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Article: Ecological and landscape rehabilitation of a quarry site in Hong Kong

TitleEcological and landscape rehabilitation of a quarry site in Hong Kong
Authors
KeywordsDisturbed Land
Ecological Rehabilitation
Ecosystem Reconstitution
Hong Kong
Landform Replication
Landscape Restoration
Quarry Rehabilitation
Soil Problems
Issue Date2001
PublisherBlackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journals/REC
Citation
Restoration Ecology, 2001, v. 9 n. 1, p. 85-94 How to Cite?
AbstractQuarrying for granite in Hong Kong, mainly for construction aggregates, has left huge and unsightly scars on the landscape. Recent government policy demands rehabilitation of the disturbed lands and restoration of the landscape adopting the ecological approach. At an active quarry, a method was tested for controlled restoration: blasting of the vertical rocky production faces to pile up the debris and to form artificial slopes that mimic those of the environs in a landform replication approach. On the scree blast piles, a soil cap of fine-earth materials with organic amendments was installed to grow mainly tropical leguminous trees. The restoration trial largely failed, with extensive death or poor performance of most plants. The inability of the soil and the site to support vegetation was investigated. The main physical problems are shallow solum, large cavities in the bouldery substrate, high stone content, excessively coarse texture, compaction, and limited available-moisture storage. The main chemical problems are the lack of nitrogen and phosphorus related to the meager organic-matter content, low cation exchange capacity, and base saturation. Suggestions are made to ameliorate habitat conditions for plant growth in a comprehensive ecosystem-reconstitution package that encompasses the landform, hydrology, microclimate, soil, and plant assemblage. Recommendations are given on the application of organic amendments to establish and maintain soil structure, restore decomposition regime, and raise nutrient and moisture storage capacities for a modified approach that could overcome the site difficulties.
Persistent Identifierhttp://hdl.handle.net/10722/157827
ISSN
2015 Impact Factor: 1.891
2015 SCImago Journal Rankings: 0.985
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorJim, CYen_US
dc.date.accessioned2012-08-08T08:55:51Z-
dc.date.available2012-08-08T08:55:51Z-
dc.date.issued2001en_US
dc.identifier.citationRestoration Ecology, 2001, v. 9 n. 1, p. 85-94en_US
dc.identifier.issn1061-2971en_US
dc.identifier.urihttp://hdl.handle.net/10722/157827-
dc.description.abstractQuarrying for granite in Hong Kong, mainly for construction aggregates, has left huge and unsightly scars on the landscape. Recent government policy demands rehabilitation of the disturbed lands and restoration of the landscape adopting the ecological approach. At an active quarry, a method was tested for controlled restoration: blasting of the vertical rocky production faces to pile up the debris and to form artificial slopes that mimic those of the environs in a landform replication approach. On the scree blast piles, a soil cap of fine-earth materials with organic amendments was installed to grow mainly tropical leguminous trees. The restoration trial largely failed, with extensive death or poor performance of most plants. The inability of the soil and the site to support vegetation was investigated. The main physical problems are shallow solum, large cavities in the bouldery substrate, high stone content, excessively coarse texture, compaction, and limited available-moisture storage. The main chemical problems are the lack of nitrogen and phosphorus related to the meager organic-matter content, low cation exchange capacity, and base saturation. Suggestions are made to ameliorate habitat conditions for plant growth in a comprehensive ecosystem-reconstitution package that encompasses the landform, hydrology, microclimate, soil, and plant assemblage. Recommendations are given on the application of organic amendments to establish and maintain soil structure, restore decomposition regime, and raise nutrient and moisture storage capacities for a modified approach that could overcome the site difficulties.en_US
dc.languageengen_US
dc.publisherBlackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journals/RECen_US
dc.relation.ispartofRestoration Ecologyen_US
dc.subjectDisturbed Landen_US
dc.subjectEcological Rehabilitationen_US
dc.subjectEcosystem Reconstitutionen_US
dc.subjectHong Kongen_US
dc.subjectLandform Replicationen_US
dc.subjectLandscape Restorationen_US
dc.subjectQuarry Rehabilitationen_US
dc.subjectSoil Problemsen_US
dc.titleEcological and landscape rehabilitation of a quarry site in Hong Kongen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1061-2971&volume=9&issue=1&spage=85&epage=94&date=2001&atitle=Ecological+and+landscape+rehabilitation+of+a+quarry+site+in+Hong+Kong-
dc.identifier.emailJim, CY: hragjcy@hkucc.hku.hken_US
dc.identifier.authorityJim, CY=rp00549en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1046/j.1526-100X.2001.009001085.xen_US
dc.identifier.scopuseid_2-s2.0-0035089743en_US
dc.identifier.hkuros57497-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035089743&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume9en_US
dc.identifier.issue1en_US
dc.identifier.spage85en_US
dc.identifier.epage94en_US
dc.identifier.isiWOS:000167428700009-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridJim, CY=7006143750en_US

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