Utilizza questo identificativo per citare o creare un link a questo documento:
|Titolo:||Plant performance on Mediterranean green roofs: interaction of species-specific hydraulic strategies and substrate water relations|
|Autori interni:||RAIMONDO, FABIO|
LO GULLO, Maria Assunta
|Data di pubblicazione:||2015|
|Abstract:||Recent studies have highlighted the ecological, economical and social benefits assured by green roof technology to urban areas. However, green roofs are very hostile environments for plant growth because of shallow substrate depths, high temperatures and irradiance, and wind exposure. This study provides experimental evidence for the importance of accurate selection of plant species and substrates for implementing green roofs in hot and arid regions, like the Mediterranean area. Experiments were performed on two shrub species (Arbutus unedo L. and Salvia officinalis L.) grown in green roof experimental modules with two substrates slightly differing in their water retention properties, as derived from moisture release curves. Physiological measurements were performed on both well watered and drought stressed plants. Gas exchange, leaf and xylem water potential, and plant hydraulic conductance were measured at different time intervals following the last irrigation. The substrate type significantly affected water status. A. unedo and S. officinalis showed different hydraulic responses to drought stress, with the former species being substantially isohydric and the latter one anisohydric. Both A. unedo and S. officinalis revealed to be suitable species for green roofs in the Mediterranean area. However, our data suggest that appropriate choice of substrate is key to the success of green roof installations in arid environments, especially if anisohydric species are employed.|
|Appare nelle tipologie:||14.a.1 Articolo su rivista|
File in questo prodotto:
Non ci sono file associati a questo prodotto.
- PubMed Central loading...
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.