Study highlights benefits of sustainable land use in future climates

A study conducted in Bad Lauchstädt, Germany, has shed light on the potential of sustainable management to mitigate impacts and promote resilience in agricultural systems. The researchers analyzed the combined effects of global warming and soil management practices.

The study evaluated the functioning of soil food webs — composed of organisms such as nematodes, micro and macroarthropods — under simulated climate conditions for the period from 2070 to 2100.

The experiments were carried out at the Global Change Experimental Facility (GCEF), which simulates future scenarios of temperature increases (1–2°C) and changes in precipitation patterns, comparing the impact on intensively and extensively managed agricultural lands.

Less intensity, more sustainability

The results showed that low-intensity agricultural practices favor the natural control of herbivores and microorganisms, even under future climate conditions.

Some of the main findings:

• Increased microbial control: sustainable practices have led to increased regulation of soil microbial communities, promoting greater microbial turnover.

• Better herbivore control: low-intensity management systems in pastures and agricultural crops have demonstrated more effective control of subterranean herbivores.

• Energy flow resilience: Despite adverse climatic conditions, the flow of energy in the soil food web remained stable in sustainable systems.

The study highlights that sustainable agricultural management practices are essential to increase the resilience of agricultural ecosystems to climate change. Crop rotation with legumes, for example, promotes soil health by enriching organic content and diversifying microbiota.

The scientists noted that time is also a crucial factor: the benefits of sustainable practices become more evident in the long term. The study found significant changes just six years after the experiments began, reinforcing the need for long-term agricultural policies.

More information can be found at doi.org/10.1111/gcb.17554