J 2016

Thirty years unmanaged green roofs: Ecological research and design implications

CATALANO, Chiara, Corrado MARCENÓ, Vito Armando LAUDICINA a Riccardo GUARINO

Základní 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

Štítky

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.