Sustainable Food Production and Local Schemes

Supplying food now without undermining the future

A sustainable food supply meets people's needs today while protecting the land, water and energy resources needed by future generations. It also needs to support livelihoods and be manageable by the communities who depend on it. Producing more food is useful, but production cannot remain secure if it exhausts soil, depletes water supplies or becomes too expensive to maintain.

Sustainability therefore involves both how food is produced and what happens after harvest. Protecting farmland, choosing food carefully and reducing losses can all help people obtain enough food without continually increasing pressure on resources.

Organic farming: protecting soil and water

Organic farming avoids artificial fertilisers and restricts synthetic pesticides. Instead, farmers use approaches such as composting, crop rotation and physical weed control. Compost returns organic matter to the soil, while rotating crops helps maintain fertility rather than repeatedly growing the same crop in one field.

Reducing synthetic chemical use can lower the risk of chemicals being washed into rivers by surface runoff. Maintaining healthy soil also protects the farm's ability to produce food in the future.

However, organic farming can be labour-intensive: weeds may need to be removed by hand. Yields—the amount harvested from a given area—can be lower than under intensive farming, and food prices are often higher. Organic farming therefore has environmental potential, but affordability and the quantity of food produced also matter when judging its contribution to food security.

Permaculture: making the whole system work together

Permaculture designs farming and living systems around natural processes. It goes beyond avoiding particular chemicals: the aim is to connect activities so that resources are reused and waste is reduced.

For example, rainwater can be collected for watering crops, while suitable food and garden waste can be composted and returned to the soil. Crop rotation helps protect fertility, and woodland management can provide useful resources while maintaining habitats. These methods link water conservation, soil protection and food production rather than treating them as separate tasks.

Its potential lies in protecting the resources on which production depends. It is an approach to managing a system, however, rather than a guarantee of a particular yield.

Urban farming: producing food close to consumers

Urban farming includes turning unused or derelict urban land into vegetable gardens and creating community growing spaces. It brings food production into the places where many consumers live.

A community vegetable garden can provide fresh produce, improve diets and strengthen relationships between residents. Planted areas can also provide habitats for bees and butterflies. When produce is eaten nearby, the distance it needs to travel is reduced.

The Growing Together initiative supports community growing groups by helping them gain access to land, skills and income. This shows that growing food requires more than a plot: people also need knowledge and a way to keep the project running financially. Urban farming can supplement food supplies and strengthen communities, but access to land, skills and continuing support affects its potential.

Sustainable fish and meat supplies

Sustainable fishing protects fish populations so that fishing can continue in the future. Catch quotas limit how much can be taken, while allowing small fish to remain in or return to the water helps them grow and reproduce. Pole-and-line fishing can be used instead of less selective net fishing.

The connection to food security is long-term: taking too many fish may increase today's catch but reduce future supplies. Successful management depends on respecting limits rather than maximising every catch.

For meat, lower-intensity livestock systems can use pasture and place greater emphasis on animal welfare. Grazing can contribute to soil quality, but environmental impacts vary between systems. Grass-fed cattle, for example, may take longer to reach slaughter weight. Sustainable sourcing therefore involves judging how animals are raised and resources are managed; animal welfare and greenhouse gas emissions are related considerations, but they are not the same measure.

Seasonal food and fewer losses

Seasonal food consumption means eating produce when it is naturally available in the growing season. Choosing locally grown seasonal food can reduce food miles and the need for air freight or refrigerated long-distance transport. Buying from local farms and markets can also support local jobs and incomes.

Seasonality and locality work together: food grown nearby is not necessarily seasonal if its production requires changing the usual growing conditions. Reducing transport emissions is valuable, but transport is only one part of food's environmental impact.

Reducing waste and losses increases the amount of existing production that is actually eaten. Better roads and transport help harvested food reach markets before it spoils. Cold storage slows deterioration, while processing can extend shelf life. Households and shops can use food in expiry-date order rather than allowing it to become unusable.

Oddbox, for example, sells fruit and vegetables rejected for their appearance. This prevents edible produce being discarded simply because it does not look uniform. Reducing losses improves usable food supply without requiring the equivalent increase in farmland or irrigation.

A local example: the Makueni Food and Water Security Programme

Makueni County is in eastern Kenya, around 200 km south-east of Nairobi. It is semi-arid, with low, unreliable rainfall of about 500 mm a year. Long dry periods make small-scale farming difficult: crops such as maize and beans can fail when water is unavailable. Livestock also need water, so drought threatens both food and farming incomes.

The Makueni Food and Water Security Programme began in 2014. Just a Drop and the African Sand Dam Foundation worked with Musunguu and Muuo Wa Methovini, two villages with a combined population of around 800 people. The programme also supported Kanyenyoni Primary School, with around 463 pupils.

Its approach combined sand dams, school rainwater harvesting, farmer training and tree planting. These methods addressed the causes of unreliable food production rather than simply distributing emergency food.

How sand dams support food production

A sand dam is a small concrete wall built across a seasonal river channel. During rainy periods, flowing water carries sand that accumulates behind the wall. Water is stored in the spaces between the sand grains, rather than only in an exposed surface reservoir.

The sand reduces evaporation, helping water remain available during dry periods. People obtain the stored water through shallow wells or pumps and use it for crops and livestock. More reliable irrigation reduces the risk of crop failure, while water for animals helps maintain supplies of milk, meat and farming income.

Sand dams are appropriate technology because they use relatively simple materials and local people can participate in construction and maintenance. Their suitability depends on having the right seasonal river channel and geology.

Why the programme combines water, skills and environmental protection

At Kanyenyoni Primary School, roof runoff is collected in a rainwater storage tank. This improves access to water and reduces time spent collecting it from distant sources, leaving children more time for learning.

Farmer training helps people choose crops suited to dry conditions, use limited water efficiently and protect soil fertility. Providing water alone is not enough if it is poorly managed or crops are unsuitable for local conditions.

Tree planting protects the productive environment. Roots bind the soil and reduce erosion; shade reduces evaporation from the soil; and leaf litter adds organic matter. Some trees also provide fruit or animal fodder. Together, these measures help sustain farming beyond a single harvest.

How effective is the local scheme?

The programme's strength is that it tackles unreliable water supply while developing local skills and protecting soil. Community involvement makes continued maintenance more achievable, and the small-scale technology avoids dependence on complex, expensive equipment. More reliable local production can reduce reliance on outside support during dry periods.

However, sand dams cannot be built successfully everywhere. Prolonged drought can still put pressure on stored water, and maintenance and agreement over water sharing remain important. The programme benefits particular communities, not all of Kenya.

Overall, it offers a strong local contribution to sustainable food supplies where physical conditions are suitable and communities can maintain the scheme. More widely, sustainable food security is most likely to improve through a combination of resource protection, appropriate production methods and reduced waste rather than one universal solution.

Sustainable food supplies

Meet present food needs while protecting future resources and livelihoods. Judge environmental protection, community benefits and economic viability together.

Six approaches

• Organic farming: protects soil and reduces chemical runoff; can require more labour, produce lower yields and raise prices.
• Permaculture: links composting, crop rotation, rainwater harvesting and other resource-conserving methods.
• : community gardens and unused urban land provide fresh food, habitats and social benefits; need land, skills and continuing support.