Chevychelov A.P., Alekseev A.A., Kuznetsova L.I. The use of the magnetic susceptibility index of soils for the assessment of the ecological state of the soils in Yakutsk // Arctic and Subarctic Natural Resources. 2021. Vol. 26, No. 1. pp. 78–92. (In Russ.) https://doi.org/10.31242/2618-9712-2021-26-1-8
Abstract
For the first time, volumetric magnetic
susceptibility (MS) has been determined on technogenic soils in Yakutsk City,
formed on permafrost and develop in the cryoarid climate of Central Yakutia. Magnitometric
survey on the territory of Yakutsk City using an arbitrary observation network,
444 measurements of the MS of soils were carried out using a kappameter KM-7. MS
values soils in the Yakutsk City change significantly, with an average value of
163.5×10–5 SI limit changes in this indicator from 13.2 to 1220.0×10–5
SI, which indicates its high variability, when the coefficient of variation is
V = 64%. Also the average values of MS obtained for the soils of individual
streets and districts of the city, varying from 80.3 to 314.6×10–5 SI. The bulk of all values (84%) fell within the range of values less
than 250×10–5 SI, and for such intervals more than 250×10–5 SI
had to only 16% of the values from the total number of measurements. According
to the results of the study it was also found that the total indicator of
contamination of the studied soils is heavy metals (Zn, Pb, Cu) is associated with the MS strong
positive (r = 0.937) statistically significant (p = 0.95) correlation, almost
approaching linear dependence. The average value of MS of soils in Yakutsk City
is comparable to those determined for industrial areas of Moscow City (170×10–5 SI),
Perm City (183×10–5 SI), Mednogorsk City (158×10–5 SI),
and at the same time significantly lower than the values obtained for large
industrialized cities in China such as Hangzhou and Luoyang (128×10–5 SI).