Effects of Soil Amendments and Other Practices on the Success of VDOT Non-tidal Wetland Mitigation E

Project No: 72987

Target Completion Date: June 9, 2005 Environment, Planning, and Economics

About the project:

The purpose of the study is to determine the effects of various soil amendments (compost, wood chips, etc.) and cultural treatments (ripping, lime, topsoil, fertilizer) on the establishment, persistence, and vigor of planted wetland vegetation and seed bank/volunteer vegetation. This will be accomplished by determining the differential effects of organic amendment vs. the use of returned native topsoil on the return of hydric soil conditions; measuring the influence of tillage on improving soil quality; specifying the effects of liming and fertilizing on plant materials; determining the important interactions of organic additions, tillage and other soil amendments on mitigation success; and assessing the relative success of VDOT mitigation site design and construction practices. The findings from this study will provide VDOT with optimal rates of organic application and/or remedial tillage for mitigation site construction. This, in turn, will result in the construction of more successful wetlands, helping VDOT fulfill its regulatory obligations. Ultimately, this will result in significant cost savings for VDOT.

Project Team

Principal Investigators

Last updated: July 5, 2023

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