The cereals demand footprint of smaller Indian cities
On this map you can see, near the centre, the town of Amalner, in the state of Maharashtra, in the district of Jalgaon. In 2001 Amalner was a Class II town, as categorised by the Census of India based on its population being under 100,000 people – its population then was 91,490.
In the 2011 Census the population of Amalner was 116,750 which means the town has crossed the 100,000 mark and for the ten years between the two censuses, its population grew at just under 2.8% every year. Although rapid, that still places Amalner comfortably under the 3.4% average annual population growth rate of the 500 towns and cities whose details we have in the 2011 Census.
How much food do the residents of Amalner need every year? Estimating the quantities is relatively less troublesome for cereals, whereas for pulses, vegetables, fruit, dairy and meat it is progressively more difficult and unreliable.
The squares on the map are scaled for the map, and that means each square is 100 hectares large at the scale of the map. They show the land area required to supply Amalner’s residents their wheat, rice and millets mix (I have taken a 40:40:20 mix as typical for Maharashtra). Crop yield data are from the Ministry of Agriculture, Department of Economics and Statistics, averaged, and adjusted for milled quantities of rice and wheat (but not millet).
How much wheat, rice and millet? The unmilled quantities I estimated are, for 2001: 5,940 tons (wheat), 7,630 tons (rice) and 2,670 tons (millets). For 2013 the quantities are: 8,000 tons (wheat), 10,290 tons (rice) and 3,600 tons (millets). The annual cereals requirement is based on the Indian Council of Medical Research (ICMR) 2010 recommended dietary allowance (cereal 400 gm/capita/day).
Now this graphic, plotted on a map that shows the urban extent of Amalner, also shows the land ‘footprint’ of cereals that a typical smaller town requires. We have now much greater interest in urban agriculture than even two years earlier, and while these networks have begun to thrive, this analysis demonstrates the dependence by urban residents on districts to supply them cereals and pulses.
In the graphic, the squares under the caption ‘additional cereals area in 2013’ show the new hectares required to be brought under cereals cultivation to meet the calorie needs and nutritional standards for Amalner’s growing population. The use of these squares on the map serves to show why land use change for urbanisation runs quickly into physical limits – provided those physical limits are recognised and planned for.
There are about 130 such urban settlements with populations of plus-minus 10,000 relative to the population of Amalner. Above this group are the cities with populations of 150,000 and above all the way to the million-plus metropolises. Below this set are the much more numerous small towns with populations of 20,000 to 100,000 and whose demand for food, and therefore on the maintenance of cultivated, is hardly known or measured.
Amalner’s 2.8% population growth rate every year also tells us there are migrants coming into the town. When those additional migrants are also cultivators and former agricultural labour, what will happen to the old and new hectares the cities need to keep cultivated? Where will the food come from?