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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>Pamela L. Nagler</dc:contributor>
  <dc:contributor>Francisco Zamora-Arroyo</dc:contributor>
  <dc:contributor>Edward P. Glenn</dc:contributor>
  <dc:creator>Lourdes Mexicano</dc:creator>
  <dc:date>2013</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;The Cienega de Santa Clara is a 5600&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span&gt;ha, anthropogenic wetland in the delta of the Colorado River in&amp;nbsp;Mexico. It is the inadvertent creation of the disposal of brackish agricultural waste water from the&amp;nbsp;U.S.&amp;nbsp;into the&amp;nbsp;intertidal zone&amp;nbsp;of the&amp;nbsp;river delta&amp;nbsp;in Mexico, but has become an internationally important wetland for resident and migratory water birds. We used high resolution&amp;nbsp;Quickbird&amp;nbsp;and WorldView-2 images to produce seasonal vegetation maps of the Cienega before, during and after a test run of the Yuma Desalting Plant, which will remove water from the inflow stream and replace it with brine. We also used moderate resolution, 16-day composite&amp;nbsp;NDVI&amp;nbsp;imagery from the&amp;nbsp;Moderate Resolution Imaging Spectrometer&amp;nbsp;(MODIS) sensors on the&amp;nbsp;Terra satellite&amp;nbsp;to determine the main factors controlling green vegetation density over the years 2000–2011. The marsh is dominated by&amp;nbsp;&lt;/span&gt;&lt;span&gt;&lt;i&gt;Typha domingensis&lt;/i&gt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;Pers. with&amp;nbsp;&lt;/span&gt;&lt;span&gt;&lt;i&gt;Phragmites australis&lt;/i&gt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;(Cav.) Trin. Ex Steud. as a sub-dominant species in shallower marsh areas. The most important factor controlling vegetation density was fire. Spring fires in 2006 and 2011 were followed by much more rapid green-up of&amp;nbsp;&lt;/span&gt;&lt;i&gt;T. domingensis&lt;/i&gt;&lt;span&gt;&amp;nbsp;in late spring and 30% higher peak summer&amp;nbsp;NDVI&amp;nbsp;values compared to non-fire years (&lt;/span&gt;&lt;i&gt;P&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span&gt;&amp;lt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span&gt;0.001). Fires removed&amp;nbsp;thatch&amp;nbsp;and returned nutrients to the water, resulting in more vigorous vegetation growth compared to non-fire years. The second significant (&lt;/span&gt;&lt;i&gt;P&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span&gt;&amp;lt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span&gt;0.01) factor controlling NDVI was flow rate of agricultural drain water from the U.S. into the marsh. Reduced summer flows in 2001 due to canal repairs, and in 2010 during the YDP test run, produced the two lowest NDVI values of the time series from 2000 to 2011 (&lt;/span&gt;&lt;i&gt;P&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span&gt;&amp;lt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span&gt;0.05).&amp;nbsp;Salinity&amp;nbsp;is a further determinant of&amp;nbsp;vegetation dynamics&amp;nbsp;as determined by greenhouse experiments, but was nearly constant over the period 2000–2011, so it was not a significant variable in regression analyses. It is concluded that any reduction in inflow volumes will result in a linear decrease in green foliage density in the marsh.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1016/j.ecoleng.2012.06.046</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Elsevier</dc:publisher>
  <dc:title>Vegetation dynamics in response to water inflow rates and fire in a brackish Typha domingensis Pers. marsh in the delta of the Colorado River, Mexico</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>