Modeling the Hydrologic Landscape-Scale Dispersal of Japanese Stiltgrass (Microstegium vimineum) with ArcGIS and the ArcHydro Toolbox

Ryan Schroeder
Purdue University
Ryan Schroeder is a Junior at Purdue University’s College of Agriculture studying Natural Resources and Environmental Science with minors in Soil Science and Plant Science. Since his freshman year (Fall 2013), he has conducted research under Dr. Darrell Schulze on the Integrating Spatial Educational Experiences (ISEE) soils mapping tool and began volunteering with NICHES Land Trust as a volunteer site manager the Potawatomi Trail property during the fall of 2014. In addition to being a volunteer site manager, he has assisted with numerous prescribed burns and conducted a number of independent volunteer geospatial research studies for various management/information purposes. Ryan is also the President of the Purdue Environmental Science Club (ESC) and has organized a number of club volunteer workdays with NICHES on various properties to assist in management activities. He plans on attending graduate school in a ecosystem management/soil science graduate program after graduating from Purdue in May 2017.
Other presenters/researchers: 
Contributors: Brian Pijanowksi, Purdue University; Songlin Fei, Purdue University; Bob Easter, NICHES Land Trust; Derek Luchik, The Nature Conservancy; Jarrod Doucette, Purdue University

Japanese stiltgrass (Microstegium vimineum) poses a serious ecological threat to naïve forest understory and wetland plant communities. In recent years, its dispersal rate into northern states near to the Great Lakes has increased rapidly. It has been observed that M. vimineum disperses via seed across a landscape, once introduced, via drainage ditches and surface runoff. However, little empirical data or models exists at the landscape-/property-scale to model this dispersal. This geospatial model, developed with ArcGIS and the ArcHydro tool package aims to predict the hydrologic dispersal of M. vimineum seed to create scouting maps to help guide land stewards in the efficient removal of source-patch progeny down gradient of the source patch. This poster is meant to outline the research proposal of this project and the initial investigation of the model concept. This project will become Ryan Schroeder’s Honors Thesis, a requirement for graduating with Honors and the Dean’s Scholars Certificate from Purdue University.

Poster Division: 
Student