reports yields
Arguments
- gdx
GDX file
- detail
if detail=FALSE, the subcategories of groups are not reported (e.g. "soybean" within "oilcrops")
- physical
if true (default) physical area (croparea) used for yield calculation; if false harvested area used for yield calculation
- level
aggregation level of returned data ("regglo" by default)
Details
Realized yields, weighted by the endogenous cropping pattern. The
Productivity|Yields|Input data|* variables hold the 1995 cropping pattern fixed instead,
so the ratio between the two families is not a clean yield gap.
Yield by physical area variables
Reported when physical = TRUE (the default). 22 variables at detail = FALSE, 76 at
detail = TRUE. The stem itself is not reported, and no name carries a + summation
marker - unlike reportYieldsCropRaw and reportYieldsCropCalib, which do emit them.
| Name | Unit | Meta |
| Productivity|Yields|Yield by physical area|Crops | t DM/ha | Yield of all crops |
| Productivity|Yields|Yield by physical area|Crops|Cereals | t DM/ha | Cereals (maize, rice, temperate cereals, tropical cereals) |
| Productivity|Yields|Yield by physical area|Crops|Oil crops | t DM/ha | Oil crops (cotton seed, groundnuts, oilpalms, other oil crops, soybean, sunflower) |
| Productivity|Yields|Yield by physical area|Crops|Sugar crops | t DM/ha | Sugar crops (sugar beet, sugar cane) |
| Productivity|Yields|Yield by physical area|Crops|Other crops | t DM/ha | Other crops (fruits, vegetables, nuts, potatoes, pulses, tropical roots) |
| Productivity|Yields|Yield by physical area|Bioenergy crops | t DM/ha | Second-generation bioenergy crops |
| Productivity|Yields|Yield by physical area|Forage | t DM/ha | Forage crops |
| Productivity|Yields|Yield by physical area|Pasture | t DM/ha | Pasture biomass; no water split |
Every entry except Pasture is also reported split by water supply, as a lowercase leaf
(e.g. \|Crops\|irrigated) rather than a top-level branch. With detail = TRUE each group
additionally gains its individual crops on the same pattern.
Yield by harvested area variables
Reported when physical = FALSE. Same tree and counts, under the stem
Productivity\|Yields\|Yield by harvested area. Harvested area is physical area scaled by
the regional multicropping index f18_multicropping, so these yields differ from those
above by cropping intensity.