Survey
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
Download 313 - CSU, Chico
Transcript
Importance of Plants to Man Plants are important to people because they: • provide oxygen to animals. • are a source of food. • produce by-products such as dyes, decorative bark. • provide fiber which is used for fabric. • may be used to alter the local environment. • provide shelter, roofing, and building materials. • produce medicinal chemicals. Model Agricultural Core Curriculum: Supplement University of California, Davis 313.T1 Importance of Plants to Man Ways in which Plants Alter their Environments • Shade. • Beautification. • Windbreaks. • Production of nitrogen in legumes. • Erosion control. • Noise control. • Reduction of glare. Model Agricultural Core Curriculum: Supplement University of California, Davis • Act as settling chambers for pollutants. 313.T2 Importance of Plants to Man Shade • Reduces loss of soil moisture by cooling the soil. • Reduces local air temperature. Model Agricultural Core Curriculum: Supplement University of California, Davis 313.T3 Importance of Plants to Man Windbreaks • Reduce soil moisture loss by reducing evapo-transpiration. • Warm areas in cool weather by reducing the wind chill factor. • Prevent soil erosion. Model Agricultural Core Curriculum: Supplement University of California, Davis 313.T4 Importance of Plants to Man Erosion Control • Roots capture soil particles as they wash across the surface of the ground. • Leaves capture and slow rain water so soil particles are not so easily dislodged. Model Agricultural Core Curriculum: Supplement University of California, Davis 313.T5 Importance of Plants to Man Noise Control • Plants block sound waves from noisy streets, railroads, or buildings. Model Agricultural Core Curriculum: Supplement University of California, Davis 313.T6 Importance of Plants to Man Reduction of Glare • Plants absorb and soften sunlight. • Plants shade areas to reduce glare from sidewalks, streets, and buildings. Model Agricultural Core Curriculum: Supplement University of California, Davis 313.T7 Importance of Plants to Man Beautification • Plants help to make areas more attractive. Model Agricultural Core Curriculum: Supplement University of California, Davis 313.T8 Importance of Plants to Man Production of Nitrogen in the Soil • Soil micro-organisms coexist with legumes to make nitrogen for the host plant, as well as other nearby plants. Model Agricultural Core Curriculum: Supplement University of California, Davis 313.T9 Importance of Plants to Man Plants Act as Settling Chambers • Plants absorb particulate pollution (pollution which is in particles) and hold them within themselves . Model Agricultural Core Curriculum: Supplement University of California, Davis 313.T10
