分钟车行距离，建成后将作为郊野公园和公共文化平台向市民开放。

植物园设计需要充分利用基地的丰富自然资源，并在视觉上和服务上形成一定的吸引力，给当地市民创造完整的植物游览体验。

The Hengshui Botanical Garden is located in the south of the city and approximately 15 minutes away from downtown. It will be open to the public as a country park and public cultural platform. The design of the botanical garden shall make full use of its rich natural resources and create a visual and functional appeal in order to provide a comprehensive botanical experience for visitors.

▼位于公园中的建筑，building located in a park

衡水植物园定位上强烈的公共性和标志性，对建筑形式提出了挑战。作为园区的主体建筑，温室展览馆还面对着不断迫近的开园时间与公众的期待，产生出更加复杂的现实条件：如何在满足场地、造价与工期多重限制的同时，让建筑在场所中自然生长。近现代温室建筑中惯常采用的强调形式感、纪念性的巨型球体构架，或造价高昂的异形体量等建造方式。如果直接从原型出发去设计一个标志性的建筑物，将出现两方面的问题：一方面，穹顶或非线性顶面的结构将占用更大的面积和体量，让整个建筑和周围的湿地景观产生“失衡”的感受；另一方面，非线性的形态对材料、结构和施工提出了更高的要求，需要在生态和植物方面做出牺牲，这违背了设计的最初意图——建筑以植物为主角，自由地介入场地环境，整体向中心湖面延展。

The strong public and iconic nature of the Hengshui Botanical Garden poses a challenge to the architectural form. As the main building of the garden, the exhibition greenhouse faces the ever-looming opening date and public expectations, thus creating an even more complex question: what position and attitude should the architecture takes to meet the constraints of schedule, budget and public expectations of being iconic?

It is common in modern greenhouse architecture to build gigantic spherical structures that emphasize form and monumentality or to construct a costly structure with a blobby shape. We intend to avoid designing the exhibition greenhouse from these “prototypical” common approaches for two reasons. Firstly, the dome or non-linear spherical roof structure will take up a larger area and volume, thus creating an ‘imbalance’ between the supposedly small-scale-building and the surrounding wetland landscape. Secondly, the non-linear formal structure will generate higher and stricter requirements on the use of materials, structure and construction, and therefore generate more ecological sacrifices which is against the original intention of the design – a building that intervenes minimally with the environment and makes plants the main protagonists.

▼与环境融合，building merges into the environment