{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T21:30:48Z","timestamp":1770154248502,"version":"3.49.0"},"reference-count":36,"publisher":"CSIRO Publishing","issue":"3","license":[{"start":{"date-parts":[[2025,8,22]],"date-time":"2025-08-22T00:00:00Z","timestamp":1755820800000},"content-version":"vor","delay-in-days":7394,"URL":"https:\/\/doi.org\/10.1071\/journalslicense"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2005,5,27]]},"abstract":"<jats:p>Certain organic compounds derived from living organisms or their decaying parts are generally accepted to induce soil water repellency. Water repellency may therefore be expected to increase with proximity to organisms releasing hydrophobic compounds. This hypothesis is tested here for Eucalyptus globulus trees, since eucalypt species are frequently associated with elevated repellency levels. In a young, first-rotation plantation on coastal dune sands in central Portugal, repeat measurements of water repellency using the \u2018Molarity of an Ethanol Droplet\u2019 (MED) test were carried out in situ between April 2001 and May 2002. On 25 dates, repellency was measured at initially 2 and later 3 distances on 2 sides of 8\u201311 randomly selected trees. On 15 occasions, additional repellency measurements were performed within small grids aside 3 of the selected trees.<\/jats:p>\n                  <jats:p>The postulated decrease in topsoil water repellency with increased distance from eucalypt tree stems was found to apply on several individual measurement dates, as well as, more unexpectedly since repellency usually is a transient phenomenon, for the study period as a whole. The results confirm the general association of eucalypt trees with water repellency, and indicate that tree stem proximity is an important but not sufficient factor to explain repellency distribution in topsoil.<\/jats:p>","DOI":"10.1071\/sr04096","type":"journal-article","created":{"date-parts":[[2005,5,27]],"date-time":"2005-05-27T01:29:26Z","timestamp":1117157366000},"page":"251-259","source":"Crossref","is-referenced-by-count":28,"title":["The role of tree stem proximity in the spatial variability of soil water repellency in a eucalypt plantation in coastal Portugal"],"prefix":"10.1071","volume":"43","author":[{"given":"J. J.","family":"Keizer","sequence":"first","affiliation":[{"name":"ACentre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, 3810-193 Aveiro, Portugal."},{"name":"CCorresponding author. Email: jkeiset@dao.ua.pt"}]},{"given":"A. J. D.","family":"Ferreira","sequence":"additional","affiliation":[{"name":"ACentre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, 3810-193 Aveiro, Portugal."}]},{"given":"C. O. A.","family":"Coelho","sequence":"additional","affiliation":[{"name":"ACentre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, 3810-193 Aveiro, Portugal."}]},{"given":"S. H.","family":"Doerr","sequence":"additional","affiliation":[{"name":"BDepartment of Geography, University of Wales Swansea, Swansea, Singleton Park, Swansea SA2 8PP, UK."}]},{"given":"M. C.","family":"Malvar","sequence":"additional","affiliation":[{"name":"ACentre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, 3810-193 Aveiro, Portugal."}]},{"given":"C. S. P.","family":"Domingues","sequence":"additional","affiliation":[{"name":"ACentre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, 3810-193 Aveiro, Portugal."}]},{"given":"I. M. B.","family":"Perez","sequence":"additional","affiliation":[{"name":"ACentre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, 3810-193 Aveiro, Portugal."}]},{"given":"C.","family":"Ruiz","sequence":"additional","affiliation":[{"name":"ACentre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, 3810-193 Aveiro, Portugal."}]},{"given":"K.","family":"Ferrari","sequence":"additional","affiliation":[{"name":"ACentre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, 3810-193 Aveiro, Portugal."}]}],"member":"67","published-online":{"date-parts":[[2005,5,25]]},"reference":[{"key":"2026020223295927600_R1","unstructured":"Almeida AC  1997 Dunas de Quiaios, G\u00e2ndara e Serra da Boa Viagem\u2014uma abordagem ecol\u00f3gica da paisagem. Funda\u00e7\u00e3o Calouste Gulbenkian, Junta Nacional de Investiga\u00e7\u00e3o Cient\u00edfica e Tecnol\u00f3gica."},{"key":"2026020223295927600_R2"},{"key":"2026020223295927600_R3","unstructured":"Coelho COA   Ferreira AJD   Baake M   Keizer JJ  2002 Impacts of prescribed shrubland fire and forest wildfire on overland flow and soil erosion generating processes. \u2018Proceedings of the 3rd International Congress Man and Soil at the Third Millenium\u2019.  Rubio JL   Morgan RPC   Asins S   Andreu V  1485 1496  Geoforma Ediciones Logro\u00f1o, Spain"},{"key":"2026020223295927600_R4"},{"key":"2026020223295927600_R5"},{"key":"2026020223295927600_R6"},{"key":"2026020223295927600_R7"},{"key":"2026020223295927600_R8","unstructured":"Dekker LW  1988 Verspreiding, oorzaken, gevolgen en verbeteringsmogelijkheden van waterafstotende gronden in Nederland. Stichting voor Bodemkartering, Rapport no.2046, Wageningen."},{"key":"2026020223295927600_R9","unstructured":"Dekker LW  1998 Moisture variability resulting from water repellency in Dutch soils. PhD thesis, Agricultural University of Wageningen, Wageningen, The Netherlands."},{"key":"2026020223295927600_R10"},{"key":"2026020223295927600_R11"},{"key":"2026020223295927600_R12"},{"key":"2026020223295927600_R13"},{"key":"2026020223295927600_R14"},{"key":"2026020223295927600_R15"},{"key":"2026020223295927600_R16"},{"key":"2026020223295927600_R17"},{"key":"2026020223295927600_R18"},{"key":"2026020223295927600_R19"},{"key":"2026020223295927600_R20","unstructured":"DRARN-Centro  1997 Rede climatol\u00f3gica das bacias hidrogr\u00e1ficas dos rios Mondego, Vouga e Lis. Minist\u00e9rio do Ambiente."},{"key":"2026020223295927600_R21"},{"key":"2026020223295927600_R22"},{"key":"2026020223295927600_R23"},{"key":"2026020223295927600_R24"},{"key":"2026020223295927600_R25"},{"key":"2026020223295927600_R26"},{"key":"2026020223295927600_R27"},{"key":"2026020223295927600_R28"},{"key":"2026020223295927600_R29"},{"key":"2026020223295927600_R30"},{"key":"2026020223295927600_R31","unstructured":"Noivo LMS  1996 Morfologia e din\u00e2mica sedimentar das Dunas de Quiaios, Portugal. Unpublished MSc thesis, University of Aveiro, Aveiro, Portugal."},{"key":"2026020223295927600_R32"},{"key":"2026020223295927600_R33","unstructured":"Ritsema CJ  1998 Flow and transport in water repellent sandy soils. PhD thesis, Agricultural University of Wageningen, Wageningen, The Netherlands."},{"key":"2026020223295927600_R34"},{"key":"2026020223295927600_R35"},{"key":"2026020223295927600_R36"}],"container-title":["Soil Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/connectsci.au\/sr\/article-pdf\/43\/3\/251\/1079093\/sr04096.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/connectsci.au\/sr\/article-pdf\/43\/3\/251\/1079093\/sr04096.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T04:30:05Z","timestamp":1770093005000},"score":1,"resource":{"primary":{"URL":"https:\/\/connectsci.au\/sr\/article\/43\/3\/251\/134533\/The-role-of-tree-stem-proximity-in-the-spatial"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2005,5,25]]},"references-count":36,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2005,5,27]]}},"URL":"https:\/\/doi.org\/10.1071\/sr04096","relation":{},"ISSN":["1838-675X","1838-6768"],"issn-type":[{"value":"1838-675X","type":"print"},{"value":"1838-6768","type":"electronic"}],"subject":[],"published":{"date-parts":[[2005,5,25]]}}}