Agroecology and conventional agriculture

Agroecology and conventional agriculture: two visions of the relationship between humans, nature, and society

In recent decades, the debate over the future of agriculture has intensified, pitting two profoundly different models against each other: conventional agriculture and agroecology. These are not simply different production techniques, but two paradigms that reflect opposing visions of the relationship between humans, nature, the economy, and land.
Numerous international organizations—including the FAO, IPBES, and various scientific communities—now recognize that the climate crisis, biodiversity loss, and the erosion of rural social structures are closely linked to dominant agricultural models, necessitating a profound rethinking of food systems.

The ecological dimension: simplification versus functional complexity
Conventional agriculture developed by focusing on maximizing short-term yields through monocultures, synthetic chemical inputs, and high fossil fuel consumption. While this approach has rapidly increased the production of some agricultural commodities, it has also contributed to the extreme simplification of agroecosystems.
According to the 2019 IPBES Report on Biodiversity and Ecosystem Services, industrial agriculture is a major cause of global biodiversity loss, soil erosion, and the reduction of ecosystem services essential to agricultural production. In the medium to long term, this leads to the collapse of yields, production losses, and the desertification of entire rural areas.
Agroecology, on the other hand, assumes that biodiversity is not a limit to productivity, but rather an essential condition. Through complex rotations, polycultures, agroforestry, crop-livestock integration, and organic soil management, agroecological systems restore the ecological functions of agricultural ecosystems.
Numerous scientific meta-analyses (including those published in Nature Plants, Agriculture, Ecosystems & Environment, and Global Change Biology) show that biodiverse agricultural systems increase resource use efficiency, improve soil fertility, and reduce dependence on external inputs.

Productivity, Quality, and Resilience: Scientific Evidence
Contrary to a widespread narrative, agroecology does not imply a structural reduction in production. The FAO, in its report “The 10 Elements of Agroecology” and numerous subsequent studies, highlights how agroecological systems, in the medium term, are capable of equaling or exceeding the yields of conventional systems, especially when considering total production per hectare rather than individual crops.
Meta-analyses of hundreds of comparative studies, including that of Tamburini G. et al. (2020), have shown that increased functional biodiversity is directly correlated with higher primary productivity, greater yield stability, and reduced losses due to pests, diseases, and extreme weather events.
Added to this is superior crop quality: biologically active soils free of chemical contamination produce foods with better nutritional profiles and greater wholesomeness, with direct benefits for human health, as also recognized by several FAO and WHO documents.

Long versus Short Supply Chains: Energy, Climate, and Territories
A key, often overlooked, aspect concerns the organization of supply chains. Conventional agriculture is closely linked to long, globalized supply chains, which require large quantities of fossil fuels to transport raw materials, feed, and agricultural products over long distances. This model contributes significantly to greenhouse gas emissions in the global food system.
Agroecology, on the other hand, promotes shortening supply chains, favoring local markets, direct sales, solidarity purchasing groups, food hubs, and territorial food systems. According to the FAO, the territorialization of food systems drastically reduces energy consumption, the waste of raw materials, and the overall climate footprint of food.
Reducing transportation is not only an environmental issue, but also an economic and social one: strengthening local economies means retaining value in local areas and reducing dependence on unstable global markets.

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Inland Areas, Rural Communities, and Social Regeneration
Conventional agriculture has contributed to the depopulation of rural and inland areas, favoring the concentration of production activities in a few highly specialized areas. This process has led to the abandonment of fragile territories, resulting in a loss of environmental protection, increased hydrogeological risk, and the dissolution of local communities.
Agroecology, on the other hand, is recognized by various government and research bodies (such as FAO and IPBES) as a key tool for the revitalization of inland areas. Diversified, knowledge-intensive agricultural systems create more jobs, encourage the return of young people to agriculture, and strengthen the social fabric of rural communities.
In this sense, the recovery of natural ecosystems goes hand in hand with the recovery of social ecosystems.

Agricultural knowledge and cultivated biodiversity: a heritage to be rebuilt
One of the most critical effects of conventional agriculture has been the drastic reduction in agricultural biodiversity. According to the FAO, over 75% of crop genetic diversity was lost during the 20th century, in favor of a few uniform and standardized varieties. Agroecology works in the opposite direction: recovering local varieties, peasant seeds, native breeds, and traditional practices adapted to local contexts (fundamental principles of the Sicilian Regional Law on Agroecology (Regional Law 21 of July 29, 2021). This process is not nostalgic, but strategic: agricultural biodiversity is a fundamental resource for adapting to climate change and for future food security.
At the same time, traditional agricultural knowledge is valued, integrated with modern scientific research. FAO and IPBES emphasize how the co-production of knowledge between farmers, researchers, and local communities is one of the key elements of the agroecological transition.

An ethical and systemic vision
On an ethical and cultural level, agroecology proposes a regenerative vision: agriculture not as an extractive and exploitative activity, but as a practice of caring for the land, communities, and future generations. Humans are not external to the ecosystem, but part of it.

Conclusion: a paradigm shift supported by science
The The comparison between agroecology and conventional agriculture is no longer merely ideological. Scientific evidence, field trials, and reports from leading international organizations demonstrate how agroecological systems, based on biodiversity, territoriality, and the regeneration of natural and social ecosystems, represent one of the most robust responses to the environmental, climate, and social crises of our time.
The challenge, therefore, is not to produce more at all costs (a paradigm that has proven ineffective and impossible in the medium to long term), but to produce better, sustainably, equitably, and compatible with the planet’s limits.

Guido Bissanti