参考文献：
[1] 朱世峰. 耕地变化对白洋淀流域平原区地下水中“三氮”影响研究[D]. 西安: 长安大学, 2021.
[2] 徐贵贵. 雄安新区容城漏斗区地下水人工补给过程中氮铁锰迁移转化与模拟预测[D]. 长春: 吉林大学, 2022.
[3] Liu, M. Y., Min, L. L., Wu, L., et al. Evaluating nitrate transport and accumulation in the deep vadose zone of the intensive agricultural region, North China Plain [J]. Science of the Total Environment, 2022, 825: 153894.
[4] Wang, S. Q., Tang, C. Y., Song, X. F., et al. Using major ions and δ15N-NO3- to identify nitrate sources and fate in an alluvial aquifer of the Baiyangdian Lake watershed, North China Plain [J]. Environmental Science: Process & Impacts, 2013, 15(7): 1430-1443.
[5] Wang, Y. Q., Zhang, P. P., Sun, H., et al. Vertical patterns and controlling factors of soil nitrogen in deep profiles on the Loess Plateau of China [J]. Catena, 2022, 215: 106318.
[6] 郭星宇, 刘朋召, 王瑞等. 旱地冬小麦产量、氮肥利用率及土壤氮素平衡对降水年型与施氮量的响应[J]. 作物学报, 2022, 48(5): 1262-1272.
[7] 李雪, 刘美英, 闵雷雷等. 华北平原中部地区典型深层包气带氮素迁移转化过程[J]. 中国生态农业学报(中英文), 2025, 33(12): 2359-2370.
[8] 商放泽, 杨培岭, 李云开等. 不同施氮水平对深层包气带土壤氮素淋溶累积的影响[J]. 农业工程学报, 2012, 28(7): 103-110.
[9] Weitzman, J. N., Brooks, J. R., Compton, J. E., et al. Deep soil nitrogen storage slows nitrate leaching through the vadose zone [J]. Agriculture, Ecosystems & Environment, 2022, 332: 107949.
[10] Zhu, X. Q., Miao, P., Wang, P. Z., et al. Variations and influencing factors of nitrate accumulation in the deep soil profiles of apple orchards on the Loess Plateau [J]. Agriculture, Ecosystems & Environment, 2022, 335: 108005.
[11] 梁慧雅, 王仕琴, 魏守才. 华北山前平原典型厚包气带硝态氮分布累积规律[J]. 土壤, 2017, 49(6): 1179-1186.
[12] 牛新胜, 张翀, 巨晓棠. 华北潮土冬小麦-夏玉米轮作包气带氮素淋溶机制[J]. 中国生态农业学报(中英文), 2021, 29(1): 53-65.