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Land Cover & Land Use Change

Land Cover & Land Use Change. Presentation outline. Drivers (causes) of change Measuring landuse/landcover change Consquences for the environment Regions at risk Addressing landuse/landcover change. Worldwide extent of human land-use and land-cover change

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Land Cover & Land Use Change

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  1. Land Cover & Land UseChange

  2. Presentation outline • Drivers (causes) of change • Measuring landuse/landcover change • Consquences for the environment • Regions at risk • Addressing landuse/landcover change

  3. Worldwide extent of human land-use and land-cover change From: Foley et al., 2005. Global Consequences of Land Use. Science, 309: 570-574.

  4. Land-use transitions that may be experienced within a given region over time. From: Foley et al., 2005. Global Consequences of Land Use. Science, 309: 570-574.

  5. What are the driversof land-use and land-cover change?

  6. Population growth & change

  7. Economic policies & changes

  8. Economic policies & changes

  9. How do we measure landuse and landcover change?

  10. Demographic analyses

  11. Spatial analysis

  12. Spatial analysis

  13. Modeling and visualization

  14. What are the environmental consequences of landuse/landcover change?

  15. Effects on atmosphere/climate • Air pollution

  16. Effects on atmosphere/climate • Urban heat island

  17. Effects on water resources • Groundwater depletion

  18. Effects on water resources • Flooding

  19. Effects on water resources • Water pollution

  20. Effects on ecosystems • Habitat fragmentation

  21. Effects on ecosystems • Degradation of soil fertility

  22. What geographic regions are at greatest risk for landuse / landcover change?

  23. Source: NASA Regions at risk

  24. Regions at risk

  25. Regions at risk

  26. How do we address the consequences of landuse / landcover change?

  27. Urban forestry programs

  28. Watershed protection programs

  29. Ecosystem valuation programs The Conservation Fund

  30. Innovative tax policies

  31. Landuse / Landcover ChangeSummary • Important component of global environmental change • Driven by multiple factors (population, economics, policy) • Measured through traditional statistical approaches and innovative mapping/modeling • Affects environmental processes (atmosphere, water, ecology)

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