noun
wilderness; virgin land; wild land
Refers to land in its natural, uncultivated state, untouched by human development.
その原生地には多様な野生動物が生息している。
A variety of wild animals inhabit that wilderness.
開発が進み、原生地は年々
As development progresses, virgin land is decreasing year by year.
noun
habitat; native land
Used especially in ecological or biological contexts to mean the natural environment or original region where a species lives.
この植物の原生地は南アメリカです。
The native habitat of this plant is South America.
外来種が原生地の生態系を脅かしている。
Invasive species are threatening the ecosystem of the native land.
生息地 is a more common and general term for 'habitat' of any organism, whereas 原生地 specifically implies the original or native habitat.
Compound of 原生 (げんせい, 'primeval, original') and 地 (ち, 'land, place'). The exact historical derivation is uncertain, but the word is transparently formed from these elements.