This dataset aims to quantify the contribution of small-scale and large-scale agriculture to food-related virtual water flows. Small-scale and large-scale agriculture were explicitly disaggregated in Environmentally-Extended Multi-Regional Input-Output analysis (EE-MRIO), which was later used to calculate virtual water flows. The EE-MRIO consists of three tables to increase the resolution of food-related sectors, considering the importance of these sectors in water consumption (FABIO, GLORIA, and the linking table). Gridded crop production and water consumption data are used, and their production allocation to trade and non-food uses was estimated based on the farming system. Different crop water footprints were used for virtual water flows, non-food uses and for domestic purposes. 



This dataset contains country-level virtual water flow divided by green or blue water, type of final use, year, from water-scarce or water-abundant regions; and gridded data describing where the virtual water flow comes from at the 30-arcmin grid cell level per crop



A detailed method description and analysis are under preparation and review. We will update it here as soon as possible. All the code and other data will be available upon request. 

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Country level data (under folder "VWFOutput"):

File name:
A_[WT]_Disagg_[FU]_[Y]_[S]GLORIA.csv
The virtual water flows estimated from FABIO, all food purposes

B_[WT]_Disagg_[Y]_[S]GLORIA.csv
The virtual water flows estimated from linking table, crop for nonfood uses


[WT]: blue water (blue) or green water (green)
[FU]: types of final use: crop as food (Crop), crop food product (Cropproduct), livestock food product(Livestock)
[Y]: year, 2008-2012
[S]: all elements (none) or from water scarce regions only (scarce_) 

Within each file, you have six columns:
GLORIA_from: where the virtual water flow comes from
item: from which crops/crop groups
Disagg:always T
farm: from large-scale or small-scale agriculture
GLORIA_to: where the virtual water flow finally goes
Value_m3: amount of virtual water flows, m3

Gridded data (VWFSpatial.csv):
Country: country name
project_name: crop name
IrrHigh: T for high-input rainfed or irrigated farming system; F for low-input or subsistence farming system
if_bws: if blue water scarce
lon_x: longitude
lat_y: latitude
subsor2haorsdg: the harvested area belonging small-scale agriculture, ha
harv_area_ha: the total harvested area, ha
production_t_larg: crop production of large-scale agriculture, m3
production_t_smh: crop production of small-scale agriculture, m3
blue_water_m3_larg: blue water consumption of large-scale agriculture, m3
blue_water_m3_smh: blue water consumption of small-scale agriculture, m3
blueVWF_m3_larg: blue virtual water flows from large-scale agriculture, m3
blueVWF_m3_smh: blue virtual water flows from small-scale agriculture, m3