Unverified50% confidenceFactExact time
Traditional anthropology held that tropical rainforests, due to poor soils and heavy disease burden, could support no more than 1–2 people per square kilometer in hunter-gatherer populations
1
Sources
50%
Confidence
Long-term
Relevance
8/9/2026
First Seen
Sources
亚马逊失落文明：3%雨林面积曾养活300万人口
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