一、巢居 ——一种原始的居住形式

Nest Dwelling — A Living Style in Ancient Times

巢居是指上古时期，居住在地势低洼、潮湿地区的原始人类为躲避蛇、虫、野兽的侵袭，在树木上用树枝搭架而成的居所，因其形状类似于鸟巢，故名巢居。

原始的巢居是在单株大树上架巢，即在分枝开阔的树杈间铺设枝干茎叶，构成居住面，其上再将枝干相交构成避雨的棚架。后来发展为在相邻的多棵树上架巢，到新石器时代中期演变为干栏式建筑。

In ancient times, primitive humans living in low-lying and humid areas invented the nest dwelling to protect themselves from the invasion of snakes, insects and beasts. They used branches to build rooms on trees, just like the way birds build nests, hence the name.

The original form of the nest dwelling can be presumed to be a nest on a single tree: laying small branches, stems and leaves among branches to form a living platform, and then crossing branches above to form a shelter. Later it developed into nesting on many adjacent trees, and in the middle of the Neolithic Age, it evolved into the wooden stilt style building.

巢居模型
Model of Nest Dwelling