{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T10:46:22Z","timestamp":1791024382569,"version":"4.1.0"},"reference-count":36,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2003,11,1]],"date-time":"2003-11-01T00:00:00Z","timestamp":1067644800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"New Zealand Foundation for Research, Science, and Technology"}],"content-domain":{"domain":["acsess.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Env Quality"],"published-print":{"date-parts":[[2003,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Allophanic soils are widespread around the world, but little research has been done on their transport properties. This study reveals the effect of two soil water potential heads and two water\u2010flow regimes of continuous and intermittent flow on solute transport through undisturbed soil columns of Horotiu silt loam (Typic Hapludand), an allophanic soil. Two different methods\u2014breakthrough curves (BTCs) and time domain reflectometry (TDR)\u2014were employed to determine the extent of preferential solute transport in the topsoil. The TDR data were also used to look at the depth dependence of the transport properties. The convection\u2013dispersion equation (CDE) with the appropriate boundary conditions adequately described the movement of both Br and Cl under the various flow conditions. Although no preferential flow was found under the imposed unsaturated flow conditions, the flow of water and transport of solute became more uniform with depth. The results show that both Br and Cl are retarded in this allophanic soil. Retardation values range from 1.5 to 1.9, and, as the TDR data showed, increase from the depth of 5.0 to 10.0 cm. Intermittent leaching results showed that there was no effect on solute concentrations in the leachate following no\u2010flow periods. This suggests that water and solute transport in this soil were either relatively uniform or that transverse mixing during flow was already fast enough to eliminate concentration gradients between regions of different \u201cmobility.\u201d<\/jats:p>","DOI":"10.2134\/jeq2003.2325","type":"journal-article","created":{"date-parts":[[2010,6,14]],"date-time":"2010-06-14T02:34:11Z","timestamp":1276482851000},"page":"2325-2333","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Solute Movement through an Allophanic Soil"],"prefix":"10.1002","volume":"32","author":[{"given":"G. N.","family":"Magesan","sequence":"first","affiliation":[{"name":"Forest Research Private Bag 3020 Rotorua New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I.","family":"Vogeler","sequence":"additional","affiliation":[{"name":"HortResearch Private Bag 11030 Palmerston North New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B. E.","family":"Clothier","sequence":"additional","affiliation":[{"name":"HortResearch Private Bag 11030 Palmerston North New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S. 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