A plateau in the Andes that stretches from northern Argentina to Chile. 3,000-5,000m above sea level. 23°-27° south latitude. "Puna" means "highland where altitude sickness is likely" in Quechua, and there are also areas in Bolivia and Peru that are called this. There is almost no rain, so only sparse vegetation can be seen in the valley bottoms. Cone-shaped volcanoes of about 6,000m high stand tall, and salt accumulates in the low depressions on the plateau, called "Salars." The Trans-Andean Railway has been running from Salta in Argentina to Antofagasta on the Pacific coast of Chile since 1948, but the dryness and cold make it impossible for grass to grow as livestock feed, and it has become a sparsely populated desert. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
アルゼンチン北部からチリにまたがるアンデス山脈中の高原。標高3000~5000m。南緯23゜~27゜。プーナpunaとはケチュア語で高山病になるほどの高原という意味で,ボリビアやペルーでもこのように呼ばれる地域がある。雨がほとんど降らないので谷底にまばらな植生がみられるだけである。円錐形をした6000m級の火山がそびえ,高原上の平低な凹地には塩類が集積しサラールと呼ばれている。アルゼンチンのサルタからチリの太平洋岸のアントファガスタまで,1948年からアンデス横断鉄道が通じているが,乾燥と寒さのため家畜の餌となる草も育たず,人口が非常に希薄な砂漠となっている。
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