GRAVELLY 10-12
Scenario model
Current ecosystem state
Select a state
Management practices/drivers
Select a transition or restoration pathway
- Transition T1A More details
- Transition T2A More details
-
No transition or restoration pathway between the selected states has been described
Target ecosystem state
Select a state
Description
The Reference State (State 1), moves through many phases depending on the natural disturbances that impact the community over time. State 1, described later, indicates some of these phases. Community 1.1 is dominated by Wyoming big sagebrush, antelope bitterbrush and bluebunch wheatgrass. Subdominant species include Thurber’s needlegrass, Sandberg bluegrass and Indian ricegrass, arrowleaf balsamroot and tapertip hawksbeard.
Submodel
Description
The Eroded State occurs when there has been soil loss and altered hydrologic cycle.
Submodel
Mechanism
Develops through frequent fire and without prescribed grazing management. This site has crossed the threshold. It is economically impractical to return this site to State 1.
Mechanism
Excessive soil loss and changes in the hydrologic cycle caused by continued improper grazing management and/or frequent fire cause this state to retrogress to a new site with reduced potential. This site has crossed the threshold. It is economically impractical to return this site to State 1.
Model keys
Briefcase
Add ecological sites and Major Land Resource Areas to your briefcase by clicking on the briefcase (
) icon wherever it occurs. Drag and drop items to reorder. Cookies are used to store briefcase items between browsing sessions. Because of this, the number of items that can be added to your briefcase is limited, and briefcase items added on one device and browser cannot be accessed from another device or browser. Users who do not wish to place cookies on their devices should not use the briefcase tool. Briefcase cookies serve no other purpose than described here and are deleted whenever browsing history is cleared.
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.