Rural Environments Flashcards
Distribution and Characterisitcs of Biomes
What is biosphere?
The parts of the earth where life exists. It is made up of the atmosphere, lithosphere and hydrosphere.
Distribution and Characterisitcs of Biomes
What is biodiversity?
The variety of different plant and animal species that exist within an ecosystem.
Distribution and Characterisitcs of Biomes
What is an ecosystem?
An ecosystem is a community of interacting biotic and abiotic organisms.
What is a biome?
Collection of ecosystems with similar climate conditions. This means that biomes are controlled by climate.
What is climate?
Climate is the long-term weather pattern in a region typically averaged over 30 years
What is weather?
Weather is the day-to-day conditions of the atmosphere at a particular place. It includes temperature, precipitation, cloud cover and wind speed.
Explain the 5 factors affecting biome distribution:
- Latitude: The further distance from the equator; temperatures and sunshine hours decrease.
- Precipitation: Areas of high pressure experience low rainfall, low pressure areas experience high rainfall.
- Altitude: Increase in altitude leads to decrease in temperatures.
- Continentality: Locations further inland heat up more quickly in the summer and cool more quickly in the winter.
- Ocean Currents: Warm and cold currents circulate in the oceans either warming or cooling the adjacent land.
Ecosystem Goods And Services
All ecosystems have inputs, stores, transfers and outputs, explain each:
Inputs: Solar radiation and precipitation
Stores: Biomass and soil
Transfers: energy is transferred through food chains and webs.
Outputs: Gases, dead matter.
What are ecosystem services?
Ecosystem services are the many and varied benefits to humans provided by the natural environment and healthy ecosystems. The services provided by the ecosystem are essential for life to survive.
What are the 4 groups of services provided by ecosystems?
Provisioning
Regulating
Cultural
Supporting
Give examples of the provisioning service provided by tropical rainforests:
- Timber
- Medicine
- Water
- Fuel
Give examples of the regulating service provided by tropical rainforests:
- Climate
- Water quality
- Soil Quality
- Air quality
- Waste decomposition
Give examples of the cultural service provided by tropical rainforests:
- Health and spiritual benefits
- Employment
- Leisure and recreation
Give examples of the cultural service provided by tropical rainforests:
- Health and spiritual benefits
- Employment
- Leisure and recreation
Give examples of the supporting service provided by tropical rainforests:
- Soil formation
- Nutrient cycling
Human Impact on Ecosystem
What are the four groupings commonly used to categorise farming:
- Arable and pastoral
- Commercial and subsistence
- Extensive and intensive
- Nomadic and Sedentary
What is extensive farming?
A farm with low inputs or yield per hectare e.g. sheep farming
What is intensive farming?
A farm with high inputs or yield per hectare e.g. battery chicken farming
What is nomadic farming?
Farmers move seasonally to different areas with their livestock
What is sedentary farming?
The same area of land is farmed year after year.
Why are farms systems?
Because they have inputs, processes and outputs.
What are the Impacts of Farming Systems?
- Reducing amount of biomass
- Food webs are reduced.
- Monoculture which reduces diversity because the animals have no access to a wide range of foods.
What is monoculture?
the cultivation or growth of a single crop or organism especially on agricultural or forest land.
What is shifting cultivation?
Shifting cultivation isan agricultural practice in which a plot of land was cultivated temporarily and is abandoned to allow vegetation to grow freely while the cultivator moves to another plot.