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Article: Monitoring the performance and decline of heritage trees in urban Hong Kong

TitleMonitoring the performance and decline of heritage trees in urban Hong Kong
Authors
Issue Date2005
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/jenvman
Citation
Journal Of Environmental Management, 2005, v. 74 n. 2, p. 161-172 How to Cite?
AbstractUrban trees in Hong Kong exist in stressful and harsh habitat conditions due mainly to the exceptionally high-density development mode. This study focuses on the cream of the urban tree stock, the heritage trees, which were selected according to five sets of stringent criteria: species, dimension, structure, condition, location, and special considerations. The study area covers the main urban core of the city. The loss of trees in two periods, 1993-1998 and 1999-2003, was monitored, with the predisposing and direct causes of damages ascertained as far as possible. Of the 380 heritage specimens, 54 trees were lost in the survey period. The main predisposing causes were injuries sustained in roadwork and construction activities, both related to root damage and soil disturbance. The principal direct causes were recent gradual decline and abrupt demise due to typhoon breakage. Three pairs of contributing variables registered statistically significant associations (χ2 test), namely predisposing cause versus direct cause, tree growth form versus direct cause, and survey period versus direct cause. Principal component analysis identified three factors that explained 70% of the variance, namely tree form, tree stature, and growth environment. The main reasons for the high mortality were explored. The possible applications of the findings to improve tree protection and management were discussed in relation to the overall planning for meritorious greenery and green space especially in compact cities. © 2004 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/86355
ISSN
2015 Impact Factor: 3.131
2015 SCImago Journal Rankings: 1.206
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorJim, CYen_HK
dc.date.accessioned2010-09-06T09:15:49Z-
dc.date.available2010-09-06T09:15:49Z-
dc.date.issued2005en_HK
dc.identifier.citationJournal Of Environmental Management, 2005, v. 74 n. 2, p. 161-172en_HK
dc.identifier.issn0301-4797en_HK
dc.identifier.urihttp://hdl.handle.net/10722/86355-
dc.description.abstractUrban trees in Hong Kong exist in stressful and harsh habitat conditions due mainly to the exceptionally high-density development mode. This study focuses on the cream of the urban tree stock, the heritage trees, which were selected according to five sets of stringent criteria: species, dimension, structure, condition, location, and special considerations. The study area covers the main urban core of the city. The loss of trees in two periods, 1993-1998 and 1999-2003, was monitored, with the predisposing and direct causes of damages ascertained as far as possible. Of the 380 heritage specimens, 54 trees were lost in the survey period. The main predisposing causes were injuries sustained in roadwork and construction activities, both related to root damage and soil disturbance. The principal direct causes were recent gradual decline and abrupt demise due to typhoon breakage. Three pairs of contributing variables registered statistically significant associations (χ2 test), namely predisposing cause versus direct cause, tree growth form versus direct cause, and survey period versus direct cause. Principal component analysis identified three factors that explained 70% of the variance, namely tree form, tree stature, and growth environment. The main reasons for the high mortality were explored. The possible applications of the findings to improve tree protection and management were discussed in relation to the overall planning for meritorious greenery and green space especially in compact cities. © 2004 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/jenvmanen_HK
dc.relation.ispartofJournal of Environmental Managementen_HK
dc.subject.meshCitiesen_HK
dc.subject.meshConservation of Natural Resourcesen_HK
dc.subject.meshCultural Characteristicsen_HK
dc.subject.meshEnvironmental Monitoringen_HK
dc.subject.meshHong Kongen_HK
dc.subject.meshPopulation Dynamicsen_HK
dc.subject.meshPrincipal Component Analysisen_HK
dc.subject.meshStatistics as Topicen_HK
dc.subject.meshTimeen_HK
dc.subject.meshTrees - growth & developmenten_HK
dc.titleMonitoring the performance and decline of heritage trees in urban Hong Kongen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0301-4797&volume=74&issue=2&spage=161&epage=172&date=2005&atitle=Monitoring+the+Performance+and+Decline+of+Heritage+Trees+in+Urban+Hong+Kongen_HK
dc.identifier.emailJim, CY:hragjcy@hkucc.hku.hken_HK
dc.identifier.authorityJim, CY=rp00549en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jenvman.2004.08.014en_HK
dc.identifier.pmid15627469-
dc.identifier.scopuseid_2-s2.0-15844380941en_HK
dc.identifier.hkuros103961en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-15844380941&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume74en_HK
dc.identifier.issue2en_HK
dc.identifier.spage161en_HK
dc.identifier.epage172en_HK
dc.identifier.isiWOS:000226713600007-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridJim, CY=7006143750en_HK

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