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<p>Socioeconomic changes, technological progress, and a&#xa0;wide range of funding and planning instruments have significantly altered land use in Central Europe since World War&#xa0;II. The aim of this study was to characterize these developments in the Bavarian Alpine foothills and to quantify their effects on soil erosion. This was achieved using a&#xa0;two-step approach: a&#xa0;GIS-based orthophoto analysis and an impact model utilizing the revised universal soil loss equation (RUSLE).</p><p>The key findings show that both field sizes (+370%) and their lengths (+35%) have increased significantly since the 1960s. In addition, uninterrupted runoff paths on cropland have lengthened by an average of about 70%, with corresponding effects on soil erosion.</p><p>The discussion highlights that the scope for implementing erosion-mitigation measures on these lands is already limited due to the climate crisis and structural changes in agriculture. Furthermore, the commonly accepted rule that a&#xa0;relatively small proportion of arable land accounts for the majority of eroded material was largely confirmed. The results highlight the combined effects of land-use changes and the climate crisis on erosion rates in agriculture and underscore the need for integrated and adaptive management. Finally, strategies for mitigation measures are therefore outlined.</p>

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Ein Jahrhundert des Wandels im nördlichen Alpenvorland: Implikationen für die Bodenerosion, den Feinsedimenteintrag in Gewässer und den Landschaftswasserbau

  • 期刊论文

  • 发表日期：

    2026年6月24日

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  • Sarah Höfler,
  • Gerald Ringler,
  • Elisabeth Lauss,
  • Christoph Hauer,
  • Clemens Gumpinger

摘要

Socioeconomic changes, technological progress, and a wide range of funding and planning instruments have significantly altered land use in Central Europe since World War II. The aim of this study was to characterize these developments in the Bavarian Alpine foothills and to quantify their effects on soil erosion. This was achieved using a two-step approach: a GIS-based orthophoto analysis and an impact model utilizing the revised universal soil loss equation (RUSLE).

The key findings show that both field sizes (+370%) and their lengths (+35%) have increased significantly since the 1960s. In addition, uninterrupted runoff paths on cropland have lengthened by an average of about 70%, with corresponding effects on soil erosion.

The discussion highlights that the scope for implementing erosion-mitigation measures on these lands is already limited due to the climate crisis and structural changes in agriculture. Furthermore, the commonly accepted rule that a relatively small proportion of arable land accounts for the majority of eroded material was largely confirmed. The results highlight the combined effects of land-use changes and the climate crisis on erosion rates in agriculture and underscore the need for integrated and adaptive management. Finally, strategies for mitigation measures are therefore outlined.