A Complete Collection of 100000 Whys
Fav十万个为什么
为什么玛雅和楼兰会灭亡？
玛雅和楼兰的灭亡主要源于气候变化、环境破坏和资源枯竭。
1、气候变化：玛雅文明在公元800-950年间遭遇了长达150年的严重干旱，导致粮食生产严重受挫，社会动荡；楼兰则因全球气候旱化，罗布泊逐渐干涸，水源枯竭。
2、环境破坏：玛雅地区因人口增长导致土地过度开发，水污染加剧了生态恶化；楼兰因人类过度开发和掠夺式利用资源，加速了生态恶化。
3、资源枯竭：玛雅的水资源污染和农业资源枯竭导致社会崩溃；楼兰因河流断流和土地沙漠化，最终无法维持生存。
总结：玛雅和楼兰的灭亡主要源于气候变化、环境破坏和资源枯竭。
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