HR: 0800h
AN: B41A-0172    [Abstracts]
TI: Mapping Human-Dominated Landscapes: the Distribution and Yield of Major Crops of the World
AU: * Monfreda, C
EM: clmonfreda@wisc.edu
AF: Center for Sustainability and the Global Environment (SAGE), University of Wisconsin - Madison, 1710 University Ave., Madison, WI 53726 United States
AU: Ramankutty, N
EM: nramanku@wisc.edu
AF: Center for Sustainability and the Global Environment (SAGE), University of Wisconsin - Madison, 1710 University Ave., Madison, WI 53726 United States
AU: Foley, J A
EM: jfoley@wisc.edu
AF: Center for Sustainability and the Global Environment (SAGE), University of Wisconsin - Madison, 1710 University Ave., Madison, WI 53726 United States
AB: Croplands cover 18 million km2, an area the size of South America, and provide ecosystem goods and services essential to human well-being. Most global land-cover classifications group the diversity of croplands into a single or very few categories, thereby excluding critical information to answer key questions ranging from biodiversity conservation to food security to biogeochemical cycling. Information on land-use practices is even more limited. The relative lack of information about agricultural landscapes results partly from difficulties in using satellite data to identify individual crop types and land-use practices at a global scale. We address limitations common to remote-sensing classifications by distributing national, state, and county level statistics across a recently updated global dataset of cropland cover at 5 minute resolution. The resulting datasets depict the fractional harvested area and yield of twenty distinct crop types: maize, wheat, rice, sorghum, millet, barley, oats, soybeans, sunflower, rapeseed/canola, pulses, groundnuts/peanuts, oil palm, cassava, potatoes, sugar cane, sugar beets, tobacco, coffee, and cotton. These datasets represent the state of agriculture circa the year 2000 and will be made available for applications in ecological analysis, modeling, visualization, and education.
DE: 0400 BIOGEOSCIENCES
DE: 0402 Agricultural systems
DE: 0434 Data sets
DE: 1600 GLOBAL CHANGE
DE: 1632 Land cover change
SC: Biogeosciences [B]
MN: Fall Meeting 2005