题    目： What the Heck Is a Phreatophyte? A Field Investigation of Ecohydrologic Processes in Stream-Aquifer Systems

演 讲 者： James J. Butler Jr., Ph.D., the 2007 Darcy Distinguished Lecturer

时    间： 2007年4月12日(周四)下午2：00
地    点：北京大学英杰交流中心阳光大厅

主办单位：北京大学工学院

主 持 人：工学院能源与资源工程系 郑春苗教授

 

Abstract

 

“What the Heck Is a Phreatophyte? A Field Investigation of Ecohydrologic Processes in Stream-Aquifer Systems” is an overview of a multidisciplinary investigation of water use by phreatophytes—plants that utilize ground water—in semiarid riparian zones. Ground water consumption by nonnative phreatophytes is an issue of considerable concern in the western United States, as well as elsewhere. The lecture describes the various components of the water budget in stream-aquifer systems, with an emphasis on the contribution of riparian zone phreatophytes. The presentation highlights the ecohydrologic information embedded in water level data from shallow wells, and demonstrates its value for studies of riparian zones stressed by invasive phreatophytes and other factors.

 

About the Speaker

 

Butler is currently a senior scientist in the Geohydrology Section of the Kansas Geological Survey at the University of Kansas, where he has worked since 1986. He also serves as an associate of the KU Center for East Asian Studies and a courtesy professor in the KU Dept. of Geology. He has previously held visiting scientist positions in the Center of Applied Geoscience at the University of Tübingen (Germany) and in the Geohydrology Dept. of Sandia National Laboratory. Butler has also been a graduate researcher in the Institute of Geology of the State Seismological Bureau in Beijing, China.

 

Butler earned a B.S. in geology from the College of William and Mary, and an M.S. and Ph.D. in applied hydrogeology from Stanford University. His research interests include the development of field methods for site characterization and the assessment of hydrologic processes in stream-aquifer systems. Jim is the author of the book The Design, Performance, and Analysis of Slug Tests, as well as numerous scientific papers on various aspects of applied hydrogeology. He has served as an associate editor for Water Resources Research and the Journal of Hydrology, and is currently serving on the editorial boards of Ground Water and the Hydrogeology Journal.

 

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