Skip to main content
U.S. flag

An official website of the United States government

Sap probe install

Detailed Description

EESC USGS Mendenhall Fellow Justine Neville installing sap flow probes at Blackwater National Wildlife Refuge with USGS colleague Ken Krauss from USGS Wetland and Aquatic Research Center in Lafayette, LA. Sap flow probes will be used to monitor transpiration rates in coastal forests to assess the water usage of trees experiencing stress from inundation. For more information, contact David Walters at


Public Domain.