Podcast
Questions and Answers
Which of the following best explains why rainforest regions generally experience high levels of rainfall?
Which of the following best explains why rainforest regions generally experience high levels of rainfall?
- Rainforests are located near mountain ranges, causing orographic lift.
- The tilt of the Earth causes increased precipitation in tropical areas.
- Polar air masses converge, resulting in frontal precipitation.
- High temperatures lead to increased evaporation and condensation, forming large clouds. (correct)
In a rainforest ecosystem, what role do decomposers play in nutrient cycling?
In a rainforest ecosystem, what role do decomposers play in nutrient cycling?
- They facilitate the uptake of water from the soil.
- They break down dead material, releasing nutrients back into the soil. (correct)
- They provide shelter for insects and small animals.
- They convert solar energy into chemical energy.
Which of the following is a direct impact of deforestation on climate change?
Which of the following is a direct impact of deforestation on climate change?
- Enhanced greenhouse effect due to increased carbon dioxide. (correct)
- Decreased carbon dioxide in the atmosphere.
- Increased carbon sequestration.
- Reduced greenhouse gas emissions.
What is a potential consequence of removing trees from a rainforest ecosystem on soil erosion?
What is a potential consequence of removing trees from a rainforest ecosystem on soil erosion?
Which of the following economic activities is most likely to contribute to deforestation in rainforest regions?
Which of the following economic activities is most likely to contribute to deforestation in rainforest regions?
How does the presence of evergreen trees contribute to photosynthesis in the rainforest?
How does the presence of evergreen trees contribute to photosynthesis in the rainforest?
What is the relationship between biodiversity and habitat in the rainforest ecosystem?
What is the relationship between biodiversity and habitat in the rainforest ecosystem?
What role do trees play as carbon sinks in the context of climate change?
What role do trees play as carbon sinks in the context of climate change?
Which of the following is an example of sustainable management of deforestation?
Which of the following is an example of sustainable management of deforestation?
Which statement describes the likely effect of increased road building in rainforest areas?
Which statement describes the likely effect of increased road building in rainforest areas?
Flashcards
Habitat
Habitat
The environment where a plant or animal can live.
Biodiversity
Biodiversity
Number of plants and animals species living in an area.
Greenhouse gases
Greenhouse gases
Gases which trap heat within the earth’s atmosphere.
Impacts of greenhouse gases
Impacts of greenhouse gases
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Trees as carbon sink
Trees as carbon sink
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Decomposition
Decomposition
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Soil erosion
Soil erosion
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Ecotourism
Ecotourism
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National Parks
National Parks
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Sustainable
Sustainable
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Study Notes
Location and Climate
- Rainforests are located between the tropics.
- The climate is warm all year round, with temperatures between 26 and 29°C.
- Rainforests have a high amount of rainfall: 2145mm annually.
Explanation of the Climate
- Receive intense solar radiation.
- High evaporation of water.
- Hot, moist air rises into the atmosphere, creating a low-pressure area.
- As air rises and cools, it condenses, forming large clouds.
- Rainfall is heavy each month in rainforests.
Rainfall and Temperature Measurements
- Rainfall is measured monthly using discrete data.
- Temperature is recorded using continuous data.
- The altitude is 77m.
- The climate is 27.4°C / 77.3°F.
Rainforest Ecosystem
- Rainforests provide a suitable habitat for plants and animals.
- Rainforests exhibit high biodiversity, with over 50% of the world's species living there, despite covering only 6% of the world's land surface.
- Dense vegetation allows photosynthesis year-round due to the warm, wet climate.
- Evergreen trees grow easily due to suitable temperature.
- Numerous species of animals are able to produce various vegetation layers throughout the year, providing a wide range of habitats.
Climate Charge
- Greenhouse gases trap heat within the Earth's atmosphere.
- Carbon Dioxide and Methane are examples of greenhouse gases.
- Greenhouse gases are produced by burning fossil fuels and agricultural activities.
- Increased greenhouse gases lead to climate change, causing the Earth's temperature to rise.
- Trees act as carbon sinks by taking in carbon dioxide through photosynthesis and storing it in the trees and soil.
Soils
- Soil is a mixture of organic materials and minerals.
- Decomposition: the breaking down of dead material by microorganisms.
- Nutrient Cycle: Dead material decomposes > forms soil > nutrients goes into the soil > nutrients return to the soil via trees/plants.
- The removal of soil is Soil erosion.
Causes of Soil Erosion After Deforestation
- Trees protect the ground and intercept rainfall
- Removing trees causes rain to hit the soil directly, leading to increased runoff and erosion.
Causes of Deforestation
- Subsistence Farming: Small areas of forest are cleared and burned; the land is then farmed, allowing for regrowth after 5-10 years.
- Commercial Farming: Trees are farmed to produce a profit.
- Logging: Trees are cut and transported to sawmills
- Mineral Extraction: The removal of solid mineral resources.
- Energy Development: Clear land created for hydroelectric power plants.
- Settlement: Land is cleared to make way for buildings.
- Road Building: Roads are built for settlements, quarries, and farms; more areas of the rainforest become accessible when more roads are introduced.
Impacts of Deforestation
- Loss of biodiversity.
- Soil erosion and flooding
- Climate change increases.
- Income for companies Increases.
- Increased GNI for countries.
- Employment in mines or at HEP dams.
- More tax for governments to spend on literacy rates or healthcare.
- Local people lose their land or access to resources.
Sustainable Management Deforestation
- Something that lasts into the future, that does not damage the environment and supports local people
- National Parks: An area protected by law to look after the natural environment where there's monitoring by park rangers.
- Ecotourism: Tourism which is sustainable, employs local people, uses natural material and small scale.
Big Concepts
- Scale can be local (such as a town or village), it can also be national (such as a country or a global scale).
- Stakeholders can be local people( the entire world) , national governments, conservation groups and large companies.
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Description
Explore the climate and ecosystem of rainforests, located in the tropics. Characterized by warm temperatures, high rainfall, and intense solar radiation, these forests support incredible biodiversity. Discover rainfall, temperature measurements, and the significance of dense vegetation.