Biomass and respiration activity of soil microorganisms in anthropogenically transformed ecosystems (Moscow region)

Ivashchenko, Kristina; Ananyeva, N. D.; Vasenev, Viacheslav; Kudeyarov, V. N.; Валентини, Р.

doi:10.1134/s1064229314090051

Cited by 44 publications

(20 citation statements)

References 32 publications

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“…Furthermore, there is a tendency toward the deterioration of the functioning of the microbial community under anthropogenic transformation of the soil. Possible reasons for this are the soil compaction and contamination, and trampling may destroy the environment of the microbial community because major microbial activity (69-85%) is concentrated in the upper 10-cm-thick mineral layer (Ivashchenko et al 2014). Urban sealing also results in a decrease in soil microbial activity and functional diversity, but the influences on soil microbial diversity vary among land uses, with road pavement having the most negative effect (Wei et al 2013).…”

Section: Activities Of Biotamentioning

confidence: 97%

“…Compared with natural soils of the same region, urban soil in Nanjing, China, had a wider range of carbon (C)/N and microbe C/OC (C mic /C org ) ratios, suggesting a remarkable interference of human activities with soil microbes in the urban environment (Wang et al 2005). In Moscow, Russia, the portion of fungi decreased abruptly (by 2.5 times) in the soil of the industrial zone compared to those of the recreational zone and the natural analogue (forest; Ivashchenko et al 2014). Furthermore, there is a tendency toward the deterioration of the functioning of the microbial community under anthropogenic transformation of the soil.…”

Section: Activities Of Biotamentioning

confidence: 98%

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Formation, characteristics and eco-environmental implications of urban soils – A review

Yang

Zhang

2015

Soil Science and Plant Nutrition

121

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Soils in urban areas have versatile functions, and their ecological services, especially the ability to buffer and purify pollutants, are very much needed. However, the formation and characteristics of urban soils are strongly affected by human activities, and so are their functions. In urban areas, soil horizons are often irregularly established, with anthropogenic layers and a high degree of heterogeneity owing to human disturbance and infill. Soil structure is often under degradation due to artifacts and technogenic substrata, mechanical compaction and human trampling. Physical degradation, such as compaction and destruction of structure, may reduce the ability of urban soils in infiltrating water and storing capacity, thus causing a higher runoff and pollutant load to the receiving water bodies. Soil compaction is also believed to worsen city heat island effects by reflecting more radiation, and seriously reduce the soil gas capacity and exchange. However, soil sealing fully loses its service function, further deteriorating urban ecology and environment. Enrichment of various waste materials associated with human activities, including nutrient elements, heavy metals and organic pollution, is the major problem of the urban soil environment. Materials containing rich liming in the urban soils lead to alkaline soil conditions, which can change element speciation and activities. The main features of urban soil contamination are characterized by strong accumulation of so-called "urban elements" such as copper (Cu), zinc (Zn), lead (Pb) and mercury (Hg), but less accumulation of other heavy metals. During the process of urban development, heavy metal contamination of urban soils not only happens nowadays, but also did in the past, especially when primitive mining and metal processing prevailed. Furthermore, urban soils are often polluted by organic pollutants, especially polycyclic aromatic hydrocarbons (PAHs). Platinum group elements (PGE), especially platinum (Pt), palladium (Pd) and rhodium (Rh) from automobile exhaust catalysts, are also accumulated in urban soils as affected by traffic. Physical and chemical degradation decrease soil enzymes and microbial activities, especially in industrial zones with high concentrations of heavy metals, low concentrations of organic matter and serious compaction. Unfortunately, the evolution of urban soil and attenuation of ecological function are believed to ultimately harm human welfare. Therefore, it is very important to establish a risk assessment system for better management of urban soil resources.

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Section: Activities Of Biotamentioning

confidence: 97%

Section: Activities Of Biotamentioning

confidence: 98%

Formation, characteristics and eco-environmental implications of urban soils – A review

Yang

Zhang

2015

Soil Science and Plant Nutrition

121

View full text Add to dashboard Cite

show abstract

“…These values are Ivashchenko et al, 2014), but higher than it was expected for a recreational zone. A diverse land cover structure may be the main reason for high variability of soil properties.…”

Section: Spatial Variability Of Soil Properties In Urban Parksmentioning

confidence: 68%

“…Some papers also report on lower heterogeneity of urban parks" soils in comparison to residential, industrial or public areas Smorkalov and Vorobeichik, 2015;Horváth et al, 2017). Lower level of disturbance and a relative homogeneity promotes urban parks as a typical reference sites for soil monitoring (Ivashchenko et al, 2014;Khan et al, 2017). In our research we analyzed spatial variability and soil properties of the urban park in Moscow megapolis.…”

Section: Spatial Variability Of Soil Properties In Urban Parksmentioning

confidence: 99%

“…composts and turf-sand mixtures (Lorenz and Lal, 2009;Shchepeleva et al, 2016). High microbiological activity and soil respiration usually reported for recreational zones (Livesley et al, 2010;Ivashchenko et al, 2014) facilitate faster decomposition of SOC. The pH H2O was slightly higher than in natural reference areas but lower than in average 7.0-7.5 reported for Moscow city (Kulbachevksy, 2015).…”

Section: Spatial Variability Of Soil Properties In Urban Parksmentioning

confidence: 99%

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