A Presentation by Amanda Tydings
SOL LS 11 and LS 12
Introduction
-Redwoods are found on the cost of California and Southern Oregon
-why they flourish in California and Oregon climate/fog/rainfall
-why they are called Redwoods
-less than 10 percent of original Redwood population survives
-although logged forests have been replanted it will take hundreds of years
to replenish
Size and Structure
-the world's tallest and oldest known tree
-500-800 yrs. old, 200-240 ft. tall, diameter 10-15 ft.
-largest Redwood today is 369 ft. tall and has a circumference of 26 ft.
-Root system shallow 10-13 ft. deep spread out 60-80 ft. when and why they
would topple over
-reproduction, sprouting ability
-understory species and wildlife
Ecology and Habitats
-clears the forest floor by burning plants and debris
-enriches the soil to encourage seed germination
-destroys fungi and bacteria which could kill seeds
-enhances forage for wildlife
-Talk about Native Americans and fire
-Fire suppression has interrupted natural cycles with negative effects on
ecosystems
-National parks and prescribed burns
-habitat of Marbled Murrelet
-Old growth forests and the Spotted Owl
Redwoods Compared to Trees in Virginia
-American Chestnut and Bald Cypress are very rot resistant like the Redwoods,
and these species helped the survival of the Redwoods
-Compare Redwood with the biggest tree in Virginia
-tallest measured tree in Va. Sweetgum 151 ft. tall and 17.8 ft. circumference
-Montgomery County has the largest known Boxelder in the state 60 ft. tall
and a circumference of 14.3 ft.
Outside Activity
-Show kids how age is measured
-teach kids how to measure DBH and height