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模拟降雨强度对石生态系统中泄漏的影响:使用HYDRUS-1D对田和果园进行比较研究
Chunjin Gong1, Yiyang Li1, Junfeng Dai2,3
1College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541000, China.
Environmental science and pollution research international
|February 21, 2026
概括
卡斯特湿地土壤易受气损失的影响. 较高的肥料含量增加了酸盐和的泄露,特别是在果园中,强调了在这些敏感的景观中需要谨慎的管理的必要性.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 水文学 水文学
背景情况:
- 卡斯特湿地容易受到农业 (N) 损失的影响.
- 在这些环境中实地垂直土壤溶液监测是有限的.
- 了解N动态对于减轻环境影响至关重要.
研究的目的:
- 在不同单次施加肥料率下,量化卡斯特湿地的垂直酸盐和动态.
- 评估大雨事件对在田和果园系统中N运输的影响.
- 为了评估HYDRUS-1D模拟的准确性,用于模拟卡斯特土壤中的N动态.
主要方法:
- 在降雨事件期间实地监测土壤溶液.
- HYDRUS-1D数值模拟用于模拟水和溶液运输.
- 在不同的N应用率下,在田和果园用地的N动态的比较.
主要成果:
- 在HYDRUS-1D模拟中,准确地复制了土壤水分和溶液动态 (R2 > 0.87).
- 暴雨导致果园中短暂的氨峰和米土壤中更深的酸盐积累.
- 增加的应用显著提高了表面酸盐水平和累积的浸流量,果园显示出更高的灵敏度.
结论:
- 土地利用和降雨强度在重要程度上影响了运输在地湿地.
- 果园比大米田对一次性应用N率的增加更为敏感.
- 建议采用分割应用和调整灌等管理策略,以减少地农业景观中漏的风险.
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