Citation

Agroecology and the Circular Economy in Agriculture: Evidence from Climate-Smart Villages in Yen Bai Province

By Dr. Bui Le Vinh and Nguyen Hung Anh
Climate-Resilient AgriFood Systems (CRAFS) Research Group
Vietnam National University of Agriculture

Vietnam’s transition toward sustainable agriculture requires approaches that can simultaneously improve productivity, strengthen climate resilience, restore natural resources, reduce waste, and enhance rural livelihoods. This thematic report examines how agroecology and the circular economy can be integrated within agricultural development, using evidence from Climate-Smart Village initiatives implemented in Yen Bai Province.

The report combines a review of international concepts with practical evidence generated through research and development activities conducted in Yen Bai between 2015 and 2021. These activities involved the Vietnam National University of Agriculture, the International Center for Tropical Agriculture, the University of Galway, provincial agencies, local authorities, and rural communities. The report focuses particularly on the Climate-Smart Village model in Ma Village, Vinh Kien Commune, Yen Binh District.

Linking agroecology, climate-smart agriculture, and the circular economy

The report explains that agroecology, climate-smart agriculture, and circular economy principles are closely related and can reinforce one another.

Agroecology seeks to improve agricultural productivity while protecting and restoring soil, water, biodiversity, and other ecosystem functions. Climate-smart agriculture aims to increase productivity and income, strengthen adaptation to climate risks, and reduce or avoid greenhouse gas emissions. The circular economy seeks to reduce resource extraction, reuse materials, recycle by-products, and recover value from waste.

When these approaches are combined, farming systems can be designed so that materials and resources circulate between crops, livestock, forestry, household activities, and local enterprises. Crop residues may be converted into compost, livestock feed, or fuel. Livestock manure may become organic fertilizer or a substrate for vermiculture. Forestry and processing by-products may be reused for animal housing, biological bedding, energy, or soil improvement. These linkages reduce waste, lower dependence on external inputs, and improve the overall efficiency of rural production systems.

The six-step Climate-Smart Village framework

A central contribution of the report is the six-step framework used to establish and develop Climate-Smart Villages:

1. Baseline assessment of climate risks, farming systems, natural resources, infrastructure, markets, indigenous knowledge, and community needs.
2. Community mobilization and awareness raising to strengthen understanding of climate risks and local responsibility for adaptation.
3. Participatory design and planning involving farmers, researchers, local authorities, extension services, and private-sector actors.
4. Implementation of locally selected climate-smart agricultural practices through farmer groups and community-based activities.
5. Scaling, both horizontally through farmer-to-farmer and community-to-community learning, and vertically through policy integration.
6. Monitoring and evaluation throughout implementation to support learning, adjustment, and replication.

This framework shows that Climate-Smart Villages are not simply collections of technologies. They are community-based development processes that connect technical practices with institutions, local knowledge, planning, participation, and policy support.

Practical innovations implemented in Yen Bai

The Climate-Smart Village initiatives introduced and tested a range of locally adapted practices, including:

• Legume intercropping with cassava on sloping land;
• Contour grass barriers to reduce erosion and provide livestock feed;
• Straw composting;
• Manure treatment and vermicomposting;
• Biological bedding in poultry production;
• Improved rice cultivation, including Alternate Wetting and Drying;
• Integrated home gardens combining crops, livestock, fish, and nutrient recycling;
• Semi-confined livestock production;
• Reuse of sawdust, rice husks, cassava residues, and wood-processing by-products;
• Collection and safer disposal of pesticide containers.

These practices were implemented as interconnected components rather than stand-alone technologies. Their value came from the way they linked production activities and allowed one component’s by-products to become another component’s inputs.

Environmental and climate benefits

The report finds that the Climate-Smart Village approach contributed to improved soil protection, nutrient cycling, water management, and pollution reduction.

Conservation agriculture practices on sloping cassava land helped reduce erosion, improve soil cover and moisture, restore soil fertility, and lower vulnerability to drought and pest damage. Straw composting reduced open burning and returned organic matter to the soil. Vermicomposting converted livestock manure into feed and organic fertilizer. Alternate Wetting and Drying in rice cultivation improved water-use efficiency and reduced methane emissions.

The reuse of agricultural and forestry by-products also reduced uncontrolled burning and supported the production of compost, animal feed, household energy, and soil amendments. The report therefore emphasizes that circularity in agriculture is not limited to waste treatment. It also includes conserving soil and water, reducing chemical-input dependence, improving ecosystem functions, and recovering value from locally available resources.

Economic and livelihood outcomes

Evidence from Yen Bai indicates that integrated climate-smart practices can generate important economic benefits for rural households.

Participating households reported improvements in agricultural productivity, product quality, input-cost reduction, labour efficiency, risk management, and market access. Conservation farming systems that combined cassava with legumes and contour grass barriers contributed to higher mixed household income while also improving soil conditions.

Integrated home gardens diversified household food and income sources and reduced dependence on a single crop or livestock activity. Local cassava-processing and veneer enterprises also played an important role by rewarding better-quality products and creating opportunities to reuse processing by-products.

The report shows that agroecological and circular practices become more attractive when production, resource recovery, household income, and market incentives are considered together.

Knowledge sharing, participation, and gender

The Climate-Smart Village model also strengthened local knowledge and community participation.

Farmers improved their understanding of crop and livestock selection, soil and land management, fertilizer use, irrigation, pest management, climate risks, and production planning. Farmer groups, extension activities, community libraries, demonstration models, exchange visits, local broadcasting systems, and weather information boards supported knowledge sharing within and beyond the villages.

Women played an important role in applying climate-smart practices, joining farmer groups, participating in training and exchange visits, and contributing more actively to household and community decision-making. The report highlights improvements in women’s confidence, leadership, technical knowledge, and participation in local planning.

These findings show that gender inclusion, intergenerational learning, and community participation are central elements of climate resilience rather than secondary outcomes.

Circular economy principles in practice

The Yen Bai experience is assessed against four main circular economy principles:

• Reduce: Reduce chemical fertilizer, pesticide, water, fuel, and other external-input use.
• Reuse: Reuse cassava stems, crop residues, sawdust, rice husks, and other locally available materials.
• Recycle: Convert manure, straw, and organic waste into compost, animal feed, vermiculture products, or soil amendments.
• Recover: Generate energy and recover nutrients from agricultural and processing residues.

The report concludes that the Climate-Smart Village model demonstrates the characteristics of a circular economy at community level because it connects production activities, material flows, livelihoods, environmental management, and local governance.

Contributions to sustainable development

The report assesses the Climate-Smart Village model against four broader dimensions of sustainable development:

• Environmental quality, through lower emissions, better soil and water management, and reduced pollution;
• Economic development, through higher productivity, diversified income, and improved market value;
• Social equity, through stronger participation of women, farmers, and local communities;
• Benefits for future generations, through soil restoration, knowledge transfer, and the involvement of younger community members.

This broader assessment shows that circular agriculture should not be judged only by the amount of waste recycled. It should also be evaluated by its contribution to environmental quality, economic well-being, social inclusion, and long-term resource conservation.

Policy implications

The report recommends integrating agroecology, circular economy principles, and Climate-Smart Village approaches into Vietnam’s agricultural restructuring and New Rural Development programs.

The proposed governance approach combines bottom-up and top-down processes. Villages, communes, districts, and provinces should identify local climate risks, available resources, investment needs, and priority interventions. National programs should provide technical guidance, implementation criteria, financing mechanisms, monitoring frameworks, and institutional coordination.

Priority actions include:

• Integrating climate resilience into advanced and model New Rural Development criteria;
• Strengthening coordination across crops, livestock, forestry, fisheries, water, energy, and rural industry;
• Supporting community-level monitoring and evidence-based policy feedback;
• Expanding collaboration among government agencies, research institutions, extension services, farmers, and private enterprises;
• Scaling successful local practices through coordinated planning at village, commune, district, provincial, and national levels.

Looking forward

The experience from Yen Bai shows that agroecology and the circular economy are complementary approaches. When implemented through participatory Climate-Smart Villages, they can improve soil and water management, reduce waste and emissions, diversify livelihoods, strengthen local knowledge, enhance women’s participation, and connect local innovation with public policy.

The report provides a practical foundation for advancing more climate-resilient, resource-efficient, and socially inclusive agricultural systems in Vietnam.