Forests. Are important!

Transcription

1 Forests Are important!

2 Wolves Change Rivers

3 Questions 1. What is a TROPHIC CASCADE? 2. Why were there more deer in Yellowstone national park? 3. Connect reintroduction of wolves with more willow and aspen trees 4. Connect reintroduction of wolves with larger beaver, muskrat and reptile populations Connect the reintroduction of wolves with the change in the direction of rivers. 6. How does this connect to your assignment about endangered organisms?

4 Forests ⅓ of the worlds surface is taken up by forest biomes. The largest forest biomes are the TROPICAL RAINFOREST and the CONIFEROUS/BOREAL/TAIGA FOREST.

5 Temperate Rainforest That s ours It is different from the Boreal forest because of the rapid growth of giant conifers trees, like the western red cedar.

6 Why are Forests Important? Can you think of 5 reasons? Think of 5 reasons!

7 Importance of forests 1. Nutrient Cycle: The leaf litter adds nutrients, decaying organic matter builds top layer of soil, prevents erosion. 2. Climate Control: Trees reduce force of wind, create shade and add moisture to the atmosphere (which creates clouds, and increases rainfall. 3. CO2 Absorption: Trees absorb CO2 and give off oxygen. Tropical Rainforests grow all year so they continue this process constantly. Trees are carbon sinks

8 Importance of forests 3. Stop Erosion: Tree roots anchor the soil so runoff does not wash soil away. Branches and leaves catch raindrops and slow down water falling to the ground = more absorption. 4. Habitat: Many animals and plants live in forests!

9 The Lumber Industry We use trees for lumber. The lumber industry in North America and Asia supplies the building industry with supplies. Trees are replanted to replace the trees that are cut down. On the west coast, after 80 years the trees are ready to be cut down again. Is lumber a renewable resource? Why or why not?

10 Silviculture The practice of caring for forest lands: - Replanting logged areas Thing areas that are too dense Remove diseased trees Insure that forests stay constant and healthy UBC has a Forestry program which teaches silviculture. scussion/

11 Tropical Rainforests are in Trouble Why? - Cattle ranching Farming Logging Mining Hydro dams

12 RAinforests are in Trouble Equatorial countries are poor and have huge foreign debts. Local governments can use rainforest resources to pay debts and improve the standard of living for the local population.

13 What can be Done? 1. In the past the Brazilian government has begun to pay farmers $30 a month to protect the rainforest. THIS IS EFFECTIVE! They can use this money to buy necessities, and are not as inclined to cut down trees.

14 What can be done? 2. Buy carbon offset credits. When people burn carbon, they can purchase carbon credits. ADPML works with 80 indigenous families to train them in land and land-use stewardship in an area of the Brazilian rainforest that is being logged rapidly and illegally to make room for cattle ranching that further degrades the land. Carbon Offset Projects: -carbon-offset-projects

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16 Calculate your Footprint Carbon Offset Calculator:

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18 What can be done? 3. Stop using products with palm oil. Take the challenge:

19 Homework: P Questions Why are forests important? Explain silviculture Why is deforestation prevalent in Brazil? How do hydroelectric dams affect the environment

20 BC s Great Bear Rainforest The Great Bear Rainforest covers 70,000 square km of BC coastline. In 2016 it became more protected.

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22 The Great Bear Rainforest Agreement The Great Bear Rainforest increases the amount of protected old-growth forest from 50% to 70%. Eight new areas covering almost 295,000 hectares will be off-limits to logging with 85% (3.1 million hectares) of the forest protected and 15% (550,000 hectares) available for logging to support local jobs and strengthen the region s communities. The agreement also addresses First Nations cultural heritage resources, freshwater ecosystems, and wildlife habitat. The amount of habitat protected for marbled murrelet, northern goshawk, grizzly bear, mountain goat, and tailed frog will increase as each new reserve is developed.

23 The Great Bear Rainforest Agreement The Province signed agreements with the aligned Coastal First Nations, Nanwakolas Council and other individual First Nations to address specific concerns identified by First Nation communities. Most notably, many First Nations will have an increased stake in the region s forest sector. The Province has also updated agreements with Coastal First Nations, Nanwakolas Council and other first individual First Nations to increase their allocation of forest carbon credits to sell and utilize for development projects of importance to them. In 2015, working with many of the same First Nations and employing the same ecosystem-based management approach, four Marine Plans for the areas next to the Great Bear Rainforest were completed through the Marine Plan Partnership. With the Great Bear Rainforest and Marine Plan Partnership combined, the largest land and marine ecosystem in the world will be managed using EBM.(Ecosystem based forest management)

24 IS the great Bear Rainforest safe forever? Why or why not?

25 Boreal Forests

26 Boreal Forests in Canada - 11% of the earth s surface is Boreal Forest.

27 Are forest fires always bad? - Fires burn down areas of forest every years year stands of timber absorb more carbon than those that are over 70 years old - What does this mean? - There is a forest life cycle that involves fire. - Forest fires can be a natural part of a forests ecosystem management.