2016
Thirty years unmanaged green roofs: Ecological research and design implications
CATALANO, Chiara, Corrado MARCENÓ, Vito Armando LAUDICINA a Riccardo GUARINOZákladní údaje
Originální název
Thirty years unmanaged green roofs: Ecological research and design implications
Autoři
CATALANO, Chiara (380 Itálie), Corrado MARCENÓ (380 Itálie, garant, domácí), Vito Armando LAUDICINA (380 Itálie) a Riccardo GUARINO (380 Itálie)
Vydání
Landscape and Urban Planning, Elsevier, 2016, 0169-2046
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 4.563
Kód RIV
RIV/00216224:14310/16:00089351
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000389866700002
Klíčová slova anglicky
Simple-intensive green roofs; Temperate ecosystems; Long term dynamics; Functional traits; Urban biodiversity; Descriptors
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 14. 4. 2017 15:50, Ing. Andrea Mikešková
Anotace
V originále
The variations in species composition and assemblage of unmanaged simple-intensive green roofs in Hannover, Germany, were investigated over a thirty year period, in order to assess the persistence of the initial seed mixture and to evaluate floristic changes. The roofs were greened in 1985 with soilbased turf rolls sown with a mixture of five grasses (Festuca rubra, Festuca ovina, Agrostis capillaris, Lolium perenne and Poa pratensis). Three sets of 120 phytosociological relevés, sampled in 1987, 1999 and 2014, have been compared to assess: (1) nestedness vs spatial turnover, (2) functional diversity and (3) the importance of vegetation dynamics on green roof performance and design. Results demonstrated that from 1987 to 1999 the species diversity increased and the species turnover prevailed over nestedness, due to the progressive niche occupation by new species. In contrast, from 1999 to 2014 species diversity remained steady, suggesting that nestedness prevailed over species turnover. The main driver of the observed functional changes was a shift towards relatively more thermoxeric conditions. In terms of plant life strategies, the competitive species sown on the roof gradually gave way to stress-tolerant and ruderal species, along with a progressive increase in species with shortdistance seed dispersal strategies. It is concluded that: (a) to create resilient green roofs, spontaneous colonisation should be accepted and considered as a design factor; and (b) regional plant communities could serve as a model for seed recruitment and installations.