Exploring agricultural landscape change from the second half of the twentieth century onwards: combining aerial imagery with farmer perspectives.

Mohr, Franziska; Pazur, Robert; Debonne, Niels; Dossche, Rebekka; Helfenstein, Julian; Hepner, Samuel; Levers, Christian; Verburg, Peter H; Bürgi, Matthias (2024). Exploring agricultural landscape change from the second half of the twentieth century onwards: combining aerial imagery with farmer perspectives. Landscape ecology, 39(7) Springer Netherlands 10.1007/s10980-024-01914-z

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CONTEXT

Anthropogenic landscape change is an important driver shaping our environment. Historical landscape analysis contributes to the monitoring and understanding of these change processes. Such analyses are often focused on specific spatial scales and single research methods, thus covering only limited aspects of landscape change.

OBJECTIVES

Here, we aim to assess the potential of combining the analysis of historical aerial imagery and local stakeholder interviews for landscape change studies using a standardized mapping and interviewing approach.

METHODS

We compared six agricultural landscapes across Europe and mapped land-cover using historical aerial imagery (starting between 1930 and 1980, depending on data availability, until recent years) with an object-based image analysis and random forest classification. For local perspectives of landscape change, we conducted oral history interviews (OHIs) with (almost) retired farmers. Comparing recorded landscape changes from both approaches provided insight into advantages of combining these two methods.

RESULTS

Object-based analysis enabled the identification of high-resolution land-cover dynamics, with scale enlargement and cropland/grassland expansion being the most commonly recurring trends across European landscapes. Perceived landscape changes identified in the OHIs included changes in farm management, landscape structure, and infrastructure. Farmers also reported drivers and personal values associated with landscape change. Combining the two historical landscape analysis tools resulted in a qualitative and quantitative understanding of changes in land-cover, land use, and land management.

CONCLUSIONS

Comparing physical land-cover change with local farmer perspectives is key to a comprehensive understanding of landscape change. There are different ways the two methods can be combined, leading to different venues for science and policy making.

SUPPLEMENTARY INFORMATION

The online version contains supplementary material available at 10.1007/s10980-024-01914-z.

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5 Citations in Web of Science ®
6 Citations in Scopus

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