• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>other >Yield Trends Are Insufficient to Double Global Crop Production by 2050
【2h】

Yield Trends Are Insufficient to Double Global Crop Production by 2050

机译：到2050年单产趋势不足以使全球农作物产量翻番

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Several studies have shown that global crop production needs to double by 2050 to meet the projected demands from rising population, diet shifts, and increasing biofuels consumption. Boosting crop yields to meet these rising demands, rather than clearing more land for agriculture has been highlighted as a preferred solution to meet this goal. However, we first need to understand how crop yields are changing globally, and whether we are on track to double production by 2050. Using ∼2.5 million agricultural statistics, collected for ∼13,500 political units across the world, we track four key global crops—maize, rice, wheat, and soybean—that currently produce nearly two-thirds of global agricultural calories. We find that yields in these top four crops are increasing at 1.6%, 1.0%, 0.9%, and 1.3% per year, non-compounding rates, respectively, which is less than the 2.4% per year rate required to double global production by 2050. At these rates global production in these crops would increase by ∼67%, ∼42%, ∼38%, and ∼55%, respectively, which is far below what is needed to meet projected demands in 2050. We present detailed maps to identify where rates must be increased to boost crop production and meet rising demands.
机译：多项研究表明，到2050年，全球农作物的产量需要增加一倍，才能满足人口增长，饮食转变和生物燃料消费增加带来的预计需求。强调提高作物产量以满足这些不断增长的需求，而不是清除更多的农业用地，是实现这一目标的首选解决方案。但是，我们首先需要了解全球的农作物产量如何变化，以及我们是否有望在2050年之前使产量翻番。使用大约250万个农业统计数据（收集了全世界约13,500个政治单位），我们跟踪了四种全球主要农作物-玉米，大米，小麦和大豆-目前产生的热量占全球农业热量的近三分之二。我们发现，这四大作物的单年非复合增长率分别为1.6％，1.0％，0.9％和1.3％，低于使全球产量翻一番所需的每年2.4％的增长率。到2050年。按照这些速度，这些作物的全球产量将分别增加约67％，约42％，约38％和约55％，远低于满足2050年预计需求所需的水平。我们提供了详细的地图确定必须提高费率的地方以提高作物产量并满足不断增长的需求。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号