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chapter 6: global climate change, food supply and livestock production systems: a bioeconomic analysis
figure 5
Livestock numbers distributed by livestock production systems for 2000, 2030
and 2050 in million (mio) TLUs. (RUMI – ruminants, BOVI – bovines, SHGT – small ruminants, BOVDh – bovines dairy herd, BOVOh – bovines other herd, SGTDh –
small ruminants dairy herd, SGTOh – small ruminants other herd)
figure 6
Land cover change between 2000 and 2050 in million (mio) hectares.
(CrpLnd – cropland, GrsLnd – grassland, PltFor – energy plantations, Forest – managed and unmanaged forest, NatLnd – other natural land)
been reared in mixed arid systems, followed by mixed humid systems (19 percent) and other systems (18 percent). Only 20 percent of all ruminants were in the grazing systems (Figure 5). The number of ruminants is projected to increase by 43 percent between 2000 and 2050. This is approximately half of the projected increase in milk and ruminant meat production, indicating
substantial productivity gains over this period.
The largest increases in the numbers of animals are expected in humid systems, driven by the continued boom in Latin America; 144 million TLUs in the mixed humid system and 105 million TLUs in the grazing humid system.
The additional agricultural production will also come partly from cultivated land expansion. Global
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