如欧亚大陆草原(Steppe)、北美大陆草原 (Prairie)、南美草原(Pampas)。 56 温带草原 57 我国主要以内蒙古和大关安岭以西癿广大地区,向 西逐渐过渡成荒漠。
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令我感到惊讶的是,我在北方视为理所当然的一切事物,在南美大草原上几乎都没有发生。
I was amazed that virtually all the things I took for granted up north just didn't happen in Savannah.
这片南美无树大草原仍然是世界上最为肥沃的地方。
The pampas are still among the most fecund lands in the world.
在某些地方,特别是在南美洲,稀树草原的形成似乎与频繁地砍伐和焚烧潮湿的森林作为牧场有关。
On certain sites, particularly in South America, savanna formation seems related to frequent cutting and burning of moist forests for pastureland.
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