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Term | Definition |
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Recall the 8 terrestial biomes | tundra, polar, grasslands, temperate, boreal, desert, mountain veg, tropical |
two features of the temperate forest | 4 seasons and mainly human population lives there Distribution: between polar and tropics (aka deciduos Forest) China, Parts of Russia, USA |
What is the Green Revolution? | The major changes in farming regions (on a global scale) in 1950-1974. (eg. new grains, adoption of new farming vehicles and fertiliser and pesticide use |
6 threats to food security | armed conflict, climate change, non-native plants and animals, land for fuel, competition for land and water scarcity |
Definition of food security and 3 factors | a state where all people have the access to safe, nutritious food to sustain a healthy life. Factors: Knowledge and resources for use, availiabily and accesibility |
Two schools of thoughts on population growth with data. | 1. Population growing to fast for farmers to keep up and most growth is happening in places with the most food insecurity (200k increase per day, 2.5 billion more extra to feed by 2050). |
Second school | 2. Food production has kept up with demand, new technology is helping us adapt faster Data: Graph shows population growth when new technology was introduced, green rovolution |
Why the majority of the land is unsuitable for food production | Not all biomes have the conditions to grow crops/food (soil water etc) , soil degradation, water scarcity for irrigation, |
Threats to food security (Armed conflict) | -When war occurs between different or single countries Famines, droughts Somalia: Decades of food shortages, distribution points, small farms for food international aid |