Date: 3 months ago   Category: History

Unexpected traces of an ancient civilization are found


Researchers of McGill University have found out that ancient Maya promoted an erosion and impoverishment of soils in rainforests of the peninsula Yucatan that is noticeable still. It is reported in the press release on Phys.org. It is known that in the 9th century of our era of the Maya endured the strong decline which is expressed in fast reduction of the population, outflow of inhabitants from the cities and destruction of systems of water supply. Scientists assume that rather developed civilization of the Maya has disappeared as a result of the environmental disaster caused by deforestation, distribution of agriculture and city building. Researchers have studied models of deposits from a bottom of three lakes which are located in the southern part of Mexico and Guatemala. Experts have determined the age of the remains of vegetable wax which a long time are stored in the soil as a part of minerals. Then they have compared the turned-out values of fossils of the plants which are contained in the same deposits with age. It has turned out that when Maya have begun large-scale deforestation, the age difference of wax and fossils has sharply decreased. It means that carbon is stored in soils during short periods. Thus, carbon reserves in the soils cultivated by the Maya sharply were reduced that became the reason of loss of their fertility. According to scientists, consequences of these changes are noticeable still — soils on the peninsula Yucatan still weren't restored. It is more than important news in Film of Day Telegram-channel. Subscribe!

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