Northern Salt Marsh
Scenario model
Current ecosystem state
Select a state
Management practices/drivers
Select a transition or restoration pathway
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Transition T1A
Extreme disturbance event coupled with excessive grazing pressure
More details -
Restoration pathway R2A
Absence of disturbance, reintroduction of native species and natural regeneration over time
More details -
No transition or restoration pathway between the selected states has been described
Target ecosystem state
Select a state
Description
The Reference state is considered to be representative of pre-Euro settlement conditions. Historically the marsh was highly variable in both microtopography and vegetation. Community phase changes are primarily driven by flooding of ocean tides, which vary seasonally and from year-to-year in their extent, duration, depth, and degree of salinity. As well as freshwater inflows which move into the marsh as sheet flow from adjacent areas following precipitation events or result from flood overflow of streams that cross through the marsh from inland areas.
Submodel
Mechanism
Heavy overgrazing or a hurricane can cause the transition to State 2. The Degraded Salt Marsh Community (1.2) is at risk to transition, as is the Hurricane Impacted Community (1.3) if the site is not allowed to revegetate.
Model keys
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Ecological sites
Major Land Resource Areas
The Ecosystem Dynamics Interpretive Tool is an information system framework developed by the USDA-ARS Jornada Experimental Range, USDA Natural Resources Conservation Service, and New Mexico State University.