<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Neary, D. G.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Water quality of ephemeral forest streams after site preparation with the herbicide hexazinone.</style></title><secondary-title><style face="normal" font="default" size="100%">Forest Ecology and Management 14: 23-40</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">CWT</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1986</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://cwt33.ecology.uga.edu/publications/624.pdf</style></url></web-urls></urls><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Four small watersheds were treated with 1.68 kg/ha active ingredient of hexazinone pellets. Residues in stormflow peaked in the first storm, declined rapidly thereafter, and disappeared within 7 months. Loss of hexazinone in stormflow averaged 0.53% of the applied herbicide. Suspended solid concentrations in runoff from the treated watersheds were slightly more than those of the control. Total sediment yields were increased by a factor of 2.5 due to increased runoff associated with site preparation using herbicide and salvage logging. However, sediment loadings remained below those produced by mechanical techniques and well within levels common in relatively undisturbed forests. Hexazinone treatment produced a large increase in NO3-N concentrations, which returned to normal within 2 years. Hexazinone may have stimulated nitrifying bacteria. Cation concentrations temporarily increased 30-100% as a result of hexazinone application. Overall, water quality changes were small and short-lived.</style></abstract><accession-num><style face="normal" font="default" size="100%">LTER.1986-81032</style></accession-num></record></records></xml>