منصة المعارف عن الزراعة الإيكولوجية

Resilience: enhanced resilience of people, communities and ecosystems is key to sustainable food and agricultural systems

Diversified agroecological systems are more resilient – they have a greater capacity to recover from disturbances including extreme weather events such as drought, floods or hurricanes, and to resist pest and disease attack. Following Hurricane Mitch in Central America in 1998, biodiverse farms including agroforestry, contour farming and cover cropping retained 20–40 percent more topsoil, suffered less erosion and experienced lower economic losses than neighbouring farms practicing conventional monocultures.

By maintaining a functional balance, agroecological systems are better able to resist pest and disease attack. Agroecological practices recover the biological complexity of agricultural systems and promote the necessary community of interacting organisms to self-regulate pest outbreaks. On a landscape scale, diversified agricultural landscapes have a greater potential to contribute to pest and disease control functions.

Agroecological approaches can equally enhance socio-economic resilience. Through diversification and integration, producers reduce their vulnerability should a single crop, livestock species or other commodity fail. By reducing dependence on external inputs, agroecology can reduce producers’ vulnerability to economic risk. Enhancing ecological and socio-economic resilience go hand-in-hand – after all, humans are an integral part of ecosystems.

Database

This article reviews the main initiatives underlying ecologically intensive agroecosystems, analyses basic concepts, and proposes a framework for action. The rainforest model, the dry forest model, and the American Prairie are exemplified as three main natural systems at the basis of the mimicry concept. The link between biodiversity and the...
مقال في مجلة
2012
This study examines the impacts of a set of agroecological interventions for a typical semiarid African country on the achievement of all the Sustainable Development Goals (SDGs). The policy analysis utilises the Threshold21-iSDG model, developed by the Millennium Institute (MI), which integrates the social, economic and environmental dimensions of sustainable development into one framework....
التقرير
2018
Smallholder farmers in semi-arid Africa are in an increasingly vulnerable position due to the direct and indirect effects of climate change, demographic pressure and resource degradation. Conservation agriculture (CA) is promoted as an alternative to restore soil productivity through increased water and nutrient use efficiencies in these regions. However, adoption...
مقال في مجلة
2012
Conventional crop protection with pesticides has limitations such as resistance of pests to pesticides and faunal imbalance. Agroecological crop protection is an attractive alternative based on the principles of agroecology. We present here this strategy using the case of Cucurbitaceae flies, which are the most important agricultural pests in Réunion....
مقال في مجلة
2015
One of the main problems of the páramo ecosystem (altitudinal belt of the tropical mountain between 3,000m and 4,000m) is conventional potato production. The use of agrochemicals in food production is degrading the ecosystem and polluting the water that reach more than 8 million inhabitants of the city of Bogotá,...
Colombia
الابتكار
2018