File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Habitat effect on vegetation ecology and occurrence on urban masonry walls

TitleHabitat effect on vegetation ecology and occurrence on urban masonry walls
Authors
KeywordsFactor analysis
Habitat connectivity
Masonry wall
Spontaneous vegetation
Urban ecology
Urban tree flora
Issue Date2010
PublisherUrban und Fischer Verlag. The Journal's web site is located at http://www.elsevier.com/locate/ufug
Citation
Urban Forestry And Urban Greening, 2010, v. 9 n. 3, p. 169-178 How to Cite?
AbstractCities contain a diverse range of habitats that support plant establishment and persistence. This study focuses on a particular vertical artificial habitat: masonry retaining walls in Hong Kong. We explored the diversity and co-existence of different plant growth forms, synoptic assessment of habitat conditions, and relationship between habitat factors and vegetation occurrence. Some 270 walls with notable plant colonization in old districts were studied. We surveyed intrinsic wall fabric, extrinsic site condition, tree species and abundance, and other types of plant cover. The data were evaluated with the help of principal component and multiple regression analyses. A wide assemblage of species and growth forms have established spontaneously on walls. The tree flora is dominated by Moraceae (Mulberry family) members, genus Ficus (figs or banyans), and particularly Ficus microcarpa. Trees with strangler characteristics pre-adapted to grow on the vertical habitat are strongly favoured, followed by ruderals and garden escapees. Natives outnumber exotics by a large margin. Multiple wall attributes could be condensed into four factors, classified as water-nutrient supply, habitat connectivity, structure-maintenance, and habitat size. The action of habitat factors on vegetation occurrence hinges on plant growth form and dimension. The occurrence of diminutive lichen-moss is related to the fundamental sustenance water-nutrient factor. The bigger mature trees are more dependent on the larger-scale habitat size factor. The medium-sized plants, including herbs, shrubs and tree seedlings, are contingent upon the dual influence of water-nutrient and habitat connectivity. Spatial contiguity with natural ecosystem can secure continual supplies of seeds, water, nutrient, genial microclimate, and clean air to foster wall vegetation growth. The conservation of walls and their companion flora could avoid degrading or reducing these critical enabling factors. The urban ecological heritage deserves to be protected from unnecessary, misinformed and harmful impacts. © 2010 Elsevier GmbH.
Persistent Identifierhttp://hdl.handle.net/10722/125593
ISSN
2015 Impact Factor: 2.006
2015 SCImago Journal Rankings: 1.193
ISI Accession Number ID
Funding AgencyGrant Number
government's Research Grant Council
Funding Information:

We acknowledge the funding support of this study by a General Research Grant administered by the government's Research Grant Council.

References

 

DC FieldValueLanguage
dc.contributor.authorJim, CYen_HK
dc.contributor.authorChen, WYen_HK
dc.date.accessioned2010-10-31T11:40:20Z-
dc.date.available2010-10-31T11:40:20Z-
dc.date.issued2010en_HK
dc.identifier.citationUrban Forestry And Urban Greening, 2010, v. 9 n. 3, p. 169-178en_HK
dc.identifier.issn1618-8667en_HK
dc.identifier.urihttp://hdl.handle.net/10722/125593-
dc.description.abstractCities contain a diverse range of habitats that support plant establishment and persistence. This study focuses on a particular vertical artificial habitat: masonry retaining walls in Hong Kong. We explored the diversity and co-existence of different plant growth forms, synoptic assessment of habitat conditions, and relationship between habitat factors and vegetation occurrence. Some 270 walls with notable plant colonization in old districts were studied. We surveyed intrinsic wall fabric, extrinsic site condition, tree species and abundance, and other types of plant cover. The data were evaluated with the help of principal component and multiple regression analyses. A wide assemblage of species and growth forms have established spontaneously on walls. The tree flora is dominated by Moraceae (Mulberry family) members, genus Ficus (figs or banyans), and particularly Ficus microcarpa. Trees with strangler characteristics pre-adapted to grow on the vertical habitat are strongly favoured, followed by ruderals and garden escapees. Natives outnumber exotics by a large margin. Multiple wall attributes could be condensed into four factors, classified as water-nutrient supply, habitat connectivity, structure-maintenance, and habitat size. The action of habitat factors on vegetation occurrence hinges on plant growth form and dimension. The occurrence of diminutive lichen-moss is related to the fundamental sustenance water-nutrient factor. The bigger mature trees are more dependent on the larger-scale habitat size factor. The medium-sized plants, including herbs, shrubs and tree seedlings, are contingent upon the dual influence of water-nutrient and habitat connectivity. Spatial contiguity with natural ecosystem can secure continual supplies of seeds, water, nutrient, genial microclimate, and clean air to foster wall vegetation growth. The conservation of walls and their companion flora could avoid degrading or reducing these critical enabling factors. The urban ecological heritage deserves to be protected from unnecessary, misinformed and harmful impacts. © 2010 Elsevier GmbH.en_HK
dc.languageengen_HK
dc.publisherUrban und Fischer Verlag. The Journal's web site is located at http://www.elsevier.com/locate/ufugen_HK
dc.relation.ispartofUrban Forestry and Urban Greeningen_HK
dc.rightsUrban Forestry and Urban Greening. Copyright © Elsevier Science.en_HK
dc.subjectFactor analysisen_HK
dc.subjectHabitat connectivityen_HK
dc.subjectMasonry wallen_HK
dc.subjectSpontaneous vegetationen_HK
dc.subjectUrban ecologyen_HK
dc.subjectUrban tree floraen_HK
dc.titleHabitat effect on vegetation ecology and occurrence on urban masonry wallsen_HK
dc.typeArticleen_HK
dc.identifier.emailJim, CY: hragjcy@hku.hken_HK
dc.identifier.emailChen, WY: wychen@hku.hken_HK
dc.identifier.authorityJim, CY=rp00549en_HK
dc.identifier.authorityChen, WY=rp00589en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.ufug.2010.02.004en_HK
dc.identifier.scopuseid_2-s2.0-77954315516en_HK
dc.identifier.hkuros180510en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77954315516&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume9en_HK
dc.identifier.issue3en_HK
dc.identifier.spage169en_HK
dc.identifier.epage178en_HK
dc.identifier.isiWOS:000281098300001-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridJim, CY=7006143750en_HK
dc.identifier.scopusauthoridChen, WY=35728317600en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats