灌溉排水学报2025，Vol.44Issue(4)：100-107,8.DOI:10.13522/j.cnki.ggps.2024003
加气微咸水对黄三角盐碱土壤水肥盐运移特性影响研究
Influence of aerated irrigation using brackish water on transport of water,nitrogen,and salt in saline soil in the Yellow River Delta
摘要
Abstract
[Objective]Aerating irrigation water is a technique to avoid anaerobicity when irrigating low-permeable soils.In this paper,we study the impact of aerated irrigation with brackish water on water transport,nitrogen transformation,and salt movement in salt-alkali soils in the Yellow River Delta.[Method]The experiment consisted of irrigation with aerated freshwater,brackish water,and a mixture of freshwater and brackish water.The control was irrigation with freshwater without aeration.In each treatment,we measured the cumulative infiltration amount,advancement of the wetting fronts,soil water content,soil salt content,and soil nitrogen content.[Result]Compared with CK,irrigation with brackish water increased the cumulative infiltration amount and the advancement of the wetting front by 10.77%and 20.38%,respectively,100 minutes after the irrigation,and by 54.58%and 59.77%,respectively,600 minutes after the irrigation.Compared with aerated irrigation with freshwater,brackish water irrigation increased the cumulative infiltration and the advancing of the wetting front by 26.67%and 72.43%,respectively,100 min after the irrigation,and 66.1%and 72.43%,respectively,600 mins after the irrigation.Brackish water irrigation reduced salt content at the depth of 60 cm by more than 20.8%,compared to freshwater irrigation.Compared with CK,aerated irrigation with both freshwater and brackish water significantly increased ammonium content at the depth of 40 cm,particularly with brackish water.Following irrigation,ammonium content continuously increased for seven days,reaching a peak before decreasing.Brackish water irrigation increased nitrate content at the depth of 60 cm.Overall,nitrate content increased after irrigation,peaking 21 days later.[Conclusion]Aerated irrigation using brackish water increased soil moisture content and improved soil desalination.Aerated irrigation using brackish water and freshwater both improved ammonium content at the depth of 40 cm,while brackish water irrigation enhanced nitrate content at the depth of 60 cm.关键词
加气微咸水/盐碱土/入渗特性/黄河三角洲Key words
aerated brackish water/saline-alkali soil/infiltration characteristic/Yellow River Delta分类
农业科技引用本文复制引用
戴魁冠,王猛猛,李勃,朱自果,孙池涛,张鹏,王俊辉,王浩丞,张倩..加气微咸水对黄三角盐碱土壤水肥盐运移特性影响研究[J].灌溉排水学报,2025,44(4):100-107,8.基金项目
山东省重点研发计划—乡村振兴科技创新提振行动计划项目(2023TZXD015,2022TZXD0011) （2023TZXD015,2022TZXD0011）
国家自然科学基金项目(51909151,52109059) （51909151,52109059）
