Biological indicators in the environmental monitoring of gray forest soil of agrosystems

Document Type : Research Paper

Authors

1 Upper Volga Federal Agrarian Research Center, Suzdal

2 Russian State Agrarian University, Moscow Timiryazev Agricultural Academy, Moscow

3 A.G. Stoletov and N.G. Stoletov Vladimir State University

Abstract

The objective was to monitor the biological indicators to assess the ecological sustainability of gray forest soil, due to the different level of agrotechnical burden on agricultural landscapes. During 10 years of research (2011-2020) the number of bacteria using various forms of nitrogen was continuously decreasing on the background of mineral intensification. The total average pool of active microflora on organomineral and mineral backgrounds in moulboard plowing was 20.1 and 16.1 million CFU g-1 of soil, respectively, during the period of observations. In non-moldboard plowing, the same average pool was 18.8 and 15.9 million CFU g-1. The minimum pool was maintained on a high-intensity mineral background in moldboard plowing, amounting to 14.5 million CFU g-1 of soil. The decrease in the total bacterial number in the soil of mineral backgrounds indicates a deterioration in their ecological stability. The calculated ecological and trophic indices indicate less ecologically stable low-intensity mineral background in moldboard plowing. This variant showed relatively low values of humus accumulation coefficients (Ch = 0.39) and transformation of organic residues into soil organic matter (Ct = 5.4) established at the highest mineralization coefficient (Cm = 1.57). In this soil, mineralization of organic matter prevails, which reduces its fertility and environmental sustainability. On this background, the activity of the studied enzymes was lower than in other variants and in the soil deposits. A set of micromycetes has shown to grow on mineral intensification backgrounds, especially on a high-intensity mineral background, where moldboard plowing was used as the main treatment. The lowest phytotoxicity was noted on a high-intensity organic-mineral intensification background –21.4%. Both microbiological and biochemical parameters represents an informative diagnostic feature of the ecological state of agrolandscapes. They ensure an objective assessment of the efficiency and degree of agrotechnical burden, predicting a decrease in environmental sustainability on mineral intensification backgrounds.

Keywords

References

Ananieva, ND, Blagodatskaia, EV & Demkina, TS 2002, Assessment of the stability of soil microbial complexes to natural and anthropogenic stresses. Soil science, 5: 580 - 587.
Bagheri, S, Zare-Maivan, H, Heydari, M, Kazempour Osaloo, SH 2020, Relationship between broadleaved mixed forest understory species groups with soil and elevation in a semi-arid Persian oak (Quercus brantii L.) ecosystem. Caspian Journal of Environmental Sciences, 18: 157-170.
Сonrad, R 2006, Soil microorganisms as controlles of atmospheric trace gases (H2, CO, CH4, OCS, N2O, and NO). Microbiological Reviews, 60: 609-640.
Dalir, P, Naghdi, R, Gholami, V 2021, Assessing the rice straw effects on the soil erosion rate in forest road cut slope embankments. Caspian Journal of Environmental Sciences, 19: 325-339.
Danilova, AA, 2006, A method for measuring total phytotoxicity of a set of microscopic soil fungi. Patent No. 02315111.
Dighton, J 1997, Is it possible to develop microbial test systems to evaluate pollution effects on soil nutrient cycling? Ecological Risk Assessment of Contaminants in Soil, Chapman& Hall, London, P. 51-69.
Dobrovolskaia, TR, Zviagintsev, DR, Chernov, IIu, Holovchenko, AV, Zenova, DM, Lysak, LV, Manucharova, NA, Marfenina, OE, Polianskaia, LM, Stepanov, AL & Umarov MM 2015, The role of microorganisms in the ecological functions of soils. Soil science, 9: 1087-1096.
Gholoubi, A, Emami, H, Alizadeh, A, Azadi, R 2019, Long term effects of deforestation on soil attributes: case study, Northern Iran. Caspian Journal of Environmental Sciences, 17: 73-81.
Griffiths, BS, Bonkowski, M, Dobson, G & Caul, S 1999, Changes in soil microbial community structurein the presence of microbial- feeding nematodes and protozoa. Pedobioligia, 43: 297-304.
Izguierdo, IF, Caravaca, MM, AlguacilG., Fernandez A.  Rolda 2005, Applied Soil Ecology, 30: 3-10.
Katsairou, E, Deng, Sh, Nofziger, DL & Gerakis, A 2010, Long-term management effects on organic C and N pools and activities of C- transforming enzimes in prairie soils. European Journal of Soil Biology, 46: 335-341.
Lal, R 1998, Basic concepts and global issues soil guality andagricultural sustainability. Soil Quality and Agricultural Sustainability. Ann Arbor Science, Chelsea, MI, USA, pp. 3-12.
Masiutenko, NP, Kuznetsov, AV, Masiutenko, MN, et al. 2014, The system of assessment and regulation of anthropogenic load for the formation of ecologically balanced agricultural landscapes. Kursk, 188 p.
Mirsaleh Gilani, F, Eslami, A.R., Naseri, B, Badr, F 2020, Effects of ecological condition on seed germination of horizontal cypress in Hyrcanian forests. Caspian Journal of Environmental Sciences, 18:171-179.
Mosier, AR 1998, Soil processes and global change. Biology and Fertility of Soils, 27: 221-229.
Polianskaia, LM, Prikhodko, VE, Lomakin, DG, & Chernov, IIu 2016, Abundance and biomass of microorganisms in ancient buried soils and modern chernozems of different land use. Soil science, 10: 1191-1204.
Schimel, JP,Gulledge, GM,Clein-Curley, GS, et al. 1999, Moisture effects on microbial activity and community structure in decomposing birch litter in the Alaska taiga. Soil Biology & Biochemistry, 31: 831-838.
Tepper, EZ, Shilnikova, VK & Pereverzeva, GI 1987, Workshop on Microbiology. Moscow, Agropromizdat, 238 p.
Tereshchenko, NN & Bubina, AB 2009, Microbiological criteria for the ecological stability of the soil and the effectiveness of soil protection technologies. Bulletin of Tomsk State University, Biology, 3: 42-62.
Zinchenko, MK 2014, Formation of biogenicity of gray forest soil in agrolandscapes of the Vladimirsky high plane under the influence of various systems of fertilizers. Vladimirsky zemledelets, 4: 12-14.
Zinchenko, MK, Sharkevich, VV & Fedulova, ID 2018, Microbiological aspects of adaptive landscape agriculture in the Vladimirsky high plane. Vladimirsky zemledelets, 1: 14-19. 
Caspian Journal of Environmental Sciences
Volume 19, Issue 5
Special Issue: Environmental Concepts in Agriculture
December 2021
Pages 891-896

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