What's the season under our feet?

When on the ground is summer, deep down, such as 3 meters from the ground, what is the season? You may think that there is also the summer stars? Wrong! The season on the ground and the ground is not the same as many people think.

(Photo: booyaka)

The soil leads to very poor heat. In St. Petersburg, the 2-meter-deep water pipes are still not frozen in the coldest days. The change in ground temperature spreads very slowly to the deep layers, and so does the layer after layer. Measurements in Petersburg show that, under 3 meters deep, the hottest time of the year is 76 days slower than on the ground, and the coldest time is 108 days late. This means that if the hottest day on the ground is July 15, it is 3 meters deep, until October 9, it will be the hottest. If the coldest day is January 15, then it is 3 meters deep, until May (ie early summer) is the coldest! The deeper you go to the deeper layers, the more delay.

Down deep into the earth, the temperature changes are not only slow, but also weakened, and to a certain extent it is lost. In the Paris observatory's tunnel, at a depth of 28 meters, there is a thermometer set in the mid-19th century, which until today, over 150 years, it still does not budge, still before +11.7 So C. Under the ground, there is no season. It is always a season.

Researching the weather changes of soil layers is really important. It gives us an understanding of the ecological environment of larvae and other animals, about the growth of plants . Thus, we can understand that, unlike the leaves and reproductive stem cells in the second half of the year, the root cells reproduce in the cold half-year, and the new organism of the roots almost stops working in the hot season.