Land-cover Modeling at USGS Earth Resources Observation and Science (EROS) Center

Science Center Objects

Land-use change and the resultant changes in land cover impact a wide variety of ecological processes. Projected land-cover data produced by EROS have been used for a wide variety of applications, including those listed in the left column. The following provides a partial list of published applications for modeled land-use and land-cover data.

Projected land-use and land-cover (LULC) classes for the A1B scenario

Projected land-use and land-cover (LULC) classes for the A1B scenario to 2050 for the western United States, and resultant terrestrial carbon storage.

Biochemical Cycling and Greenhouse Gas Fluxes

Land use and land cover are important for determining the magnitude and geographic distribution of greenhouse gas exchanges between the terrestrial biosphere and the atmosphere. However, a lack of consistent, multiple-date land-cover data has made it difficult to examine temporal patterns of land-cover change and the resultant changes in greenhouse gas fluxes. Consistent, annual, scenario-based land-cover maps allow biogeochemical modelers to quantify potential future greenhouse gas fluxes resulting from land-cover change.

Biodiversity

Land-use and land-cover change has a direct impact on habitat and conservation planning issues. By providing future scenarios of land-use and land-cover change, conservation planners can answer the basic questions of how much habitat is available, what are the potential future geographic distributions, and where should efforts be made to protect or restore habitat?

Hydrology

Land cover affects hydrologic processes by altering water infiltration into the soil, affecting energy budgets and evaporation, and changing water routing and sediment flow. Linking future land-cover models with hydrologic modeling frameworks allows researchers to determine potential future hydrologic regimes under multiple potential land-cover scenarios. Understanding potential future hydrologic processes enables planned management of water resources and facilitates analysis of future vulnerabilities associated with hydrologic change, including flood risk and water-quality issues.

Other Applications