Seasonal and Annual Variations in Soil Respiration of the Artificial Landscapes (Moscow Botanical Garden)

Goncharova, O. Yu.; Матышак, Г. В.; Udovenko, Maria; Bobrik, A. A.; Semenyuk, O. V.

doi:10.1007/978-3-319-89602-1_15

Cited by 8 publications

(4 citation statements)

References 24 publications

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“…Overall, the estimated marginal means (EMMs) of R GF at the different green space types in May-September presented in the current study (Fig. 4) are of a similar order of magnitude (approximately 0.2-0.3 mg CO 2 m −2 s −1 ) to R S measured in urban green spaces (forest, lawn, and landscaped) in Boston (Decina et al, 2016;Garvey et al, 2022) and under coniferous and deciduous trees in a botanical garden in Moscow (Goncharova et al, 2018). Wu et al (2016) measured R S specifically at the boundary between green space and impervious surface in Beijing; the mean momentary R S values there were notably high, especially right at the impervious surface border, but in many cases decreased to a rather similar magnitude with our results when moving more than 1.5 m away from the border.…”

Section: Discussionsupporting

confidence: 70%

“…Despite the observed significant differences in soil temperature, soil moisture levels were significantly different at the measurement sites only during some individual weeks, and there was no clear pattern of some sites being significantly different from others when analysing the dataset as a whole. Uniform soil moisture conditions could possibly be one of the prominent reasons for the fact that no significant differences were observed in R GF either; according to Goncharova et al (2018), soil moisture is the main factor controlling urban R S during summer, when soil temperature has exceeded 10 °C. Another reason for the observed uniformity could be that SOC stocks at the sites were significantly different and the pattern was approximately the opposite of what was observed with soil temperature: the warmest site had the lowest SOC stock and vice versa.…”

Section: Discussionmentioning

confidence: 99%

“…Incorporating compost in urban soils, that is, increasing their SOC stock, was shown to increase R S in Liverpool (UK) (Beesley, 2014). Goncharova et al (2018) reported that in their measurements in Moscow (Russia), soil temperature was an important control for R S in spring and autumn, whereas soil moisture was the main controlling factor during summer, when soil temperature was above 10 °C, which could imply that irrigation plays a significant role in summer. Wu et al (2016) demonstrated how in Beijing (China) R S was elevated at the boundary between urban green space and impervious surface as a result of a higher soil temperature.…”

Section: Introductionmentioning

confidence: 99%

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Soil respiration across a variety of tree-covered urban green spaces in Helsinki, Finland

Karvinen,

Backman,

Järvi

et al. 2024

SOIL

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Abstract. As an increasing share of the human population is being clustered in cities, urban areas have swiftly become the epicentres of anthropogenic carbon (C) emissions. Understanding different parts of the biogenic C cycle in urban ecosystems is needed in order to assess the potential to enhance their C stocks as a cost-efficient means to balance the C emissions and mitigate climate change. Here, we conducted a field measurement campaign over three consecutive growing seasons to examine soil respiration carbon dioxide (CO2) fluxes and soil organic carbon (SOC) stocks at four measurement sites in Helsinki, representing different types of tree-covered urban green space commonly found in northern European cities. We expected to find variation in the main drivers of soil respiration – soil temperature, soil moisture, and SOC – as a result of the heterogeneity of urban landscape and that this variation would be reflected in the measured soil respiration rates. In the end, we could see fairly constant statistically significant differences between the sites in terms of soil temperature but only sporadic and seemingly momentary differences in soil moisture and soil respiration. There were also statistically significant differences in SOC stocks: the highest SOC stock was found in inactively managed deciduous urban forest and the lowest under managed streetside lawn with common linden trees. We studied the impacts of the urban heat island (UHI) effect and irrigation on heterotrophic soil respiration with process-based model simulations and found that the variation created by the UHI is relatively minor compared to the increase associated with active irrigation, especially during dry summers. We conclude that, within our study area, the observed variation in soil temperature alone was not enough to cause variation in soil respiration rates between the studied green space types, perhaps because the soil moisture conditions were uniform. Thus, irrigation could potentially be a key factor in altering the soil respiration dynamics in urban green space both within the urban area and in comparison to non-urban ecosystems.

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Section: Discussionsupporting

confidence: 70%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Soil respiration across a variety of tree-covered urban green spaces in Helsinki, Finland

Karvinen,

Backman,

Järvi

et al. 2024

SOIL

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“…In nonurban systems, microbial activity often varies with seasonality, rain pulses, or ecological succession (e.g., Cong et al, 2015;Deng et al, 2017;Tomar & Baishya, 2020). Several studies have found that soil respiration in cities likewise follows seasonal trends, with higher respiration in warmer, wetter months (e.g., Decina et al, 2016;Goncharova et al, 2017;Tao et al, 2016). As summarized in "Disturbance" section, there is also evidence of some microbial functional succession after initial land conversion.…”

Section: Heterogeneitymentioning

confidence: 99%

A framework for soil microbial ecology in urban ecosystems

Nugent

Allison

2022

Ecosphere

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Nearly all ecosystems host diverse microbiomes that support vital ecosystem processes. At the same time, these ecosystems and their microbiomes are increasingly altered by human activities, particularly in highly managed urban environments. While microbial ecologists are beginning to understand the drivers of microbial assembly and the link between community structure and function in many ecosystems, few of these advances have been applied to urban ecosystems. In this synthesis, we review research on the urban soil microbiome and develop a framework to integrate soil microbial communities with urban ecosystem function. We identify disturbance, altered resources, and heterogeneity as key drivers through which human activities including urban development affect soils and their resident microorganisms. Steep environmental gradients in many urban systems present a unique opportunity to address fundamental questions in microbial ecology, such as how microbes respond to stress and how biogeochemical rates relate to microbial diversity and composition. Soil microbiomes in cities also provide ecosystem services and harms, making it crucial to understand how human activity drives those functions and the consequences for environmental and human health. We argue that much-needed integration across disturbance ecology, urban ecology, and microbial ecology will help generate practical and equitable strategies for managing ecosystem benefits in cities where most humans now live.

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