This state represents the disturbance regime prior to Euro-American settlement and the absence of invasive plant species. Typical fire return interval is approximately 1 to 2 years.
Submodel
1.1. Prairie, Tufted Hairgrass and California Oatgrass
1.2. Encroached Prairie, Deciduous Shrubs, Oregon Ash Saplings, Oregon White Oak Saplings, Tufted Hairgrass, California Oatgrass, Grasslikes, and Forbs
This state represents post-cultivation conditions that may best fit within land-use models in future work. Weedy invasive species are usually present and competitive. Fire is excluded. Hydrology is not altered by draining or filling.
Submodel
3.1. Cropland or Pastureland
3.2. Prairie or Shrubfield, Weedy, Himalayan Blackberry, Willow, and Reed Canarygrass
This pathway represents cessation of fire over a period long enough that shade-intolerant perennials in the reference community do not recover dominance following removal of woody vegetation. Soil develop a litter layer consisting mainly of leaves.
This pathway represents tillage to the extent that root systems and seed banks of native plants are depleted. Soil litter layer is removed. Invasive plants are introduced.
This pathway represents weed control and, if needed, replanting trees.
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.
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.
) 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.
