People and the biosphere
- Created by: KHand21
- Created on: 24-02-18 21:17
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- People & the Biosphere
- Types of biomes
- Taiga biome: high latitudes where the sun's rays are weak with a cold climate
- Temperate biome: high rainfall and seasonal variations of Sun's rays.
- Biome is an ecosystem on a global scale
- An ecosystem is a group of animals and plants that interact
- Biodiversity is the number of different species of flora and fauna
- Biome is an ecosystem on a global scale
- Tropical biome: hot with heavy rainfall found either side of the equator.
- Tundra biome: within the Artic circle with little Sun and heat.
- Desert biome: close to the tropics of Capricorn and Cancer and are very hot during the day.
- Local Factors
- Rock/soil type: this affects how fertile the areas are
- An abiotic factor, a non-living component
- Altitude: the higher the altitude the lower the temperature
- Drainage: this affects how much water is retained in the soil
- Rock/soil type: this affects how fertile the areas are
- Global Factors
- Precipitation: conventional and relief rainfall affecting water levels
- Sunshine hours: length of sunshine will affect the rate plants produce energy
- Temperature: this is dependent on the level of the Sun's energy, also affecting climate
- Latitude: the tilt of the Earth, changing the concentration of the Sun's rays
- Life support system
- Regulates gases: plants absorb CO2 and produce oxygen for respiration
- A biotic factor, a living component
- Regulates the water cycle: plants slow the flow of water to rivers and filter water to make it clear
- Nutrient cycle: new nutrients are provided by rotting plant material
- Also provides goods such as food, shelter, medicine and wood
- Regulates gases: plants absorb CO2 and produce oxygen for respiration
- Theories
- Boserup thought we could solve this through technological fixes and human innovation
- Malthus thought it would be impossible to increase food production to match the growing population
- This would result in the food supply running out and lead to war and famine
- Types of biomes
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