get in touch with trees! lesson 1. why are forests important? habitat economy recreation ...
TRANSCRIPT
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C L I M AT E C H A N G E A N D M I C H I G A N F O R E S T S
Get in Touch with Trees!Lesson 1
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Why Are Forests Important?
Habitat
Economy
Recreation
Nutrient cycling
Air purification
Other______________
Prevent soil erosion
Water retention
Cooling
Carbon sink
Jobs & Careers
Other ______________
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How do plants grow?
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What factors affect plant growth?
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Temperature:How does temperature affect plant growth?
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• Temperature determines how fast photosynthesis occurs.
• Temperature influences how much water is available for plants to use for photosynthesis.
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Precipitation:How does precipitation help plants grow and survive?
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• Photosynthesis – Precipitation influences how much water plants can access and use for photosynthesis and growth.
• Heat movement – Plants allow water vapor to exit openings in the leaves, taking heat with it.
• Structure – Water held in plant cells gives plant leaves and stems shape and structure.
Precipitation
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Light:How does light affect plant growth?
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• The amount of light and the intensity of light plants receive determine how much energy is available for photosynthesis.
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Soil:How does soil type affect plant growth?
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• Soil type determines how much water and what types of minerals are available.
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Temperature
Precipitation
SoilLight
Are these factors the same in every environment?
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Trees grow where they
are adapted to
live
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• Smaller, waxy needles limit water loss and protect photosynthetic cells.
• Keeping leaves year-round saves energy and allows photosynthesis to occur when conditions permit.
• The cone shape of the tree helps conifers drop heavy snow.
Conifers are adapted to colder climates
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• Broad, flat leaves capture more light.
• The open shape of the branches exposes leaves to the maximum amount of light possible.
• Shedding leaves prevents water loss and damage during winter.
Deciduous trees are adapted to more moderate climates
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• Forests provide important services for humans and the environment.
• Factors that affect plant growth include: temperature, precipitation, light, and soil type.
• Plants are adapted to grow in a particular environment.
Wrap Up