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Published on 30 April 2025

How to apply SLM in food system interventions

This page provides concrete examples of integrating SLM at different levels of the food system, as well as key international resources and tools.

K-HUB > Design a Project > Sustainable Land Management > How to apply SLM in food system interventions?

As a general reference, it is important to be aware of the work of the World Overview of Conservation Approaches and Technologies, WOCAT – which serves as one of the primary resources on SLM in different contexts and at different levels.

Understanding the primary stakeholders in the land

As discussed so far, most human food is produced on land, and this tends to be land for which there are other competing uses. Projects intervening to support food security, increase productivity, and improve livelihoods must first understand who is producing that food, and what relationship they have with the land.

Small-holder farmers

Very often, the target population in SDC food systems interventions is “small-holder farmers” or – even more broadly – “local communities”. What comprises a “small” holding depends greatly on the local context. Generally, it is a type of farm managed with family labour, that is, women, men and sometimes children – perhaps hiring in or sharing labour demands with other households during peak periods. Such small-scale production has often been considered inefficient. Thus, in many countries there have been policies encouraging farm mergers for economies of scale through mechanisation and more intensive, high input cropping regimes, often as monocultures. Such thinking is increasingly questioned with the greater focus on agroecology and mixed cropping systems. Small scale can also be highly productive, although usually this requires more intensive labour inputs.

Small-holder farmers are often assumed to own the land that they farm and to be free to make decisions over what they grow. However, this is not necessarily the case. Land tenure can be a complex issue, with differing de jure and de facto realities; clarifying the situation at the outset is crucial.

Forest-dependent communities

In some SDC focal countries, there remain populations of people whose livelihoods and food security are closely linked to forest resources. They may well be ethnic minorities or indigenous peoples who have benefitted little from development interventions and are relatively isolated. For them, forests serve as a source of food, often enhancing dietary diversity and providing food security during difficult periods of the year. As in the case of cropland, it is important to understand the tenure regime of forest lands. Although most of the world’s forests are State owned, there is much evidence to show that management by communities is the most sustainable form of forest management. Supporting the transfer of use rights to local communities can therefore support SLM and ultimately have relevance for food systems.

Livestock owners

Pastoralism remains a way of life and an important cultural heritage for certain communities in many SDC focal countries, perhaps most obviously in the Horn of Africa but also in mountainous regions where transhumance is still practiced, such as in the Tien Shan and the Himalayas. Pastoralists tend to live in very harsh environments and are often marginalised and discriminated. At the same time, growing regional and global demands for meat represent an incentive for sedentary farmers to focus on livestock rearing as a livelihood option. Often this entails converting land to improved pastures and/or stall feeding with separately grown animal feed. Farmers may also choose to focus either on rearing or on fattening animals. Apart from the meat value chain – and sometimes linked to it but sometimes not – is the milk value chain.

Seeing the landscape as a whole

Landscape approaches recognise the interconnections between people and nature in places where productive land uses – such as agriculture, livestock and mining – compete with environmental and biodiversity goalsLandscapesfuture.org

The first conceptual development an approach to address the multiple functions and multiple users of land is generally attributed to researchers at CIFOR, who in 2013 set out ten principles of a landscape approach that are now widely accepted (see Figure 4). CIFOR-ICRAF is continuing such work with its current focus on governing multifunctional landscapes. The importance of adopting a landscape approach is, however, not limited to research; it is increasingly being supported by private sector actors in addition to development agencies (for example UNEP and GIZ), multiple research institutions and international NGOs. Within Switzerland, a landscape approach to land management is also supported by the federal authority.

A landscape approach is based on the precept that specific land areas cannot be seen in isolation from others, and that land use planning is therefore necessary. Perhaps the most obvious example, as long recognised in the related approach of watershed management, is that water availability downstream is inevitably influenced by upstream uses and management regimes. If the land is well vegetated by forests or other plant cover and/or terraced or managed in a way that allows for the percolation of rain, surface water runoff will likely be limited and water levels in streams and rivers well regulated. The opposite is also true, potentially leading to flash floods during rains or very low water levels in the dry season. There are obvious links to food production, whether it be for rainfed agriculture (which requires adequate soil moisture), for irrigated crops, for livestock, or indeed for raising fish in ponds.

Today, most countries of the world have detailed national land use plans, supported with digitalised geographical information systems. What can be more challenging is the translation of such plans to the more local context, in a participatory manner. This may be a task in which donors can intervene.

Key to achieving effective stakeholder engagement in a landscape approach is finding a common interest. In the case of villagers managing a territory that they all need, the common interest may simply be the sustainable management of the resource and community solidarity. In other cases, the motivation may be different. In the SECO-supported cocoa landscape project in Madagascar, the motivation of all stakeholders is to continue to produce quality cocoa in the face of climate change. In the former SDC Nature Conservation Project (NCP) in North Macedonia, the common motivation amongst stakeholders was not nature conservation per se, but the halting of rural depopulation. The solution foreseen - generating local livelihood opportunities - included the sustainable production of food for both local consumption and sale. In the case of nomadic pastoralists in West Africa who seasonally traverse areas of arable farmland, a common interest can be the grazing of stubble left after harvest – with the livestock returning their dung to fertilise the fields.

Addressing technical aspects

This section outlines key aspects in maintaining or restoring agricultural lands, forests and pastures within a healthy ecosystem.

Agricultural land

There is widespread concern amongst scientists and practitioners over the global state of soil health. Where land has been under intensive food production, the soil is increasingly hard, lacking the structure needed for good drainage and microbial activity, and denuded of organic matter. Whilst the use of agro-chemicals – fertilisers, insecticides, fungicides and herbicides – cannot be completely halted without jeopardising food security, it can be made much more limited and targeted. The following practices are all part of food production under SLM.

  • Improving soil structure through reduced mechanisation using no-till or low-till technologies; the application of bio-charcoal; sowing nitrogen-rich cover crops (notably plants of the Leguminosae family); green mulching; and making and using compost, including vermicompost.
  • Promoting pest predators and wider biodiversity through using Integrated Pest Management (IPM), or by using organic pesticides.
  • Improving productivity and biodiversity though multiple-layer cropping/agroforestry.
  • Integrating limited numbers of livestock for manure.

Recently, the term regenerative agriculture has been coined to describe ways of returning cropland to productivity by focusing on soil health, especially its organic matter (and thus carbon) content. In Tanzania, for example, regenerative agriculture is being practiced successfully in the semi-arid central plateau as part of a landscape approach - combining community participation and spatial planning with technical aspects. Whilst regenerative agriculture is an important concept, it has also been criticised for over-stating what it can achieve. SDC prefers to promote agroecology as a more holistic approach (see “How to: Agroecology”).

Sustainable water management

Farmers are often challenged by too much, or too little, water at the wrong time – a phenomenon that, with global heating, is growing. Of particular concern is the increasing frequency of extreme events – storms bringing heavy wind and rain or heat waves bringing drought. These result in major crop losses. In areas of water shortage, important measures can be summarised by the 3Rs: retention, recharge, and reuse. Retention entails ensuring that as much rainfall as possible is captured – through small bunds, hollows, ponds or dams – for later use. Recharge entails promotion of water percolation into the soil and the water table below through ensuring good vegetative cover and preventing runoff. Reuse means ensuring that any water put to one use – for example, cleaning or washing – is channelled for further use in growing food.

For irrigation practices to be compatible with SLM, the release of water should be carefully controlled. This is in part to avoid waste, but also to avoid salinisation or – in the case of paddy – the release of methane from microbial activity. Methane release can be greatly reduced by periodic wetting and drying. Drip irrigation is also a good technical practice in areas of water shortage, although it may be unaffordable for poorer, marginalised farmers.

Promoting trees in the landscape

Tree planting is generally considered an important part of SLM. Trees within an agroforestry system bring a variety of benefits. They often provide multiple products – not only timber, but fodder, fruit, medicines, fibre and others. In terms of ecosystem services, they may serve as wind breaks, offer shade in appropriate places (such as over coffee or tea bushes), stabilise sloping land with their roots, and enhance biodiversity. Nitrogen-fixing trees or bushes can also play a significant role in improving soil fertility.

Both reforestation (restoring forests) and afforestation (establishing forests on land that was not historically tree-covered) have become popular mitigation responses to climate change. However, the extensive planting of trees in a landscape can be used to claim ownership and deny other land uses. This is a clear risk in carbon credit schemes. Who benefits from such schemes, and who loses, must be carefully scrutinised. From a climate and biodiversity perspective, it is better to conserve existing naturally regenerating forests rather than planting new (often exotic) trees that will take many years to mature into a forest.

Sustainable livestock management

Animals form a part of healthy ecosystems, including agricultural ones. However, it is important that numbers are kept within limits, ideally well below stocking capacity. Good SLM practices include careful pasture management to prevent the build-up of unpalatable species; rotational grazing; stall feeding using local fodder; and widely spaced watering holes or troughs to prevent soil trampling and compaction. The restoration of pasture, if degradation is not significant, can be achieved by removing the livestock and allowing regrowth, assisted with direct seeding as necessary. Where major degradation has occurred – resulting for example in the spread of thorny bushes and gully erosion – more significant interventions may be needed such as bush clearance and reseeding. For sustainability, however, the aim should be to restore the previous biodiversity rather than introducing only highly palatable species.

Facilitating an appropriate policy and institutional framework

From global to local level, the way in which land is managed is often a highly sensitive political issue. The sustainable management of the world’s land resources is in the interests of human survival as a species. At the same time, sovereign governments cannot be forced into adopting policies that promote sustainable management but result, at least in the short term, in reduced productivity. Such decisions must be taken at the appropriate level. The clearance of the Amazon rainforest for cattle ranching and soya production is an obvious example.

To develop a level of global consensus, FAO and other international agencies (notably IFAD and UNCDD) have developed a set of Voluntary Guidelines on the Responsible Governance of Tenure of Land, Fisheries and Forests in the Context of National Food Security (commonly referred to as the VGGT, the Voluntary Guidelines on Governance of Tenure). These guidelines were developed over a long period of consultation with government stakeholders, representatives of civil society, research institutions and the private sector, and were endorsed at a UN Special Session in 2012. They cover all forms of tenure - public, private, communal, indigenous, customary, and informal - and serve as a reference for internationally accepted standards on the responsible governance of tenure.

According to the official FAO website, the overarching goals of the guidelines are “to achieve food security for all and support the progressive realisation of the right to adequate food in the context of national food security.... The Guidelines are meant to benefit all people in all countries, although there is an emphasis on vulnerable and marginalised people”.

For the 10th anniversary of the VGGT in 2022, a revised version was published based on the experiences of implementation and emphasising their continued relevance. It places land degradation neutrality at the centre of nine suggested pathways for addressing commonly encountered land tenure challenges in the context of national planning, legislation and programme implementation. These are summarised in the text box.

Policy and legal frameworks

There is much that national governments can do to support SLM through policy and legal frameworks. However, in practice, and especially in low or low-middle income countries, the focus is often on enhanced production – either for domestic consumption or for export – rather than on sustainable management practices. This is understandable in the face of population growth and the drive for food security. It is also far easier to monitor annual changes in crop yields rather than in soil health.

For SLM to be integrated fully into policy and legal frameworks, there needs to be a systematic monitoring of how food production takes place, differentiating between conventional (that is, with the use of agro chemicals), low input, and organic production. It is also important to determine that production did not contribute to land degradation. This may become increasingly necessary, at least for export crops, when the EU law on zero deforestation comes into force.

Policy coordination

In any country, there are a range of different ministries and government bodies with overlapping responsibilities for food production and land use. It is important that these are coordinated into providing a consistent policy message in favour of SLM. For example, irrigation water is quite commonly pumped up from groundwater – an unsustainable practice in many, if not most, contexts. To boost agricultural mechanisation (and thus production), farmers may receive subsidies from one government agency for increasing food production whilst at the same time, water conservation is being promoted by a separate agency. This is perhaps an example of unintended mixed messages. There may of course also be conflicting ministerial or agency mandates, such as between mining and forest or agricultural productivity, or between meat production and reducing greenhouse emissions. Coordination and clear prioritisation is thus essential.

K-HUB > Design a Project > Sustainable Land Management > How to apply SLM in food system interventions?