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Roof Greening with Native Plant Species of Dry Sandy Grasslands in Northwestern Germany

  • Green roofs can mitigate negative environmental effects of urban densifcation to some extent, but they are often covered by species-poor Sedum mixtures with a low value for biodiversity. By combining a habitat template and a seedprovenance approach, we review the suitability of plant species from regionally occurring dry sandy grasslands (Koelerio-Corynophoretea) for extensive roof greening in northwestern Germany. Since 2015, we have studied the effects of species introduction on vegetation dynamics on experimental mini-roofs. Treatments included sowing seeds of regional native origin in two densities (1 g and 2 g/m2) and the transfer of raked material from an ancient dry grassland area classifed as Natura 2000 site. The applied raked material contained diaspores of 27 vascular plant species (including seven threatened species) and vegetative fragments of grasslandspecifc mosses and lichens. Since 2018, we have tested more species-rich seed mixtures in a large-scale experiment on a roof of 500 m2 with different engineered green-roof substrates and layering. In 2019, a green roof of 10,200 m2 was established in cooperation with a local enterprise to support regional native biodiversity. In this chapter, we summarise the most important results of our studies and discuss how to support regional native biodiversity on green roofs.

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Author:Kathrin KiehlORCiD, Daniel Jeschke, Roland Schröder
Title (English):Roof Greening with Native Plant Species of Dry Sandy Grasslands in Northwestern Germany
Parent Title (English):Urban Services to Ecosystems Green Infrastructure Benefits from the Landscape to the Urban Scale
Publisher:Springer International Publishing
Place of publication:Cham
Document Type:Part of a Book
Year of Completion:2021
Identifier:Zur Anzeige in scinos
electronic ID:Zur Anzeige in scinos
Release Date:2024/01/08
Tag:Eco-building; Ecological Networks; Green Infrastructure; Holistic Design; Human-made habitats
First Page:115
Last Page:129
Zugriff im Hochschulnetz
Faculties:Fakultät AuL
DDC classes:500 Naturwissenschaften und Mathematik / 500 Naturwissenschaften
Review Status:Veröffentlichte Fassung/Verlagsversion