November 23, 2011 13:13
In practice, research groups often there are cases when the abnormal phenomenon of eyewitness has quite prosaic explanation. Unusually, it seems only a layman in a particular discipline. For example, so-called "witches 'rings', people have long been attributed to the antics of evil spirits. Members of the association "Kosmopoisk" occasionally have to deal with such messages, and this time next occasion for this case in the Eastern Siberia.
Message about the mysterious circles received from a resident of the village. Elantsy Irkutsk region Seeds Govorova that about five years ago in the Sagan-forgotten song found several rings. Each of them is a circle with the grass a brighter and more saturated colors faded on its periphery. All — different diameter. For several years, their situation remains constant, changing only the size. According to the seeds, the appearance (or yet discovered — Ed.) Formations data coincided with the drying of lakes are nearby. They also noted that this area is characterized by sightings and that he himself happened to be in the role of a witness.
These data and gave rise to a one-day expedition of "Irkutsk-Kosmopoisk" in Sagan-forgotten area on 15 October 2011. In place of the ring actually found described in the amount of five pieces with a diameter of 12 to 30 meters and with the correct geometric proportions. Rings good stands out withered autumn grass, having darker vegetation supposedly "podpalennoy fire." The width of such a line around the perimeter of the circle was about one meter inside — grass normal color, which does not differ from the general background.
Arrangement of the rings
Analysis of samples of the soil and vegetation of the rings later showed traces of fungal attack. Directly on the leaf and stem of the plate was the identification of Fusarium — plant diseases caused by fungi genus Fusarium. Signs of such lesions are expressed in a sophisticated and darkening of the stem (the early stages of vegetative growth) or desiccation tops and gradual withering of plants (flowering period). Detection of fungal structures on the root system allowed to talk about the fact of mycorrhizae — the symbiosis of fungal mycelium (spawn) with plant roots.
Thus, it was confirmed that in this case we can talk about the classic "witches' rings" whose appearance is associated with the development of the mycelium. This phenomenon is well known. The mycelium of the fungus grows under the same conditions from the center at the same rate, forming a circle. Inside these rings mostly grass withers, as nutrients and water are absorbed by the mycelium. Over time, when the central part of the proliferation of mycelium dies for lack of food, while continuing to develop only in the periphery. In this case, the grass in the middle of the circle begins to develop more elaborate. Was observed in Sagan Zabe.
Story had a natural explanation. However, there were some "strange." The rate of proliferation of such mushroom rings is estimated differently in the range of about 0.1-0.5 meters a year. With known dimensions "witches 'rings' is easy to calculate the approximate age of the mycelium. In the largest of the nude — a 30-meter ring — could coming up for decades, or exceeded a hundred, or even more than one. This is hardly consistent with the statement of the informant, the rings appeared here about five years ago. Perhaps there is a subjective and erroneous assertions Govorova seeds, but the group "Irkutsk-Kosmopoisk" plans to continue monitoring the formation.