GHG - Crops
The water module is only available for a range of crops in the tool:
Alfalfa, Barley, Coffee, Cotton, Dry Bean, Maize, Millet, Oats, Other grain, Other legume, Other N-fixing forage, Other Non-N-fixing forage, Peanut, Perennial grass, Potato, Rice, Rye, Sorghum, Soyabean, Spring wheat, Tomato, Vegetable, Winter wheat
It is not available for the following:
Apple, Canola, Clover, Grass-clover mix, Hops, Rapeseed, Tea, Tree Crop, Blueberry, Raspberry, Strawberry, Other, Other root crops, Other tuber crop
Therefore you can only make a combined GHG & Water assessments for which the water metric has been developed. If you want to assess another crop, start again and only select the GHG metric.
Water
The number represents gross irrigation divided by crop water requirements. This describes how much of the crop requirements are supplied by irrigation. Therefore, the lower the number the less irrigation water-dependent is your production. However, depending on precipitation this number can either be good or bad. If you don’t irrigate sufficiently and precipitation is also not enough you might have a big water yield gap.
There are other definitions that describe irrigation efficiency and are currently being explored.
Like the carbon tool, we do not run a crop growth model to simulate the effect of different management interventions on crop production. To understand the full effect of different management on water footprints and water use efficiency please make adjustments to yield as well using your experience or other models.
The Cool Farm Tool does not require any information on irrigation if no irrigation is applied. For rainfed agriculture, the tool will estimate water use, water footprints and water use efficiency based on precipitation only. Therefore, you will only see a green water footprint on the result page.
The water module is only available for a range of crops in the tool:
Alfalfa, Barley, Coffee, Cotton, Dry Bean, Maize, Millet, Oats, Other grain, Other legume, Other N-fixing forage, Other Non-N-fixing forage, Peanut, Perennial grass, Potato, Rice, Rye, Sorghum, Soyabean, Spring wheat, Tomato, Vegetable, Winter wheat
It is not available for the following:
Apple, Canola, Clover, Grass-clover mix, Hops, Rapeseed, Tea, Tree Crop, Blueberry, Raspberry, Strawberry, Other, Other root crops, Other tuber crop
Therefore you can only make a combined GHG & Water assessments for which the water metric has been developed. If you want to assess another crop, start again and only select the GHG metric.