Wood ash residue causes a mixture of growth promotion and toxicity in Lemna minor

Show simple item record

dc.contributor.author Jagodzinski, Lucas S.
dc.contributor.author O'Donoghue, Marian T.
dc.contributor.author Heffernan, Liam B.
dc.contributor.author van Pelt, Frank N. A. M.
dc.contributor.author O'Halloran, John
dc.contributor.author Jansen, Marcel A. K.
dc.date.accessioned 2018-02-19T11:30:03Z
dc.date.available 2018-02-19T11:30:03Z
dc.date.issued 2018-01-03
dc.identifier.citation Jagodzinski, L. S., O'Donoghue, M. T., Heffernan, L. B., van Pelt, F. N. A. M., O'Halloran, J. and Jansen, M. A. K. (2018) 'Wood ash residue causes a mixture of growth promotion and toxicity in Lemna minor', Science of The Total Environment, 625, pp. 667-676. doi: 10.1016/j.scitotenv.2017.12.233 en
dc.identifier.volume 625 en
dc.identifier.startpage 667 en
dc.identifier.endpage 676 en
dc.identifier.issn 0048-9697
dc.identifier.uri http://hdl.handle.net/10468/5476
dc.identifier.doi 10.1016/j.scitotenv.2017.12.233
dc.description.abstract The use of wood as a sustainable biofuel results in the generation of residual wood ash. The ash contains high amounts of plant macronutrients such as phosphorus, potassium, calcium as well as several micronutrients. To explore the potential use of wood ash as a fertiliser, the growth enhancing properties of Sitka spruce (Picea sitchensis Bong.) wood ash were contrasted with the potential toxic action, using common duckweed (Lemna minor L.) as a model test species. The growth of L. minor exposed to wood bottom and fly ash solids and corresponding leachates was assessed in ultra-oligotrophic and eutrophic media. Ash solids and leachates were also tested as neutralized preparations. Suspended ash solids promoted L. minor growth up to concentrations of 2.5–5 g/L. Leachates promoted growth up to 10 g ash equivalents per litre, but for bottom ash only. Beneficial effects of wood ash were most pronounced on ultra-oligotrophic medium. However, on such nutrient-deficient medium severe inhibition of L. minor biomass and frond growth was observed at relatively low concentrations of fly ash (EC50 = 14 g/L). On standard, eutrophic medium, higher concentrations of fly ash (EC50 = 21 g/L), or neutralized fly ash (EC50 = 37 g/L) were required to impede growth. Bottom ash, or neutralized bottom ash retarded growth at concentrations of 51 g/L and 74 g/L (EC50), respectively, in eutrophic medium. It appears that phytotoxicity is due to the elemental composition of the ash, its alkaline character, and possible interactions between these two properties. Growth promotion was due to the substantial content of plant nutrients. This study underlines the importance of the receiving environment (nutrient status and pH) in determining the balance between toxicity and growth promotion, and shows that the margin between growth promoting and toxicity inducing concentrations can be enlarged through ash neutralization. en
dc.description.sponsorship Department of Agriculture, Food and the Marine (Competitive Forestry Research for Development (COFORD 2008/RD/ASH)) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.uri http://www.sciencedirect.com/science/article/pii/S0048969717336677
dc.rights © 2017 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license. en
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.subject Wood ash en
dc.subject Ash suspension en
dc.subject Ash leachate en
dc.subject Solid waste en
dc.subject Toxicity en
dc.subject Growth promotion en
dc.subject pH effect en
dc.title Wood ash residue causes a mixture of growth promotion and toxicity in Lemna minor en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Marcel A.K. Jansen, School of Biological, Earth and Environmental Sciences , University College Cork, Cork, Ireland. +353-21-490-3000 Email: m.jansen@ucc.ie en
dc.internal.availability Full text available en
dc.check.date 2020-01-03
dc.date.updated 2018-02-19T11:22:52Z
dc.description.version Accepted Version en
dc.internal.rssid 423828275
dc.contributor.funder Department of Agriculture, Food and the Marine en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Science of The Total Environment en
dc.internal.copyrightchecked No !!CORA!! en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress m.jansen@ucc.ie en


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

© 2017 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license. Except where otherwise noted, this item's license is described as © 2017 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license.
This website uses cookies. By using this website, you consent to the use of cookies in accordance with the UCC Privacy and Cookies Statement. For more information about cookies and how you can disable them, visit our Privacy and Cookies statement