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水资源的严重短缺推动了污水再生利用,农业灌溉是再生水利用的主要形式。就北京市水科学技术研究院近年来围绕再生水灌溉对植物影响的风险所开展的系统性研究及所取得的关键技术成果进行阐述。研究提出了再生水灌溉、清水灌溉等不同水质灌溉处理对粮经作物、蔬菜类及绿化植物等植物根冠发育、品质、产量及污染物富集情况等的影响规律,对再生水灌溉的适应性进行了综合评价,提出了再生水直接灌溉的作物分类,为再生水安全、科学灌溉利用提供有力的技术支撑。
The serious shortage of water resources has promoted the recycling of sewage water. Agricultural irrigation is the main form of reclaimed water utilization. In this paper, the systematic research and the key technical achievements made by Beijing Water Science and Technology Research Institute in recent years on the risk of plant irrigation affected by reclaimed water irrigation are described. The effects of reclaimed water irrigation and fresh water irrigation on the development of root canopy, quality, yield and pollutant enrichment of crops such as crops, vegetables and greenery were also studied. The adaptability of reclaimed water irrigation In order to provide a scientific basis for the safety of reclaimed water and the scientific irrigation and utilization, a comprehensive assessment was proposed. The classification of crops for direct irrigation of reclaimed water was proposed.