引用本文: | 刘梦娟,王雪梅,季宏兵.再生水农业灌溉对重金属累积的研究进展[J].灌溉排水学报,2021,(Z2):-. |
| LIU Mengjuan,WANG Xuemei,JI Hongbing.再生水农业灌溉对重金属累积的研究进展[J].灌溉排水学报,2021,(Z2):-. |
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摘要: |
中国水资源供需矛盾突出,农业灌溉用水尤为紧张,合理利用再生水进行农田灌溉是缓解农业水资源短缺的重要途径之一,农业再生水灌溉对水体-土壤-植物体系的影响备受关注。农业再生水灌溉有利于提高土壤肥力,但因处理工艺等的限制,再生水中可能会残留一定量的重金属、有机污染物等,其中重金属不易降解,可能会对灌溉区域土壤、农作物、地下水及人类健康造成一定影响。针对农业再生水灌溉重金属的潜在安全隐患和健康风险,本文系统总结了国内外再生水农业灌溉应用现状,分析和讨论了再生水灌溉时长、水质和不同灌溉模式等对水体-土壤-植物体系中重金属累积和迁移风险的影响,以期为我国农业再生水灌溉提供更加科学的理论指导和安全有效的保障。 |
关键词: 再生水灌溉;重金属;农作物;土壤;地下水 |
DOI: |
分类号:S275;S273.5 |
基金项目:中央高校基础科研项目(FRF-TP-19-020A1) |
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Research progress of heavy metal accumulation in reclaimed water agricultural irrigation |
LIU Mengjuan, WANG Xuemei, JI Hongbing
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School of Energy and Environmental Engineering,University of Science and Technology Beijing
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Abstract: |
The contradiction between supply and demand of water resources in China is outstanding, especially the shortage of water for agricultural irrigation. Rational use of reclaimed water for farmland irrigation is one of the important ways to alleviate the shortage of agricultural water resources, and the influence of reclaimed water irrigation on water-soil-plant systems has aroused widespread concern. Irrigation with reclaimed water in agriculture is conducive to improving soil fertility. However, due to the limitation of treatment technology, a certain amount of heavy metals and organic pollutants may remain in reclaimed water, among which heavy metals are difficult to degrade, which may have a certain impact on soil, crops, groundwater and human health in irrigation areas. In view of the potential safety hazards and health risks of heavy metals in agricultural reclaimed water irrigation, the application status of agricultural reclaimed water irrigation at home and abroad was systematically summarized, and the effects of reclaimed water irrigation duration, water quality and different irrigation methods on the accumulation and migration risks of heavy metals in water-soil-plant system were analyzed and discussed, so as to provide more scientific theoretical guidance and safe and effective guarantee for agricultural reclaimed water irrigation in China. |
Key words: reclaimed water irrigation; Heavy metals; Crops; Soil; Groundwater |