Document Details

Document Type:   Thesis
Title:   An Analysis of Vegetation and Environmental Parameters at Mitigated Wetland Sites Located in the Upper Scioto River Drainage Basin, Central Ohio
Author:   Desiree L. Lawson
College:   Science
Degree Program:   Biological Sciences, M.S.
Degree:   Master of Science
Committee Director:   Dan K. Evans, Ph.D.
Document Availability:   Document available for World-Wide access.
Date of Defense:   11/23/2004

Wetland mitigation sites must be studied to determine whether functions are being performed. Vegetation may be sampled to assess wildlife use and water quality functions; soil processes may be studied to assess nutrient cycling. Transects were established in six sites, beginning in adjacent old fields (OF), running through seasonally pooled wetlands (SP) and ending in permanently pooled wetlands (PW). Vegetation was sampled every 10 m along transects in 1 m2 quadrats. Percent cover and frequency were assessed to calculate importance values of all species. Soils were collected to a depth of 10 cm in each zone of OF, SP and PW. Soil samples were analyzed for NH4+, NO3-, N-mineralization and nitrification. Vegetation diversity (H) ranged from 2.95-3.17. Vegetation results show wildlife habitat and sediment retention functions should be provided. Results of soil parameters were variable but indicated the occurrence of nitrification, ammonification and immobilization.  

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