Publications by authors named "I Leyer"

Promoting soil functioning by maintaining soil microbial diversity and activity is central for sustainable agriculture. In viticulture, soil management often includes tillage, which poses a multifaceted disturbance to the soil environment and has direct and indirect effects on soil microbial diversity and soil functioning. However, the challenge of disentangling the effects of different soil management practices on soil microbial diversity and functioning has rarely been addressed.

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Article Synopsis
  • Soil tillage and herbicide use in agriculture can disrupt soil microbial communities, but the effects of this disruption at large geographical scales are not well-studied.
  • Research in vineyards across five European countries showed that while microbial diversity sometimes changed with soil disturbance, the overall shift in community composition was more influenced by location than the type of disturbance.
  • Although soil disturbance consistently reduced microbial respiration, its impact on the decomposition of organic matter varied widely between countries, highlighting the challenges of making broad conclusions about microbial responses across different regions.
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The abandonment of traditional agricultural practices and subsequent succession are major threats to many open-adapted species and species-rich ecosystems. Viticulture on steep slopes has recently suffered from strong declines due to insufficient profitability, thus increasing the area of fallow land considerably. Changing cultivation systems from vertically oriented to modern vineyard terraces offers an opportunity to maintain management economically viable and thus reduces further abandonment.

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Maintaining traditional agricultural management to preserve agrobiodiversity remains one of the major challenges for biodiversity conservation in Europe. In Germany, viticulture on steep slopes has shaped cultural landscapes of high conservational value but has declined strongly in recent decades due to insufficient profitability. One promising approach to keep management economically viable is modern vineyard terracing.

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