Introduction

Background

   GreenRevolution

   Gujarat, India

   SatelliteImagery

Part I-Vegetation Derivation

Methods

Results/Discussion

Conclusions

Part II-Land Cover Change

    Dams

    Irrigation

    Desertification

Conclusions

Final Thoughts

Acknowledgements

Works Cited 

List of Figures and Appendix

  List of Figures and Appendix

Figure 1: Gujarat, India and Study Regions

Figure 2: Landsat Multispectral Scanner (MSS) Bandwidth

Figure 3: Reflectance Spectra of Vegetation, Dry Grass, and Soil

Figure 4: NDVI Saturation Effects at High Levels of Vegetation Abundance

Figure 5: Spectral Endmembers Used in Spectral Mixture Analysis for both Landsat MSS Scenes

Figure 6: Scatter Plot of SMA v. NDVI Vegetation Abundance Values

Figure 7: Raw Landsat MSS Data of a Study Region

Figure 8: Scatter Plot of SMA v. NDVI: The Saturation Effect

Figure 9: Areas of Poor Correlation Between NDVI and SMA

Figure 10: Scatter Plot of NDVI v. SMA, Highlighting NDVI Vegetation Increments

Figure 11: NDVI Increments of Vegetation Abundance

Figure 12: Scatter Plot of NDVI v. SMA, Highlighting SMA Vegetation Increments

Figure 13: SMA Increments of Vegetation Abundance

Figure 14: Implications of Soil & Saturation Effects in NDVI for Vegetation Change Analysis

Figure 15: Scatter Plot of Vegetation Change Results: NDVI v. SMA

Figure 16: Aggregate Village-level Vegetation Change 1976-1980, Derived by SMA

Figure 17: Forest Classification According to NDVI Threshold of 0.35 (1972)

Figure 18: Forest Classification According to NDVI Threshold of 0.35 (1976)

Figure 19: Forest Classification According to NDVI Threshold of 0.35 (1980)

Figure 20: Raw Landsat MSS Data for Forest Study Region

Figure 21: Histograms of NDVI Values for the Forested Study Area Pictured in Figure 20

Figure 22: Reservoir at the Ukai Dam 1980, Vegetation Change 1976-1980 using SMA

Figure 23: Vegetation Change 1976-1980 through Spectral Mixture Analysis

Figure 24: High-Resolution Data from the Panchromatic Band of Landsat 7 (1999)

Figure 25: Percent Sand Fraction Change 1972-1976

Figure 26: Percent Sand Fraction Change 1976-1980

Figure 27: Annual Precipitation

Figure 28: Percent Sand Fraction Change 1972-1980

Appendix I: Radiometric Alignment Equations

Back to Index

For more information please contact Laurel_Firestone@yahoo.com