Natural Resources
Conservation Service
Tensas Basin - Pointbars, Sandbars, and Splays
Scenario model
Current ecosystem state
Select a state
Management practices/drivers
Select a transition or restoration pathway
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Transition T1A
Wind or water force causing canopy gaps.
More details -
Transition T1B
Avulsion - change in river or channel course.
More details -
Transition T1C
Clear and established the desired Community.
More details -
Transition T1D
Clear and established the desired forage or grass species.
More details -
Transition T2A
Regeneration of willows and cottonwoods.
More details -
Transition T2B
Avulsion - change in river or channel course.
More details -
Transition T2C
Clear and established the desired Community.
More details -
Transition T2D
Clear and established the desired forage or grass species.
More details -
Transition T4A
Clear and established the desired forage or grass species.
More details -
Transition T5A
Clear and established the desired Community.
More details -
No transition or restoration pathway between the selected states has been described
Target ecosystem state
Select a state
Description
Black Willow, Sandbar Willow, Cottonwood, transitioning to Cocklebur, Honey locust, Chickasaw Plum as the site dries and becomes more isolated from the river.
Dominant plant species
black willow (Salix nigra), tree
sandbar willow (Salix interior), tree
eastern cottonwood (Populus deltoides), tree
honeylocust (Gleditsia triacanthos), tree
Chickasaw plum (Prunus angustifolia), tree
Submodel
Description
Forest canopy opening potentially created in several ways that allow the understory community to receive sunlight. This state will have a continuum from sparse herbaceous ground cover from a recent occurrence of a canopy opening, to regeneration of woody species with herbaceous species then to the stage where the woody regeneration overtops the herbaceous and begins to shade them out. This continuum of colonization can be delineated as multiple phases depending on needs, and succession can be set back along the continuum.
Submodel
Description
Catastrophic river change in channel (Avulsion)
When the river changes courses for potentially multiple factors this site will be affected in potentially many ways. This site may become the location of the new channel when the river re-occupies an older course or that of another river. Conversely when the river changes course and abandons previous courses the site may lose sediment and water inputs and become drier other than in extreme events. This state potentially has multiple phases equaling or outnumbering the phases of other Ecological Sites associated with this sub-region.
Submodel
Mechanism
Wind or water force causing canopy gaps.
Mechanism
Avulsion - change in river or channel course.
Mechanism
Clear and established the desired Community.
Mechanism
Clear and established the desired forage or grass species.
Mechanism
Regeneration of willows and cottonwoods.
Mechanism
Avulsion - change in river or channel course.
Mechanism
Clear and established the desired Community.
Mechanism
Clear and established the desired forage or grass species.
Mechanism
Clear and established the desired forage or grass species.
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.
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