Figure 917

Affairs Office.

Organizational chart of the Corps of Engineers at the Waterways Experiment Station in Vicksburg, Mississippi. (Adapted from Public No date. Summary of Capabilities. Waterways Experiment Station, U.S. Army Corps of Engineers, Vicksburg, MS.)

Waterways Experiment Station
FIGURE 9.18 View of the Wetlands Field Lab at the Ohio State University. (From William Mitsch. Ohio State University, Columbus, OH. With permission.)

sity campus in Columbus. This is a 307-acre (123-ha) outdoor lab composed of a set of natural and constructed wetlands that was initiated in 1994 by William Mitsch. The purpose of the lab is to foster research and education on wetland ecology and engineering. Development of the lab is in progress, and it will ultimately include a number of features (Figure 9.18). Presently, the site is dominated by two 2.5 acre (1 ha) kidney-shaped constructed marshes that are supported by a flow-through pumping of the adjacent Olentangy River. Water is pumped continuously into the two wetlands and then flows by gravity back into the river. An experiment in planting strategies is being undertaken with one wetland receiving an intentional planting effort of known species while the other wetland received no intentional plantings but is self-designing a plant community from volunteer species. Preliminary results demonstrate many similarities between the wetlands (Mitsch et al., 1998), and the plan is to continue this study indefinitely with contributions by OSU students and faculty. The site also includes a number of replicated wetland mesocosms for small-scale research and several other experimental wetland cells. A variety of educational uses are made of the site, which is facilitated by its location on the OSU campus (Mitsch, 1998c). The strengths of the Olentangy River Wetland Research Park are

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