作物水分亏缺诊断研究进展

Research advance in diagnosis of crop water deficit

水分胁迫是影响作物生产最为普遍的环境威胁,水分亏缺的诊断对农田灌溉和精确农业的发展具有重要意义。植物本身具有一种适应土壤水分胁迫的生理生态调节机制,以度过不良的生长环境,这为水分亏缺诊断提供了信号和依据。本文从土壤指标、气象指标和作物指标角度综述了作物水分亏缺诊断的研究进展,讨论了各种方法指标的利弊,并从应用研究角度分析了应用尺度存在的问题。

Water stress is the most popular environment menace that affects crop production, and diagnosis of water deficit is very important to the development of irrigation and precision agriculture. In plants, there is an ecological and physiological mechanism of adaptability to soil water stress, which provides the signal and basis for the diagnosis of water deficit. In this paper, the research advance in diagnosis of crop water deficit is summarized from the aspects of soil index, meteorology index and crop index, the advantages and disadvantages of different methods are discussed, and the problems faced in the study application are also analyzed.