A Regional Guidebook for Applying the Hydrogeomorphic Approach to Assessing Wetland Functions of Low-Gradient, Blackwater Riverine Wetlands in Peninsular Florida
Abstract
The Hydrogeomorphic (HGM) Approach is a collection of concepts and methods for developing functional indices and subsequently using them to assess the capacity of a wetland to perform functions relative to similar wetlands in a region. The approach was initially designed to be used in the context of the Clean Water Act Section 404 Regulatory Program permit review sequence to consider alternatives, minimize impacts, assess unavoidable project impacts, determine mitigation requirements, and monitor the success of mitigation projects. However, a variety of other potential applications for the approach have been identified including determining minimal effects under the Food Security Act, designing mitigation projects, and managing wetlands. This report uses the HMG Approach to develop a Regional Guidebook for assessing the functions of low-gradient blackwater riverine wetlands in peninsular Florida. The report begins with a characterization of low-gradient blackwater riverine wetlands in peninsular Florida, then discusses (a) the rationale used to select functions, (b) the rationale used to select model variables and metrics, (c) the rationale used to develop assessment models, and (d) the data from reference wetlands used to calibrate model variables and assessment models. Finally, it outlines an assessment protocol for using the model variables and functional indices to assess low-gradient blackwater riverine wetlands in peninsular Florida.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2003
- Accession Number
- ADA414221
Entities
People
- Christina Uranowski
- Craig Huegel
- Joseph Garcia
- Michael Delcharco
- Zhongyan Lin
Organizations
- Engineer Research and Development Center