Either for hunting, or to clear land for agriculture, humans engaged in wide scale burning of the bush 50,000 years ago. Burning caused a decrease in the exchange of water vapour between the biosphere and atmosphere. Clouds stopped forming and the annual monsoon over central Australia failed. Whereas once the Nullarbor Plain was home to forests and tree dwelling kangaroos, now it is desert. Likewise, Lake Eyre, formerly a deep-water lake in Australia's interior, is now a huge salt flat only occasionally covered by ephemeral floods.
Но что-то мне не верится, что это аборигены все повырубали и повыжигали. Судя по другим археологическим находкам, они были умные ребята. Вплоть до того, что была построена система каналов, в которых они разводили угрей.
One possible exception can be found in Victoria. In the Lake Condah region of western Victoria, artificial ponds were constructed across the grassy wetlands. Channels were dug to connect them and eel traps were placed in the channels. It has been estimated that these farms could have produced enough eels to sustain 10,000 people. Some circular rock foundations also indicate the possibility that stone dwellings were built and people lived in villages.
Я цитирую другой материал, а они в свою очередь, по-моему, цитируют книжку одной известной австралийской архологини. Книжку я ее читала в местном книжном магазине (очень удобно, садишься в кресло и вперед :).
Either for hunting, or to clear land for agriculture, humans engaged in wide scale burning of the bush 50,000 years ago. Burning caused a decrease in the exchange of water vapour between the biosphere and atmosphere. Clouds stopped forming and the annual monsoon over central Australia failed. Whereas once the Nullarbor Plain was home to forests and tree dwelling kangaroos, now it is desert. Likewise, Lake Eyre, formerly a deep-water lake in Australia's interior, is now a huge salt flat only occasionally covered by ephemeral floods.
Но что-то мне не верится, что это аборигены все повырубали и повыжигали. Судя по другим археологическим находкам, они были умные ребята. Вплоть до того, что была построена система каналов, в которых они разводили угрей.
One possible exception can be found in Victoria. In the Lake Condah region of western Victoria, artificial ponds were constructed across the grassy wetlands. Channels were dug to connect them and eel traps were placed in the channels. It has been estimated that these farms could have produced enough eels to sustain 10,000 people. Some circular rock foundations also indicate the possibility that stone dwellings were built and people lived in villages.
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http://www.convictcreations.com/aborigines/index.htm
там еще много чего интересного есть. Например, про два вида наскальной живописи - Bradshaw и Wandjina.
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