Table of Contents
Remote Sens., Volume 9, Issue 10 (October 2017)
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Cover Story (view full-size image) Africa has potential to provide solution to the global food-security challenges of the twenty-first [...] Read more. Africa has potential to provide solution to the global food-security challenges of the twenty-first century, given that it is the only continent where land and water are still plentiful for cropland expansion. Further, with the population expected to reach 4 billion by the end of this century—from the current 1.2 billion—there is urgent need for accurate, high-resolution cropland maps of Africa. This paper integrates novel approaches, involving pixel-based machine learning algorithms with object-based segmentation on the Google Earth Engine cloud, to derive the cropland extent product at 30 m resolution of Africa (2015) using about 36,924 Sentinel-2 and Landsat 8 images. This 30-m Global Food Security-Support Analysis Data, cropland extent product of Africa is available for download (https://doi.org/10.5067/MEaSUREs/GFSAD/GFSAD30AFCE.001) and live view (https://croplands.org/app/map). View the paper