National Park Service

South Florida/Caribbean I&M Network (SFCN)

Wetland Substrate Monitoring

Protocol

The SFCN wetland monitoring protocol development is deferred due to insufficient funding.

Resource Briefs, Reports, and Data

There are currently no additional SFCN resource briefs, reports, or data concerning this monitoring topic.

Importance/Issues

Many biogeochemical processes critical in nutrient cycling and sediment generations in the fresh water wetlands community in Everglades National Park and Big Cypress National Preserve are dependent on substrate type (marl vs. peat). Understanding the regional pattern of peat and marl and changes between these substrates is critical to interpret other processes occurring within the fresh water marshes. The extended hydroperiods proposed through CERP restoration may promote conversion from marl to peat substrates. These conversions between substrates can affect the hydroperiod in specific community types. For example, changes in soil surface elevation in cypress strand and domes dictate the hydroperiod which drives cypress community dynamics (seedling recruitment, survival, decomposition). Long-term resource management of forest wetlands requires an understanding of how soil surface elevation changes in response to seasonal wetting, shrink-swell of soils, and fire.

Monitoring Objectives

  • What are the status and trends in the extent and distribution of substrate types at landscape scales over time? Have abnormal changes occurred?
  • What are the status and trends in soil surface elevation change in cypress strands and domes over time, especially in relation to hydrology, water quality, fire, and other processes?

Approach

Unfortunately this vital sign has been deferred due to insufficient funds and staff time.

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Last Updated: February 16, 2017 Contact Webmaster