
The controlled scientific experiments that were carried out in the Hubbard Brook experimental forest.

Answer to Problem 1CR
The controlled experiments that were conducted in the Hubbard experimental forest was to study the ecological effects of the environment. Researchers measured the volume and nutrient content of water when the forest was flourished with trees. After that researcher, examined the volume and nutrient content of water in the deforested valley, it was observed that the deforested valley have low volume and less dissolved nutrients in the water.
Explanation of Solution
The controlled experiment was done to examine the harmful environmental effects if the trees were cut in a particular area. The researches constructed a V-shaped dam at the bottom of frosted valleys in Hubbard Brook experimental forest. The dam was built in such a way that the entire surface that leaves the forest valley had to cross the dam. The researcher measured the volume and dissolved nutrients of the water.
Firstly, researchers measure the volume and dissolved nutrients of the water, when the forested valley was undisturbed. The results showed that undisturbed forest provided water with a high level of dissolved nutrients and also retain chemical nutrients in the soil.
After that researcher, cut down the trees and shrubs in the valley and sprayed herbicides to inhibit the growth of plants. The researcher examined the outflow of water. The results showed that the volume of water flowing from the valley was reduced with a low level of dissolved nutrients. The deforested valley was unable to retain nutrients in the soil, so the soil was rapidly eroded and became infertile.
Want to see more full solutions like this?
Chapter 2 Solutions
Environmental Science (MindTap Course List)
- Pretty much all the solidified lava you see near Kilauea and Mauna Loa is basalt. Using just the satellite imagery, how would you know that these lavas are basaltic (as opposed to andesitic or rhyolitic)?arrow_forwardCompare a passive solar heating system with an active solar heating system.arrow_forwardDescribe what the wind power as an energy source is. Describe 5 advantages of wind power as an energy source. Describe 5 disadvantages of wind power as an energy source. Discuss the future potential wind power as an energy source in the United States. Describe how you would convince the residents of the State of Connecticut to utilize more wind power as an energy sourcearrow_forward
- How is the biofuel ethanol produced?arrow_forwardDistinguish between reserves and resoircesarrow_forwardDescribe what kind of energy source oil ia. Describe 5 advantages of oil as an energy source. Describe 5 disadvantages of oil as energy source. Discuss the future potential of oil as energy source in the United States. Describe how you would convince the residents of the State of Connecticut to utilize more oil as an energy source.arrow_forward
- Why is burning of municipal waste to produce energy more common in Europe than in North America?arrow_forwardList 3 energy conservation tecniquesarrow_forward1. Use the elevations in Figure 7.12 as a guide for drawing contour lines. The 100-foot contour line is provided for reference. Using a 20-foot contour interval, draw a contour line for each 20-foot change in elevation below and above 100 feet (e.g., 60 feet, 80 feet, 120 feet). You will have to estimate the elevations between the points. Label each contour line with its elevation. 2. Does the land shown on the topographic map you constructed generally slope downward toward the north or south? 3. Show the direction each stream is flowing by drawing arrows on the map.arrow_forward
- Applications and Investigations in Earth Science ...Earth ScienceISBN:9780134746241Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. TasaPublisher:PEARSONExercises for Weather & Climate (9th Edition)Earth ScienceISBN:9780134041360Author:Greg CarbonePublisher:PEARSONEnvironmental ScienceEarth ScienceISBN:9781260153125Author:William P Cunningham Prof., Mary Ann Cunningham ProfessorPublisher:McGraw-Hill Education
- Earth Science (15th Edition)Earth ScienceISBN:9780134543536Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. TasaPublisher:PEARSONEnvironmental Science (MindTap Course List)Earth ScienceISBN:9781337569613Author:G. Tyler Miller, Scott SpoolmanPublisher:Cengage LearningPhysical GeologyEarth ScienceISBN:9781259916823Author:Plummer, Charles C., CARLSON, Diane H., Hammersley, LisaPublisher:Mcgraw-hill Education,





