Abiotic FactorsAbiotic factors, including light, temperature, moisture, and soil conditions are vital parts of the survival of the Redwood forests.
Light
Redwoods can thrive in areas with little sunlight because they are a shade-tolerant species. Temperature
The redwood coast maintains fairly constant year-round temperatures between 50 and 70 degrees Fahrenheit. This climate allows the redwoods to focus on growing, rather than protecting themselves from extreme climate change. However, they are able to survive brief heat waves and winter chills. Soil
Redwoods survive best on soil with high organic content, ranging from a pH of 5.0-6.5. The soil serves as a source of nutrition for the trees and other plants growing in the forest. Moisture
Coast redwoods require a massive amount of moisture to survive. One tree may consume up to 500 gallons of water each day. From October through April, precipitation ranges from 60-80 inches of annual rain. |
Biotic FactorsDecomposers
During periods of high rainfall, nutrients from the soil are depleted. Redwoods utilize decaying plant matter to make up for the depleted soil nutrients. Without mosses, fungi, and other organisms that help break down matter, the Redwoods wouldn't be able to get all of the needed nutrients. Invasive Species The health of the redwood forest is affected by invasive plant species. These species alter natural biological cycles and create competition for water, space, light, and nutrients. Some exotic plant species include pampas grass, brooms, periwinkle, and cape ivy. |