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首页> 外文期刊>Agricultural Water Management >Investing in water for food, ecosystems, and livelihoods: an overview of the Comprehensive Assessment of Water Management in Agriculture. (Special Issue: Comprehensive Assessment of Water Management in Agriculture.)
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Investing in water for food, ecosystems, and livelihoods: an overview of the Comprehensive Assessment of Water Management in Agriculture. (Special Issue: Comprehensive Assessment of Water Management in Agriculture.)

机译：为粮食，生态系统和生计投资水：《农业用水管理综合评估》概述。 （特刊：农业水管理综合评估。）

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The authors of the recently completed Comprehensive Assessment of Water Management in Agriculture (CA) concluded that there are sufficient water resources to produce food for a growing population but that trends in consumption, production and environmental patterns, if continued, will lead to water crises in many parts of the world. Only if we act to improve water use will we meet the acute fresh water challenge. Recent spikes in food prices, partially caused by the increasing demand for agricultural products in non-food uses, underline the urgent need to invest in agricultural production, of which water management is a crucial part. The world experienced similar pressure on per capita food supplies and food prices in the 1960s and 1970s, but the challenges now are different than those we experienced 50 years ago. The world's population is substantially larger, there are many more people living in poverty, and the costs of many agricultural inputs are much higher. The current situation and the long-term outlook require a fresh look at approaches that combine different elements such as the importance of access to water for the poor, providing multiple ecosystem services, rainwater management, adapting irrigation to new needs, enhancing water productivity, and promoting the use of low-quality water in agriculture. This special issue highlights the analysis behind a number of policy options identified by the CA, a five-year multi-disciplinary research program involving 700 scientists. This introductory article sets the background and context of this special issue, introduces the key recommendations from the CA and summarizes the papers in this issue.
机译：最近完成的《农业用水管理综合评估》（CA）的作者得出结论，有足够的水资源来为不断增长的人口生产粮食，但如果持续下去，消费，生产和环境模式的趋势将导致南非的水危机。世界许多地方。只有采取行动改善用水量，我们才能应对严峻的淡水挑战。近期粮食价格上涨，部分原因是非粮食用途对农产品的需求增加，突显了迫切需要投资于农业生产，其中水资源管理是至关重要的部分。 1960年代和1970年代，世界在人均粮食供应和粮食价格上承受了类似的压力，但现在的挑战与50年前的挑战不同。世界人口大量增加，生活在贫困中的人口增加，许多农业投入的成本也高得多。当前的状况和长期前景要求重新审视结合不同要素的方法，例如穷人获得水的重要性，提供多种生态系统服务，雨水管理，使灌溉适应新需求，提高水生产率以及促进在农业中使用劣质水。本期专刊着重分析了CA所确定的许多政策方案，该方案是一项涉及700名科学家的为期五年的多学科研究计划。这篇介绍性文章设置了本期专刊的背景和背景，介绍了CA的主要建议并总结了本期中的论文。

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