<?xml version='1.0' encoding='utf-8'?>
<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>Chen Yang</dc:contributor>
  <dc:contributor>Hewei Zhao</dc:contributor>
  <dc:contributor>Naxu Hu</dc:contributor>
  <dc:contributor>Ken Krauss</dc:contributor>
  <dc:contributor>Chuanyuan Deng</dc:contributor>
  <dc:contributor>Luzhen Chen</dc:contributor>
  <dc:creator>Xiaoxuan Gu</dc:creator>
  <dc:date>2021</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;Mangroves are periodically influenced in negative ways by non-freezing temperatures across their global sub-tropical range. However, physiological and morphological evidence of chilling influences to non-freezing chilling events has not been measured in field settings. In this study, we measured sap flow (&lt;/span&gt;&lt;i&gt;J&lt;/i&gt;&lt;sub&gt;&lt;i&gt;s&lt;/i&gt;&lt;/sub&gt;&lt;span&gt;) during such a chilling (but non-freezing) event in southern China and documented the reductions in&amp;nbsp;&lt;/span&gt;&lt;i&gt;J&lt;/i&gt;&lt;sub&gt;&lt;i&gt;s&lt;/i&gt;&lt;/sub&gt;&lt;span&gt;&amp;nbsp;and the recovery that ensued. We calculated tree water use (TWU) from&amp;nbsp;&lt;/span&gt;&lt;i&gt;J&lt;/i&gt;&lt;sub&gt;&lt;i&gt;s&lt;/i&gt;&lt;/sub&gt;&lt;span&gt;&amp;nbsp;measurements taken from thermal dissipation sap flow sensors on two mangrove species (&lt;/span&gt;&lt;i&gt;Sonneratia apetala&lt;/i&gt;&lt;span&gt;&amp;nbsp;and&amp;nbsp;&lt;/span&gt;&lt;i&gt;S. caseolaris&lt;/i&gt;&lt;span&gt;). This chilling event significantly injured the mangrove trees in the form of leaf scorch and massive defoliation. Diurnal variations of stem&amp;nbsp;&lt;/span&gt;&lt;i&gt;J&lt;/i&gt;&lt;sub&gt;&lt;i&gt;s&lt;/i&gt;&lt;/sub&gt;&lt;span&gt;&amp;nbsp;of both species were altered significantly after chilling. On the day of the chilling event,&amp;nbsp;&lt;/span&gt;&lt;i&gt;J&lt;/i&gt;&lt;sub&gt;&lt;i&gt;s&lt;/i&gt;&lt;/sub&gt;&lt;span&gt;&amp;nbsp;of&amp;nbsp;&lt;/span&gt;&lt;i&gt;S. caseolaris&lt;/i&gt;&lt;span&gt;&amp;nbsp;was reduced from the daily maximum of 44.1&amp;nbsp;g H&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;O m&lt;/span&gt;&lt;sup&gt;−2&lt;/sup&gt;&lt;span&gt;&amp;nbsp;s&lt;/span&gt;&lt;sup&gt;−1&lt;/sup&gt;&lt;span&gt;&amp;nbsp;to 0 immediately after chilling, which lasted throughout the remainder of the day. In contrast,&amp;nbsp;&lt;/span&gt;&lt;i&gt;S. apetala&lt;/i&gt;&lt;span&gt;&amp;nbsp;showed a certain low-temperature tolerance, while still maintaining an adequate transpiration rate after chilling, indicative of a more resilient hydraulic transport system to low temperatures. The sap flow data collected revealed substantial evidence for acute water conservation during low-temperature events, perhaps ameliorating low-temperature damage. Hence, the responses of some mangrove species with high sensitivity to low, but non-freezing, temperature (such as&amp;nbsp;&lt;/span&gt;&lt;i&gt;S. caseolaris&lt;/i&gt;&lt;span&gt;) may indicate that mangroves possess adaptive whole-tree strategies to cold temperature.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1007/s00468-021-02089-9</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Springer Nature</dc:publisher>
  <dc:title>Sap flow evidence of chilling injury and recovery in mangroves following a spring cold spell</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>