Текст уведомления здесь

Soil scientists have taught archaeologists to determine the amount of precipitation in the past

Experts at the State Historical Museum (Moscow) and the Institute of Physical, Chemical, and Biological Problems of Soil Science of the Russian Academy of Sciences (Pushchino) determined how many microorganisms there are in soils from burial mounds, which are 3300−6200 years old. The mounds are a part of the Peschanyi-V burial ground in the Rostov Region. The data obtained showed that it is possible to estimate changes in humidity over the centuries by determining the number and mass of bacterial cells in a sample of soil of a given age.
Добавить в закладки
Комментарии

Scientists have investigated several barrows dated to the period from 4200 to 1300 BC and determined the biomass of microorganisms in layers of various epochs. They compared the mass of microbes and fungi with the humidity of the climate, which was determined by the content of salt in the same layers, which revealed how the number of microorganisms varies according to the humidity of the climate — the more humid the climate was during a certain period, the greater the number of microbes in the corresponding soil layer.

Now that characteristic of the soil from barrows or other archaeological objects can be used to estimate the norm of precipitation in a particular locality during different periods of human history.

The scientific article is published in the journal Arid ecosystems (Аридные экосистемы).

Добавить в закладки
Комментарии
Вам понравилась публикация?
Расскажите, что вы думаете, и мы подберем подходящие материалы