作物根区土壤水体中氮的迁移转化模拟研究进展

Advance in Simulation of Nitrogen Migration and Transformation in Soil Water of Crop Root-Zone

摘要:

氮素作为作物生长的重要营养元素，其过量施用导致的土壤?地下水污染制约着农业系统的可持续发展。先阐述了作物根区土壤水体中氮素的迁移转化过程，而后论述了其在土壤地下水中运移的数值模拟理论，重点探讨了土壤水体中氮素迁移转化模拟研究的进展及其不足；基于研究现状，对作物根区土壤水氮动态模拟研究的发展趋势进行了探讨，包括多过程交互机理的定量研究、数据信息的准确获取和先进模拟方法的集成三个方面；最后对作物根区土壤水体中氮的迁移转化模拟后续研究方向进行了展望。

Abstract:

Nitrogen， as a critical nutrient for crop growth， has raised sustainability concerns in agricultural systems due to soil-groundwater pollution caused by excessive application. This review begins with an elaboration of nitrogen transport-transformation processes in crop root zone soil-water systems， followed by a systematic analysis of numerical simulation theories governing its subsurface migration. Particular emphasis is placed on critical evaluation of advancements and persistent limitations in current modeling approaches. Building on the current research landscape， three pivotal development trajectories are explored， including quantitative characterization of multi-process interaction mechanisms， accurate acquisition of data and information， and systematic integration of advanced modeling methodologies. Finally， future research directions are proposed for nitrogen migration-transformation simulation in crop root zone soil-water systems.