However, because farmers were highly motivated to manage the cropland after the 1980s, over half the sediments were derived from cropland in the 1980s.
Her research focuses on model and algorithm development to derive advanced cropland information through satellite data and she is leading 'Agricultural Intelligence Engine' platform at 'Harvesting'.
We derived the percent cropland for each county by dividing total land used for crop production by total land in acres for that county.
The RCLs for the year 2014 (RCL2014) were then used in the development of the ACMA algorithm to create ACMA-derived cropland layers for 2014 (ACL2014).
The ACMA algorithm was deployed on Google Earth Engine (GEE) cloud computing platform and applied on MODIS time-series data from 2003 through 2014 to obtain ACMA-derived cropland layers for these years (ACL2003 to ACL2014).
We used FAO forecasts [39,60] to derive estimates for cropland area change and crop yields until 2050 (for reference see [54]).
We therefore calculated the area of rural infrastructure as a percentage of cropland area in each region, using factors derived from prior work [48].
The location and extent of cropland and grassland within a reporting unit is derived from remote sensing data [22].
In order to avoid complications arising from working with "harvest yields" (i.e., yields per harvest event; areas with multicropping are counted each time they are harvested, fallow is omitted), we use the concept of "land-use yields" (derived by dividing the total amount of crops produced per unit of cropland area, including fallow).
The mismatch observed at grassland and cropland sites is likely due to the extreme fragmentation of these landscapes, as confirmed by geostatistical attributes derived from high resolution scenes.
In the first case, the available cropland area is just about sufficient to produce enough food, so bioenergy could in that case only be derived from residues and grazing areas, and the potential drops to 63.6 EJ y−1 (−39%).
