|
| 引用本文: | 戴魁冠,王猛猛,李 勃,等.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. |
| DAI Kuiguan,WANG Mengmeng,LI Bo,et al.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. |
|
| |
|
|
| 本文已被：浏览 302次 下载 546次 |
![本文二维码信息]()
码上扫一扫！ |
|
|
| 加气微咸水对黄三角盐碱土壤水肥盐
运移特性影响研究 |
|
戴魁冠，王猛猛，李 勃，朱自果，孙池涛，
张 鹏，王俊辉，王浩丞，张 倩
|
|
1.山东农业大学，山东 泰安 271000；2.重庆白马航运发展有限公司，重庆 408500；
3.山东临沂水利工程总公司，山东 临沂 276000；4.山东省葡萄研究院，济南 250100
|
|
| 摘要: |
| 【目的】探究加气微咸水对黄三角盐碱土土壤入渗特性、盐分分布及氮素转化的影响规律。【方法】设置微咸水S、加气淡水FO及加气微咸水SO处理，以淡水F处理为对照，研究加气微咸水对黄三角盐碱土累积入渗量、湿润锋深度、土壤含水率、土壤含盐量及土壤氮素量的影响。【结果】与F处理相比，在100 min时，加气微咸水处理的累积入渗量增加了10.77%，湿润锋深度增加了20.38%；在660 min时，加气微咸水处理的累积入渗量增加了54.58%，湿润锋深度增加了59.77%。与淡水处理相比在，100 min时，微咸水处理的累积入渗量增加了26.67%，湿润锋深度增加了72.43%；在660 min时，累积入渗量增加了66.1%，湿润锋深度增加了72.43%。与F处理相比，加气微咸水处理60 cm土层处含盐量下降了20.8%。加气淡水处理和加气微咸水可以有效提高40 cm土层深度的铵态氮量，加气微咸水处理提升效果最好，铵态氮量随着时间的增加呈先增大后减小的变化趋势，最大值出现在第7天；加气微咸水处理对60 cm处硝态氮量提升效果明显，硝态氮量随时间的增加逐渐增加，最大值出现在第21天。【结论】加气微咸水处理可以增加土壤含水率，可以有效改良微咸水在浅层土壤停留导致的含盐量高的问题，提高土壤脱盐率。加气淡水、加气微咸水处理可以有效提高40 cm处土壤铵态氮量，加气微咸水处理可以提高60 cm土壤硝态氮量。 |
| 关键词: 加气微咸水；盐碱土；入渗特性；黄河三角洲 |
| DOI：10.13522/j.cnki.ggps.2024003 |
| 分类号: |
| 基金项目: |
|
| Influence of aerated irrigation using brackish water on transport of water, nitrogen, and salt in saline soil in the Yellow River Delta |
|
DAI Kuiguan, WANG Mengmeng, LI Bo, ZHU Ziguo, SUN Chitao,
ZHANG Peng, WANG Junhui, WANG Haocheng, ZHANG Qian
|
|
1. Shandong Agricultural University, Tai’an 271000, China; 2. Chongqing Baima Shipping Development Co., Ltd,
Chongqing 408500, China; 3. Shandong Linyi Water Conservancy Engineering Corporation, Linyi 276000, China;
4. Shandong Grape Research Institute, Ji’nan 250100, China
|
| 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. |
| Key words: aerated brackish water; saline-alkali soil; infiltration characteristic; Yellow River Delta |
|
|
|
|
