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Biomass use production feed efficiencies and greenhouse gas emissions from global livestock systems

机译:全球牲畜系统的生物量利用生产饲料效率和温室气体排放

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摘要

We present a unique, biologically consistent, spatially disaggregated global livestock dataset containing information on biomass use, production, feed efficiency, excretion, and greenhouse gas emissions for 28 regions, 8 livestock production systems, 4 animal species (cattle, small ruminants, pigs, and poultry), and 3 livestock products (milk, meat, and eggs). The dataset contains over 50 new global maps containing high-resolution information for understanding the multiple roles (biophysical, economic, social) that livestock can play in different parts of the world. The dataset highlights: (i) feed efficiency as a key driver of productivity, resource use, and greenhouse gas emission intensities, with vast differences between production systems and animal products; (ii) the importance of grasslands as a global resource, supplying almost 50% of biomass for animals while continuing to be at the epicentre of land conversion processes; and (iii) the importance of mixed crop–livestock systems, producing the greater part of animal production (over 60%) in both the developed and the developing world. These data provide critical information for developing targeted, sustainable solutions for the livestock sector and its widely ranging contribution to the global food system.
机译:我们提供了一个独特的,生物学上一致的,按空间分类的全球牲畜数据集,其中包含有关28个地区,8个牲畜生产系统,4种动物(牛,小反刍动物,猪,和家禽)和3种牲畜产品(牛奶,肉和蛋)。该数据集包含50多个新的全球地图,其中包含高分辨率信息,这些信息用于了解牲畜在世界不同地区可以扮演的多种角色(生物物理,经济,社会)。数据集突出显示:(i)饲料效率是生产力,资源利用和温室气体排放强度的关键驱动力,生产系统和动物产品之间存在巨大差异; (ii)草原作为全球资源的重要性,在继续将其置于土地转化过程的中心的同时,为动物​​提供近50%的生物质; (iii)作物-畜牧混合系统的重要性,在发达国家和发展中国家中,畜牧生产占绝大部分(超过60%)。这些数据为开发针对畜牧业的目标性,可持续解决方案及其对全球粮食系统的广泛贡献提供了重要信息。

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