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N-Map:通过整合地质物理,地质,地化学和水文数据来绘制和建模高分辨率的地下水N-保留地图

Anders V Christiansen¹, Rasmus R Frederiksen², Troels N Vilhelmsen³

¹Department of Geoscience, Aarhus University, Høegh-Guldbergs gade 2, 8000, Aarhus C, Denmark.

Journal of environmental management

|June 2, 2023

概括

本研究介绍了N-Map,这是一个用于绘制农田 (N) 保持情况的框架,以优化农业N监管. 详细的现场规模地图降低了成本,并改善了水生生态系统中N负载的减少.

科学领域:

环境科学环境科学
农业科学农业科学
水文地质学水文地质学

背景情况:

保护水生生态系统需要了解水层中 (N) 浸出和脱区 (N-保留).
丹麦目前的N监管范围很小,导致由于空间N保留的变化,单个领域的监管过度或不足.
现场规模的N-保留映射可以将农民的缓解成本降低20-30%.

研究的目的:

提出一个新的绘图框架 (N-Map) 用于根据N-保留区分农田.
提高目标N监管在现场规模的有效性和成本效益.
为农民和当局提供数据驱动,高分辨率的地下水N保留地图.

主要方法:

将创新地质物理纳入水文地质和地化学绘图和建模.
使用多点统计 (MPS) 方法来创建许多同样可能的实现,以量化不确定性.
制定一个重点关注地下水系统内N-保留的框架.

主要成果:

该N-Map框架生成高分辨率,数据驱动的地下水N-保留地图.
这些地图使农民能够优化现场措施以减少N负荷,从而降低成本.
该框架量化了模型结构中的不确定性和其他影响N-保留的因素.

结论:

N-Map为更精确的N监管提供了一个工具,有利于个人农民和社会.
虽然并非所有农场都能看到即时的经济收益,但社会利益在于有针对性的N负载减轻.
该框架支持明智的农场规划和有效实施减缓战略,以保护水质.

关键词:

农场实施农场实施地质化学采样地质化学采样地理物理绘制地图有多个实现.在N-保留.不确定性量化不确定性的量化.

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