Global Cropland Area Database (GCAD) derived from Remote Sensing in Support of Food Security in the Twenty-first Century: Current Achievements and Future Possibilities

Teluguntla, P and Thenkabail, P S and Xiong, J and Gumma, M K and Giri, C and Milesi, C and Ozdogan, M and Congalton, R and Tilton, J and Sankey, T T and Massey, R and Phalke, A and Yadav, K (2015) Global Cropland Area Database (GCAD) derived from Remote Sensing in Support of Food Security in the Twenty-first Century: Current Achievements and Future Possibilities. In: Land Resources Monitoring, Modeling, and Mapping with Remote Sensing (Remote Sensing Handbook). Taylor & Francis, Boca Raton, Florida, 01-45.

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Abstract

The precise estimation of the global agricultural cropland- extents, areas, geographic locations, crop types, cropping intensities, and their watering methods (irrigated or rainfed; type of irrigation) provides a critical scientific basis for the development of water and food security policies (Thenkabail et al., 2012, 2011, 2010). By year 2100, the global human population is expected to grow to 10.4 billion under median fertility variants or higher under constant or higher fertility variants (Table 1) with over three quarters living in developing countries, in regions that already lack the capacity to produce enough food. With current agricultural practices, the increased demand for food and nutrition would require in about 2 billion hectares of additional cropland, about twice the equivalent to the land area of the United States, and lead to significant increases in greenhouse gas productions (Tillman et al., 2011). For example, during 1960-2010 world population more than doubled from 3 billion to 7 billion. The nutritional demand of the population also grew swiftly during this period from an average of about 2000 calories per day per person in 1960 to nearly 3000 calories per day per person in 2010...

Item Type:	Book Section
Divisions:	RP-Resilient Dryland Systems
CRP:	CGIAR Research Program on Dryland Systems
Uncontrolled Keywords:	Global Cropland Area Database, Remote Sensing, Food Security, 21st Century, Food Production
Subjects:	Others > Agriculture-Farming, Production, Technology, Economics
Depositing User:	Mr Ramesh K
Date Deposited:	05 Jan 2016 04:38
Last Modified:	05 Jan 2016 04:38
URI:	http://oar.icrisat.org/id/eprint/9224
Acknowledgement:	UNSPECIFIED
Links:	Google Scholar

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