Agronomical management of detention basin

Authors

  • Antonio Pescatore Department of Agriculture, Food, Environment, and Forestry (DAGRI), University of Florence, Piazzale delle Cascine 18, 50144, Florence https://orcid.org/0000-0002-1678-4247
  • Daniele Vergari Consorzio di Bonifica 3 Medio Valdarno, Viale della Toscana, 21, 50127, Florence
  • Simone Orlandini Department of Agriculture, Food, Environment, and Forestry (DAGRI), University of Florence, Piazzale delle Cascine 18, 50144, Florence https://orcid.org/0000-0001-6290-9752
  • Marco Napoli Department of Agriculture, Food, Environment, and Forestry (DAGRI), University of Florence, Piazzale delle Cascine 18, 50144, Florence https://orcid.org/0000-0002-7454-9341

DOI:

https://doi.org/10.36253/ijam-2239

Keywords:

carbon sequestration potential, stable soil organic carbon, soil water storage, detention basin, drainable porosity

Abstract

The importance of effective stormwater management through detention basin arrangement has become increasingly evident due to recurring extreme events in recent years. Limitations of the traditional detention basin include a reduced ability of basins to infiltrate water due to compacted soil and the carbon cost associated with the Diesel-powered tractors with lawn shredders. This study aims to compare six different agronomical management approaches for detention basins to improve the water storage capacity and the carbon sequestration potential, including the cultivation of crimson clover, white clover, tillage radish, and two mono-dicotyledonous mixes, against the conventional stable lawn-based approach. The trial was conducted in the detention basin in Castelletti (Firenze, Italy) for one growing season (2020/2021) according to a randomized complete block design with 9 replicates. Soil physical and chemical properties, as well as soil water storage capacity, were assessed to determine the feasibility of agronomical management for detention basins. Results indicated that the different treatments significantly influenced aboveground biomass production, soil organic carbon (SOC) stock, carbon sequestration potential, and water storage capacity. Specifically, crimson clover exhibited the highest aboveground biomass of around 6 t ha-1 among the treatments, while tillage radish demonstrated the greatest carbon sequestration potential (4.58 t CO2 ha-1), stable carbon stock in soil (1.14 t S-SOC ha-1), as well as the highest potential for improving the water storage volume (389 m3 ha-1) in the topsoil (0-20 cm) of the detention basin. The findings suggested also that the sowing of different mono-dicotyledonous plant mix were poorly effective in improving carbon sequestration potential and water storage volume compared to conventional basin management. To sum up, this experiment has demonstrated that alternative agronomical management practices can enhance the capacity of detention basins to store carbon and stormwater. These results provide valuable insights for improving the sustainability and functionality of detention basins.

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Published

2023-08-03

How to Cite

Pescatore, A., Vergari, D., Orlandini, S., & Napoli, M. (2023). Agronomical management of detention basin. Italian Journal of Agrometeorology, (1), 3–11. https://doi.org/10.36253/ijam-2239

Issue

No. 1 (2023)

Section

RESEARCH ARTICLES

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Copyright (c) 2023 Antonio Pescatore, Daniele Vergari, Simone Orlandini, Marco Napoli

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