On the causes of decline of ancient civilization archaeologists and historians still argue.
Researchers at McGill University believe that the ancient Maya contributed to the erosion and impoverishment of soils in the tropical forests of the Yucatan Peninsula. This was the cause of death of civilization.
It is known that in the ninth century ad the Mayans experienced a strong decline. The sharp decline in the population, the outflow of population from the cities and the destruction of water supply systems… Scientists suggest that the Mayan civilization disappeared as a result of environmental disasters caused by deforestation, spread of agriculture and building of cities.
The researchers studied samples of bottom sediments from three lakes located in the southern part of Mexico and Guatemala. Experts have determined the age of the residues of wax in the soil, and also compared these data with the age of the fossils of plants.
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It turned out, the carbon stocks in soils cultivated Maya has dropped dramatically, what caused the loss of their fertility. According to scientists, the consequences of these changes are noticeable so far — the soil on the Yucatan Peninsula still has not recovered.
According to another version, Maya death was caused by severe drought that lasted several years.