Use of building materials and refuge availability (mean ± standard deviation, SD) according to ecotope.

*‘Other’ includes mainly plastic items and clothes.aA site was considered to have wood as a building material when an important part of the site had wood uncovered. Wood is usually present in the structure on which mud is laid, but in those cases it was not considered a building material.bIn domiciles, kitchens and storerooms, the material in question was mostly in the roof. In the case of cardboard, as tarred-cardboard sheets.

*「其他（Other）」类别主要涵盖塑料制品与衣物类物品。a 当遗址的重要区域存在暴露的木质结构时，该遗址即被认定以木材作为建筑材料。木材通常见于承载泥层的结构中，但此类场景下的木材并不被视作建筑材料。b 在住宅、厨房与储藏室内，所涉建筑材料多位于屋顶部位。以硬纸板为例，此处特指涂沥青的硬纸板板材。