Why Farming Matters
Farming (agriculture) feeds the world's 8+ billion people. It is also the major shaper of rural landscapes — hedgerows, fields, irrigation systems, and terraces are all farming landscapes. About 50% of Earth's habitable land is used for agriculture.
Types of Farming
By what is produced:
| Type | Description | Examples |
|---|---|---|
| Arable | Growing crops | Wheat, rice, maize, vegetables |
| Pastoral | Rearing animals | Cattle (beef/dairy), sheep, pigs |
| Mixed | Both crops and livestock | Common in Europe |
By scale and purpose:
| Type | Description | Where common |
|---|---|---|
| Subsistence | Grows food mainly for the farmer's family | Low-income countries; small farms |
| Commercial | Grows food to sell for profit | High-income countries; large farms |
| Intensive | High inputs (machinery, chemicals, irrigation) per unit of land → high yields | Netherlands, USA, UK |
| Extensive | Low inputs per unit of land; large areas needed | Australian sheep farming, cattle ranches |
What Affects Where Farming Occurs?
Physical factors:
- Climate: temperature and rainfall determine what crops grow
- Relief: flat land is easier to farm; steep slopes are used for grazing or terraced for crops
- Soils: deep, fertile soils are best for arable farming
Human/economic factors:
- Technology availability
- Market access (nearness to towns and transport)
- Government subsidies and policies
- Tradition and land ownership
The Green Revolution (1960s–1980s) introduced high-yielding crop varieties, irrigation, fertilisers, and pesticides to South and South-East Asia. It dramatically increased food production and prevented famines, but also raised concerns about environmental impacts and the dependency of smallholders on expensive inputs.
Environmental Impacts of Farming
- Deforestation: clearing land for agriculture is the main driver worldwide
- Soil erosion: ploughing and bare fields lose topsoil by wind and rain
- Water pollution: fertiliser and pesticide run-off into rivers
- Greenhouse gas emissions: livestock (methane), rice paddies, fertiliser use
Sustainable Farming
Sustainable approaches aim to produce food without destroying the environment:
- Organic farming (no synthetic pesticides/fertilisers)
- Crop rotation (maintains soil nutrients)
- Agroforestry (trees + crops together)
- Reducing food waste (30% of all food produced is lost or wasted)
In the UK, about 70% of land area is used for agriculture, mostly grassland for grazing. Despite this, the UK imports about half of its food — the land alone cannot feed the population. This makes trade and global supply chains vital for food security.
Real world: The Netherlands — the world's second-largest food exporter
The Netherlands is slightly smaller than West Virginia, yet it is the world's second-largest exporter of food and agricultural products (after the USA). It achieves this through extreme intensive farming: massive heated greenhouses lit by LED lighting grow tomatoes, peppers, and cucumbers year-round; precision drip irrigation uses 90% less water than conventional farming; and Dutch dairy farms use computer-monitored feeding systems. The Netherlands exports around €100 billion worth of food per year. It is a striking example of how technology and intensive farming methods can overcome limited land resources — but critics note the high energy use and environmental footprint.
Real world: Iowa — the US Corn Belt and industrial agriculture
Iowa in the US Midwest sits on some of the world's most fertile soils — deep, dark, nutrient-rich loam deposited by glaciers. Today, Iowa produces about 20% of all US corn (maize) and is a major soybean producer. Farming is highly mechanised and chemical-intensive: farms average 180 hectares, operated by GPS-guided tractors and combine harvesters. However, this intensive system comes with costs — the state has some of the most nitrate-polluted groundwater in the USA from fertiliser run-off, and the Mississippi River dead zone in the Gulf of Mexico is partly caused by agricultural nutrients washing through Iowa's rivers.
Real world: Ethiopia — subsistence farming under climate stress
About 80% of Ethiopia's population depends on subsistence farming, mostly small plots of 1–2 hectares growing staple crops like teff, sorghum, and maize. Rainfall is seasonal and unreliable — the 2015–16 El Niño drought was the worst in 50 years, leaving around 10 million Ethiopians needing food aid. Climate change is making such droughts more frequent and severe. Ethiopia has been expanding irrigated farming and high-yield crop varieties, but millions of smallholder farmers still depend on rain-fed agriculture — making food security highly vulnerable to climate variability.
Where do you see this in real life? Think about what you ate today — where was it grown? The label on a food product often tells you its country of origin. A UK supermarket shelf in January might carry tomatoes from Spain, green beans from Kenya, and apples from South Africa. This global supply chain connects farmers in dozens of countries with your plate — and makes understanding farming geography directly relevant to everyday life.