Landscape structure model based estimation of the wind erosion risk in Brandenburg, Germany

IF 3.1 3区地球科学 Q2 GEOGRAPHY, PHYSICAL

Aeolian Research Pub Date : 2023-06-01 DOI:10.1016/j.aeolia.2023.100878

Roger Funk, Lidia Völker, Detlef Deumlich

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引用次数: 1

Abstract

The paper presents the development, adaptive improvement and use of the method to estimate the wind erosion risk in Germany for Cross Compliance (CC) regulations, based on the German standard DIN19706. It is illustrated by the example of the Federal State of Brandenburg. A landscape structure model was developed which calculates the sheltering effects of landscape elements. Basic inputs are the heights of all landscape elements and the frequencies and directions of erosive winds. In combination with the soil map of erodibility the wind erosion risk is derived in a high spatial resolution according to the CC requirements. In addition to improving the input data in terms of its spatial resolution by using air-borne laser scanning data, an innovative approach is presented which derives the sheltered areas behind landscape elements from the transport capacities of wind speeds above a threshold. Thus, our analysis represents one of the most comprehensive wind erosion assessment of cropland that can be used for landscape structure assessment well beyond CC use. The derivation of effective protection zones from the frequencies of erosive winds when critical thresholds are adjusted represents an innovative approach that provides an objective and transferable assessment of wind protection of landscape features in different wind regimes.

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基于景观结构模型的德国勃兰登堡风蚀风险估算

本文介绍了基于德国标准DIN19706的德国交叉合规(CC)法规风蚀风险评估方法的发展、适应性改进和使用。联邦勃兰登堡州的例子说明了这一点。建立了计算景观要素遮挡效应的景观结构模型。基本输入是所有景观要素的高度以及侵蚀风的频率和方向。结合土壤可蚀性图，根据CC要求导出了高空间分辨率的风蚀风险。除了利用机载激光扫描数据提高输入数据的空间分辨率外，还提出了一种创新的方法，即从超过阈值的风速的运输能力中提取景观元素背后的遮蔽区域。因此，我们的分析代表了最全面的农田风蚀评估之一，可以用于景观结构评估，远远超出了CC的使用范围。当调整临界阈值时，根据侵蚀风的频率推导出有效的保护区代表了一种创新的方法，它为不同风况下景观特征的风保护提供了客观和可转移的评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aeolian Research GEOGRAPHY, PHYSICAL-

CiteScore

7.10

自引率

6.10%

发文量

审稿时长

>12 weeks

期刊介绍： The scope of Aeolian Research includes the following topics: • Fundamental Aeolian processes, including sand and dust entrainment, transport and deposition of sediment • Modeling and field studies of Aeolian processes • Instrumentation/measurement in the field and lab • Practical applications including environmental impacts and erosion control • Aeolian landforms, geomorphology and paleoenvironments • Dust-atmosphere/cloud interactions.