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Evolution of Physico-Chemical Properties, Microbial Biomass and Microbial Activity of an Urban Soil after De-Sealing

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  • Giancarlo Renella

    (Department of Agronomy Food Natural Resources Animals and Environment (DAFNAE), University of Padua, Viale dell’Università 16, 35020 Legnaro, Italy)

Abstract

Recovery of soil fertility after de-sealing of urban soils is still poorly known. This work studied the time-related dynamics of soil physico-chemical and biochemical endpoints of urban soil in the city in Naples (Southern Italy), de-sealed for different time during construction works, that underwent colonization by volunteer plants. The results showed de-sealing decreased the soil bulk density and the soil pH value, increased the electrical conductivity (EC), total organic C (TOC) and extractable carbohydrates (TEC), total and inorganic N contents, soil basal respiration (SBR), soil microbial biomass C (MBC) and soil microbial biomass N (MBN), the substrate induced respiration (SIR) value, and enzyme activities involved in C, N, P and S mineralization. The TEC, total and inorganic N, SBR and microbial biochemical endpoints were higher in the de-sealed soils than those of an arable soil of the same area. The results show that de-sealed urban soils rapidly increase their physical, chemical and biological fertility even with no intervention, especially when they are colonized by volunteer plants.

Suggested Citation

  • Giancarlo Renella, 2020. "Evolution of Physico-Chemical Properties, Microbial Biomass and Microbial Activity of an Urban Soil after De-Sealing," Agriculture, MDPI, vol. 10(12), pages 1-11, December.
    • Handle: RePEc:gam:jagris:v:10:y:2020:i:12:p:596-:d:455137
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    Cited by:

    1. Pasquale Napoletano & Claudio Colombo & Erika Di Iorio & Valeria Memoli & Speranza Claudia Panico & Anna Gabriella Ruggiero & Lucia Santorufo & Giulia Maisto & Anna De Marco, 2021. "Integrated Approach for Quality Assessment of Technosols in Experimental Mesocosms," Sustainability, MDPI, vol. 13(16), pages 1-20, August.

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