As a consequence of population increase in the coming decades, and the need to meet an expected rise in the future demand for food, agricultural production will need to increase. This will occur either by expansion of the amount of land used for agriculture, or through gains in efficiency using existing resources.
One factor which has the potential to affect future food production and the expansion of output is water availability. Globally, agriculture is the largest consumer of fresh water, using up to 70% of freshwater supplies. Water use in agriculture can be extremely variable subject to geographic region and prevailing agricultural practice. A large proportion of demand is driven by the need for irrigation of horticultural crops in more arid regions. Nevertheless, the demand for water use in agriculture is ubiquitously high and livestock production accounts for 30% of agricultural water usage. 95% of agricultural land is currently rain fed.
In the future as rainfall patterns become more unpredictable and shift towards a ‘feast and famine’ regime in terms of rainfall intensity, the potential for declining water availability and potential water scarcity is like to have a negative effect on agricultural (crop or pasture) production.
Bu hikaye Farming Monthly National dergisinin August 2020 sayısından alınmıştır.
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Bu hikaye Farming Monthly National dergisinin August 2020 sayısından alınmıştır.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber? Giriş Yap
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