Screen capture from the threat assessments website

Threat Assessments on California Rangelands

Ranchers, land managers, conservation organizations, planners, and other decision makers can explore six different scenarios to determine how California rangelands and their ecosystem services might be maintained in light of future threats.

This tool was developed around six scenarios related to the question: “How can we maintain viable ranchlands and their ecosystem services in light of future integrated threats?” The scenarios represent alternative futures of climate/land use/hydrological change for the California Rangeland Conservation Coalition focus area (the foothills around the Central Valley and most of the southern Inner Coast Range).

The website provides a visualization tool to view changes in ecosystem services—such as wildlife habitat, water supply, and carbon sequestration—across scenarios and years. The tool includes the following maps:

  • Change in percentage of watershed area with critical habitat relative to 2010.
  • Percent change in grassland soil carbon sequestration potential.
  • Percent change in climatic water deficit relative to the 1981–2010 climate period.
  • Ratio of recharge to runoff for three 30-year climate periods.
  • Water-Wildlife Hotspots: areas where changes in water availability (recharge plus runoff) and loss of critical habitat coincide.
  • Average percent change in multiple ecosystem services from 2010 to 2040.

Target audiences of this assessment include ranchers, land managers, conservation organizations, planners, and decision makers. The project will: (1) help local planners minimize impacts to rangeland ecosystem services; (2) help federal and state agencies design effective conservation plans that incorporate climate change and land use change impacts; (3) help water agencies assess potential changes to water supply; (4) help conservation organizations prioritize their actions; and (5) help watershed groups in their planning efforts. Overall, the project highlights and quantifies the value of privately-owned rangelands in the Central Valley as providers of ecosystem services and evaluates the costs and benefits of conserving them.

Last modified
10 May 2024 - 12:16pm