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VEGETATION <br /> Summary <br /> Existing vegetation on site has developed in response to <br /> agricultural and gravel mining practices. It includes a <br /> substantial number of introduced weedy species as well as <br /> native prairie and sedge meadow types. The major impact <br /> on vegetation resulting from gravel mining will be its <br /> destruction as mining proceeds. The impact from dust on <br /> surrounding vegetation will be minimal. <br /> The impacts from surface disturbance can be mitigated by <br /> reclamation of the land surface and revegetation with native <br /> • species . <br /> Description of Plant Communities <br /> Five natural vegetation types occur as remnants at the Deepe <br /> Farm site. Descriptions of these plant communities are <br /> based on field observations and on a limited sampling program <br /> conducted by Warren R. Keammerer, Ph.D. , of Stoecker- <br /> Keammerer & Associates . Frequency values for the herbaceous <br /> species were determined using 10 quadrats , one square meter <br /> in area, located in each of the types . Sampling was conducted <br /> • in early October, so early-flowering species are poorly <br /> represented in the sample. The five types of natural vegetation <br /> are tall grass prairie, short grass prairie, sedge meadow, <br /> (• F-1 <br />