Fine root biomass and its relationship to evapotranspiration in woody and grassy vegetation covers for ecological restoration of waste storage and mining landscapes

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dc.contributor.author Yunusa, Isa en_US
dc.contributor.author Zolfaghar, Sepideh en_US
dc.contributor.author Zeppel, Melanie en_US
dc.contributor.author Li, Zheng en_US
dc.contributor.author Palmer, Anthony en_US
dc.contributor.author Eamus, Derek en_US
dc.contributor.editor en_US
dc.date.accessioned 2012-10-12T03:33:17Z
dc.date.available 2012-10-12T03:33:17Z
dc.date.issued 2012 en_US
dc.identifier 2010005693 en_US
dc.identifier.citation Yunusa Isa et al. 2012, 'Fine root biomass and its relationship to evapotranspiration in woody and grassy vegetation covers for ecological restoration of waste storage and mining landscapes', Springer New York, vol. 15, no. 1, pp. 113-127. en_US
dc.identifier.issn 1432-9840 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/18095
dc.description.abstract Production and distribution of fine roots (<= 2.0 mm diameter) are central to belowground ecological processes. This is especially true where vegetation serves as a pump to prevent saturation of soil and possible drainage of excess water into or from potentially toxic waste material stored underground or in mounds aboveground. In this study undertaken near Sydney in Australia, we determined fine root biomass and evapotranspiration (ET) on a waste disposal site restored with either a 15-year-old grass sward or plantations of mixed woody species that were either 5 years old (plantation-5) with a vigorous groundcover of pasture legumes and grasses, or 3 years old (plantation-3) with sparse groundcover. These sites were compared with nearby remnant woodland; all four were located within 0.5-km radius at the same site. Ranking of fine root biomass was in the order woodland (12.3 Mg ha(-1)) > plantation-5 (8.3 Mg ha(-1)) > grass (4.9 Mg ha(-1)) > plantation-3 (1.2 Mg ha(-1)) and was not correlated with nutrient contents in soil or plants, but reflected the form and age of the vegetation covers. Trends in root length density (RLD) and root area index (RAI) followed those in root biomass, but the differences in RAI were larger than those in biomass amongst the vegetation covers. Annual ET in the dry year of 2009 was similar in the three woody vegetation covers (652-683 mm) and was at least 15% larger than for the grass (555 mm), which experienced restrained growth in winter and periodic mowing. This resulted in drainage from the grass cover while there was no drainage from any of the woody vegetation covers. en_US
dc.language en_US
dc.publisher Springer New York en_US
dc.relation.hasversion Accepted manuscript version
dc.relation.isbasedon http://dx.doi.org/10.1007/s10021-011-9496-9 en_US
dc.title Fine root biomass and its relationship to evapotranspiration in woody and grassy vegetation covers for ecological restoration of waste storage and mining landscapes en_US
dc.parent Ecosystems en_US
dc.journal.volume 15 en_US
dc.journal.number 1 en_US
dc.publocation USA en_US
dc.identifier.startpage 113 en_US
dc.identifier.endpage 127 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 050102 en_US
dc.personcode 030005 en_US
dc.personcode 108490 en_US
dc.personcode 034078 en_US
dc.personcode 106025 en_US
dc.personcode 995490 en_US
dc.personcode 000006 en_US
dc.percentage 100 en_US
dc.classification.name Ecosystem Function en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Drainage; ecological restoration; evapotranspiration; land degradation; root area index; root biomass; root length density; waste disposal en_US
dc.staffid en_US
dc.staffid 000006 en_US


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