Testing decontaminated sediments as a substrate for ornamentals in field nursery plantations

Autor: Fabrizio Ungaro, Carlos Garcia Izquierdo, Francesco Sabatini, Giuseppe Mario Lanini, Cristina Macci, Grazia Masciandaro, Luciano Massetti, Maurizio Antonetti, Francesca Ugolini, Stefania Pollaki, Costanza Calzolari, Giacomo Tagliaferri, Daniele Massa, Antonio Raschi
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Journal of environmental management (Online) 197 (2017): 681–693. doi:10.1016/j.jenvman.2017.03.064
info:cnr-pdr/source/autori:Ugolini F.; Calzolari C.; Lanini G.M.; Massetti L.; Pollaki S.; Raschi A.; Sabatini F.; Tagliaferri G.; Ungaro F.; Massa D.; Antonetti M.; Izquierdo C.G.; Macci C.; Masciandaro G./titolo:Testing decontaminated sediments as a substrate for ornamentals in field nursery plantations/doi:10.1016%2Fj.jenvman.2017.03.064/rivista:Journal of environmental management (Online)/anno:2017/pagina_da:681/pagina_a:693/intervallo_pagine:681–693/volume:197
DOI: 10.1016/j.jenvman.2017.03.064
Popis: When canals and harbours are dredged, huge amount of polluted sediments has to be stocked and transported to the landfill with incredibly high costs of management. Among the remediation techniques for the reclamation of polluted sediments and soils, phytoremediation represents a sustainable and effective technique though still not fully promoted or commercialized. In this study we have tested the suitability for plant nursing of a substrate resulting from sediments dredged from a canal and treated with phytoremediation. The experiment was set up in 2014. It aimed to test the physical, chemical and hydrological characteristics of two mixes of remediated sediments and agronomic soil (at 33% and 50% by volume) compared to control soil (100% agronomic soil), and to assess the growth of three ornamental species (Viburnum tinus L., Photinia x fraseri var. red robin, Eleagnus macrophylla Thunb.) together with the suitability for root balling. The mixed substrates produced good results in terms of water drainage, and were similar to the control in terms of soluble nutrients, guaranteeing and enhancing the aboveground and belowground growth of all the three species, especially V. tinus. In contrast, mixed substrates impaired root ball compaction with root ball breakage observed especially in 50% sediment/soil mix. Therefore, the use of remediated sediments in plant nursery can be limited to specific productions or practices.
Databáze: OpenAIRE