Soil Biophilic Elements (С, N, Р) and Microbial Respiration Activity in Forest Parks of Moscow and Rural Forests

N. D. Ananyeva; Ананьева Н. Д.; A. V. Yudina; Юдина А. В.; A. E. Komarova; Комарова А. Е.; V. I. Vasenev; Васенев В. И.; Yu. L. Sotnikova; Сотникова Ю. Л.; M. S. Kadulin; Кадулин М. С.; A. V. Dolgikh; Долгих А. В.; A. Yu. Gorbacheva; Горбачева А. Ю.; S. V. Sushko; Сушко С. В.; K. V. Ivashchenko; Иващенко К. В.; R. Yu. Khatit; Хатит Р. Ю.; E. A. Dovletyarova; Довлетярова Э. А.

doi:10.31857/S0032180X22600780

Soil Biophilic Elements (С, N, Р) and Microbial Respiration Activity in Forest Parks of Moscow and Rural Forests

Authors: Ananyeva N.D.¹, Yudina A.V.², Komarova A.E.¹^,3, Vasenev V.I.⁴, Sotnikova Y.L.³, Kadulin M.S.⁵, Dolgikh A.V.⁶, Gorbacheva A.Y.⁵, Sushko S.V.¹^,3^,7, Ivashchenko K.V.¹^,3, Khatit R.Y.¹^,3, Dovletyarova E.A.³
Affiliations:
1. Institute of Physicochemical and Biological Problems of Soil Science, Russian Academy of Sciences
2. Dokuchaev Soil Science Institute
3. Peoples’ Friendship University of Russia
4. Soil Geography and Landscape Group, Wageningen University
5. Lomonosov Moscow State University
6. Institute of Geography, Russian Academy of Sciences
7. Agrophysical Research Institute
Issue: No 1 (2023)
Pages: 102-117
Section: ДЕГРАДАЦИЯ, ВОССТАНОВЛЕНИЕ И ОХРАНА ПОЧВ
URL: https://journals.rcsi.science/0032-180X/article/view/137829
DOI: https://doi.org/10.31857/S0032180X22600780
EDN: https://elibrary.ru/JKCORZ
ID: 137829

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Abstract

In six forest parks of Moscow and four rural forests (5 plots each, n = 50), soil physical, chemical and microbial properties of the upper 10 cm layer were assessed in combination to vegetation properties. The content of carbon (C), nitrogen (N), and phosphorus (P) in soil and microbial biomass was determined. It was revealed that soil density, pH value, content of N–\({\text{NO}}_{3}^{ - },\) Ca and heavy metals (Pb, Cu, Ni, Zn) increase in forest parks compared to rural forests. In the soil of the forest parks, a decrease in the content of microbial biomass C (C_mic), its basal respiration (BR), and microbial C- and N-availability (C_mic/C, N_mic/N, BR/C) was noted. The changes of soil microbial properties are mainly driven by the abundance of leaf litter and the content of available soil C (13–35% of the explained variance). The microbial response to the soil enrichment by low molecular weight organic substrates (carbohydrates, carboxylic and phenolic acids, amino acids, amino sugars) in forest parks and rural forests did not differ significantly. In the soils of forest parks, no changes in microbial mineralization and immobilization of P (P_mic, P_mic/P) were found as well. The impact of urbanization on the forest ecosystems has led mainly to a decrease in the intensity of processes associated with soil C and N cycles. Apparently, such changes are caused by the recreational activity and the management practice of green spaces in the city, which leads, in particular, to a decrease in the amount of forest litter in parks compared to rural forests.

Keywords

urban soils, green infrastructure, microbial biomass, mineralization of organic matter, pollution

References

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