Summary
This paper by Lehmann and Rillig, published in Nature Climate Change (2015), presents a conceptual and evidential review of how soil degradation — encompassing loss of organic matter, compaction, erosion, and disruption of soil biota — compromises the biological processes underpinning nutrient cycling. The authors argue that degraded soils exhibit reduced capacity to supply plants with essential nutrients, with implications for both agricultural yields and food nutritional quality. The work draws attention to the often-overlooked biological dimension of soil fertility decline in the context of global food security and climate change.
UK applicability
Although the paper takes a global perspective, its findings are broadly applicable to UK agricultural contexts where intensive arable management has contributed to measurable soil organic matter loss and declining soil biological diversity; the review's conclusions are relevant to UK policy discussions around soil health, sustainable intensification, and the Environmental Land Management scheme.
Key measures
Nutrient cycling rates; plant nutrient uptake; soil biological activity indicators; soil organic matter content
Outcomes reported
The paper likely examines how soil degradation processes impair microbial-mediated nutrient cycling, leading to reduced availability of macro- and micronutrients for plant uptake. It probably discusses implications for crop nutritional quality and long-term agricultural productivity.
Topic tags
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