Pasar al contenido principal

page search

Biblioteca Farming the planet: 1. Geographic distribution of global agricultural lands in the year 2000

Farming the planet: 1. Geographic distribution of global agricultural lands in the year 2000

Farming the planet: 1. Geographic distribution of global agricultural lands in the year 2000
Farming the planet: 1. Geographic distribution of global agricultural lands in the year 2000 cover image

Resource information

Date of publication
Julio 2008
Resource Language
ISBN / Resource ID
10.1029/2007GB002952
Pages
19
License of the resource

Agricultural activities have dramatically altered our planet's land surface. To understand the extent and spatial distribution of these changes, we have developed a new global data set of croplands and pastures circa 2000 by combining agricultural inventory data and satellite-derived land cover data. The agricultural inventory data, with much greater spatial detail than previously available, is used to train a land cover classification data set obtained by merging two different satellite-derived products (Boston University's MODIS-derived land cover product and the GLC2000 data set). Our data are presented at 5 min (∼10 km) spatial resolution in longitude by longitude, have greater accuracy than previously available, and for the first time include statistical confidence intervals on the estimates. According to the data, there were 15.0 (90% confidence range of 12.2–17.1) million km2 of cropland (12% of the Earth's ice-free land surface) and 28.0 (90% confidence range of 23.6–30.0) million km2 of pasture (22%) in the year 2000.

Share on RLBI navigator
NO

Authors and Publishers

Author(s), editor(s), contributor(s)

Navin Ramankutty
Amato T. Evan
Chad Monfreda
Jonathan A. Foley

Geographical focus