ABSTRACT

Increases in populations have created an increasing demand for food crops while increases in demand for biofuels have created an increase in demand for fuel crops. What has not increased is the amount of croplands and their productivity. These and many other factors such as decreasing water resources in a changing climate have created a crisis like

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Section I: Background and History of Global Irrigated Area Maps (GIAM)

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Section II: Global Irrigated Area Mapping (GIAM) Using Remote Sensing

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Section III: GIAM Mapping Section for Selected Global Regions

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Section V: Rain-Fed Cropland Areas of the World

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Section VII: Accuracies and Errors

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Section VIII: Way Forward in Mapping Global Irrigated and Rain-Fed Croplands