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Designing Sustainable Landscapes Tidal Restrictions Metric: Final Report-October 24, 2016

The tidal restrictions metric is an element of the ecological integrity analysis of the Designing Sustainable Landscapes (DSL) project (McGarigal et al. 2014). Consisting of a composite of 21 stressor and resiliency metrics, the index of ecological integrity (IEI) assesses the relative intactness and resiliency to environmental change of ecological systems throughout the northeast. As a stressor metric, tidal restrictions uses an estimate of the historic loss of mapped salt marshes in areas where they should occur given elevation and tidal regime to indicate the location and magnitude of potential tidal restrictions. The metric estimates the effect of potential tidal restrictions on upstream wetland systems, including intertidal systems such as salt marshes, as well as freshwater systems and low-lying nonforested uplands that may have once been intertidal. Metric values range from 0 (no effect from downstream tidal restrictions) to 1 (severe effect).

Publication Date: 2016

Modification Date: Fri Mar 10 20:05:50 2017

Contributors: Bradley W. Compton , Kevin McGarigal , Scott Jackson , Joanna Grand , Ethan Plunkett , William V. DeLuca

PDF document icon DSL_documentation_tidal_restrictions.pdf — PDF document, 388 kB (397536 bytes)

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