Water sources for root water uptake: Using stable isotopes of hydrogen and oxygen as a research tool in agricultural and agroforestry systems
Water sources for root water uptake: Using stable isotopes of hydrogen and oxygen as a research tool in agricultural and agroforestry systems
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DOI：
10.1016/j.agee.2019.106790
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发表时间：
2020-04
期刊：
影响因子：
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通讯作者：
D. Penna;J. Geris;L. Hopp;F. Scandellari
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文献类型：
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作者：
D. Penna;J. Geris;L. Hopp;F. Scandellari
了解农业和农林复合系统中作物吸水的水源是制定更有效和可持续的水管理战略的关键步骤，鉴于当前世界人口增长、气候条件变化以及随之而来的农业和农林复合生产面临的越来越大的压力，这一战略变得越来越重要。水分子中氢和氧的稳定同位素是强大的，而且现在是负担得起的示踪剂，可以帮助确定植物获得的水源的比例。然而，与自然环境相反，它们在农业和农林研究中的应用仍然相对有限。在这项工作中，我们综合了使用氢和氧的稳定同位素的优势和当前的知识，以支持更传统的技术，以了解农业和农林复合系统的根系吸水动态。我们还强调了将这项技术应用于管理目的的实际影响，并展望了在探索基于同位素数据的作物和植物水分利用方面的新挑战和未来研究机会。
Understanding water sources for crop water uptake in agricultural and agroforestry systems is an essential step to develop more efficient and sustainable water management strategies, which is increasingly important in the light of current world population growth, changing climatic conditions and consequent growing pressures on agricultural- and agroforestry production. Stable isotopes of hydrogen and oxygen in the water molecule are powerful and, nowadays, affordable tracers that can help to define the proportion of water sources accessed by plants. Yet, contrary to natural environments, their application is still relatively limited in agricultural and agroforestry research. In this work, we synthesize the advantages and the current knowledge deriving from the use of the stable isotopes of hydrogen and oxygen, in support of more traditional techniques, to understand root water uptake dynamics in agricultural and agroforestry systems. We also underline the practical implications related to the application of this technique for management purposes, and provide a vision for new challenges and future research opportunities in exploring crop and plant water use based on isotopic data.