Topic 8- Forests Under Threat Flashcards
(28 cards)
Enquiry Question
How does the equatorial climate impact the structure of the tropical rainforest?
How does the equatorial climate impact the structure of the tropical rainforest?
The equatorial climate’s heat, humidity, and rainfall create ideal conditions for dense, diverse tropical rainforests with rapid plant growth and unique species.
How interdependent are biotic and abiotic characteristics?
Biotic and abiotic factors depend on each other; living things need non-living elements to survive, and in return, living things affect their environment.
How have plants and trees adapted for the tropical rainforest?
Tall, straight trunks to reach sunlight.
Large, broad leaves for efficient photosynthesis.
Drip tips on leaves to shed excess rainwater.
Roots close to the surface of the soil
How have trees and plants adapted in the boreal forests?
Needle-shaped leaves to reduce water loss and survive cold, dry winters.
Thick bark for insulation against the cold.
Evergreen nature to photosynthesize year-round when possible.
Taiga forests climate
Short, wet summers of three months when temperatures can rise to 20°C.
Long cold, dry winters with several months below freezing, as low as -20°C.
Tropical rainforest climate
The climate in rainforests remains warm and humid all year round, with temperatures typically between 25°C to 30°C (77°F to 86°F). Rain is frequent.
Adaptions animals have are…
camouflage and climbing abilities. This is seen in predators and prey. An example of this is the grey fox found in taiga forests.
Why do tropical rainforests have less litter than taiga forests?
The taiga forest has more litter than tropical rainforests because its cold climate slows down decomposition. In the taiga, low temperatures and short growing seasons cause organic material to decompose more slowly.
Why have tropical rainforests got more biomas?
Rainforests have more biomass due to warm temperatures, constant rainfall, and rapid plant growth, supporting dense vegetation and high animal populations.
Why have tropical rainforest have more nutrients in its soil than boreal forests?
Litter decomposes much quicker meaning the soil has more nutrients.
Definition of biomas
Biomass is the total amount of living matter in an ecosystem, including plants, animals, and microorganisms.
What is direct threat?
refers to an immediate danger or risk that directly impacts an environment, species, or area, such as deforestation, or natural disasters.
Definition of agriculture
Agriculture is the practice of growing crops and raising animals for food, clothing, and other products.
Why has the demand for deforesation gone up?
More people need space to live and build.
Farmers need land to grow food and raise animals.
Trees are cut down for wood and paper.
Countries want to grow their economies.
Definition of indirect threat
risk that affects the environment or species indirectly, often as a result of human activities, like climate change or pollution, rather than direct harm.
What are global actions such as CITES and REDD?
CITES (Convention on International Trade in Endangered Species): A global agreement to protect endangered animals and plants by regulating or banning their trade.
REDD (Reducing Emissions from Deforestation and Forest Degradation): An international effort to reduce climate change by preventing deforestation and promoting forest conservation in developing countries.
One disadvantage for CITIES and REDD
CITIES- protects species, not the ecosystem meaning it does not help with climate change as much.
REDD- Hard to monitor – they get donations on external funding and donations. This means that if the donations stop its over
What is the Juma Sustainable Development Reserve?
The Juma Sustainable Development Reserve (SFR) is a protected area located in the state of Amazonas. This acts as an REDD. Without protection, 60% of Juma’s forest would have gone by 2050. On the other hand Juma SFR relies on donations, especially from Marriott hotels. If these stop, the project may stop.
Definition of afforestation
Planting trees with replacements different forms of sustainable once trees have been cut down
Definition of sustainable farming
Sustainable farming is a way of growing crops and raising animals that protects the environment, conserves resources, and supports farmers’ livelihoods without damaging the land for future generations. For example, crop rotation helps maintain soil health and reduce the need for chemical fertilizers.
What is crop rotation?
Crop rotation is the practice of growing different types of crops in the same field in a planned sequence over several seasons. This helps improve soil health, reduce diseases, prevent soil depletion. For example, growing peas one year and corn the next helps restore nitrogen in the soil.
Why do taiga forests need extra protection?
The taiga is a fragile ecosystem and takes a very long time to recover from damage.
Negatives for sustainable forestry
Sustainable management is expensive and long term. It is usually only possible for large companies or when international organisations provide funding.
