No grazing - Githubissues

fineprint-global / fabio

Food and Agriculture Biomass Input-Output Tables

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Closed nk027 closed 4 years ago

nk027 commented 4 years ago

There seems to be no data on grazing. At least that'd fix #9.

nk027 commented 4 years ago

Note that in the original this comes from addCBS and is filled with Prod. But Prod has no information on grazing.

nk027 commented 4 years ago

So there is no information on grazing in the data. Grazing is filled with the remainder of demand after allocating Fodder crops.

If supply > demand the grass demand is set to the supply of available fodder crops, split according to the use across processes.

This fails most of the time since this is mostly the case where supply == 0, which mean that there is no way to split.

nk027 commented 4 years ago

Ok so:

Apparently for Bouwman's feed fodder crops are part of the residue (instead of grass) -- we now assume a part of the residue comes from fodder crops, tracked in the fodder variable.
Grass is now actually grazing and its use is directly taken from the estimated requirements (since there is now grass supply per se).
Aforementioned supply == 0 issue does not occur anymore now.