Long-term studies of the nutrient balance at the Hubbard Brook Experimental Forest show that
much of the SO
4
2 −
entering via atmospheric deposition passes through vegetation and microbial biomass before being released to the soil solution and stream water
. Gaseous emission loss of sulfur is probably small.
What was the conclusion of the Hubbard Brook experiment?
All of the vegetation in one of Hubbard Brook’s seven watersheds was cut and then the area was treated with the herbicides. At the time the conclusions were startling:
deforestation resulted in much larger runoffs into the streams
.
Which is the most significant finding of the Hubbard Brook experiment?
Which is the most significant finding of the Hubbard Brook experiment? In an ecosystem,
matter is constantly being recycled
. In contrast, such as that from the Sun, is never recycled.
What was the goal of the original Hubbard Brook study?
The major emphasis in these early studies was to determine
the impact of forest land management on water yield,water quality, and flood flow
. The Hubbard Brook Ecosystem Study originated in 1960 with the idea of using a small watershed approach to study element flux and cycling.
What was the purpose of the Hubbard Brook paired watershed experiment?
Background. The HBEF was established in 1955 for the purpose of
studying the effects of forest management on streamflow and water quality
, building upon pioneering work from other sites that established the efficacy of the paired small watershed approach (Bates and Henry 1928).
Where is Hubbard Brook Experimental Forest?
The Hubbard Brook Experimental Forest was established in 1955 as a major center for hydrologic research in New England. Located
in the White Mountain National Forest in central New Hampshire
, the 3,138-ha bowlshaped Hubbard Brook Valley has hilly terrain, ranging in elevation from 222 to 1,015 m.
What ecological lesson can we learn from the controlled experiment on the clearing of forests?
1. What ecological lesson can we learn from the controlled experiment on the clearing of forest described in the Core Case Study that opened this chapter?
Vegetation controls water and nutrient loss from ecosystems. Loss of vegetation diminishes the systems’ ability to retain nutrients and water
.
How was the total number of birds at the Hubbard Brook Experimental Forest changed over time?
A new study, published in Science, finds that the number of birds in North America has declined by 29 percent since 1970. Researchers have been tracking changes in bird populations at Hubbard Brook for
50-plus years
.
How old is the Hubbard Brook forest?
Established in 1955
by the USDA Forest Service, the Hubbard Brook Experimental Forest is a 7,800-acre northern hardwood forest situated within the White Mountain National Forest in New Hampshire.
What is the discipline that applies ecological principles to returning degraded ecosystems to more natural states?
degraded ecosystems to a more natural state is known as. (A)
restoration ecology
.
Why are scientific theories and laws the most important and certain results in science?
Explain why scientific theories and laws are the most important and most certain results of science. They’re the most important result
because they’re both very well tested and widely accepted sources
. tentative (frontier) science, reliable science, and unreliable science.
What is the largest watershed in America?
The Mississippi River watershed
is the biggest watershed in the United States, draining more than three million square kilometers (one million square miles) of land.
Who led the Hubbard Brook experiment?
Cary Institute of Ecosystem Studies
President Emeritus Gene Likens
co-founded the Hubbard Brook Ecosystem Study and started many of its crucial monitoring programs in the 1960s.
What ecological lesson can we learn from the controlled experiment described in the core case study that opened this chapter?
What ecological lesson can we learn from the controlled experiment on the clearing of forests described in the Core Case Study that opened this chapter?
Trees are very important on preventing water eroding the soil. It is important to stop deforesting.
How does the sun transmit energy from millions of miles away into the Earth system?
How does the Sun transfer energy from millions of miles away to Earth?
Through the rays of lights it sends out to the Earth
. … The potential energy of the object turns into kinetic energy.
In what year did the loss of calcium from the experimental site begin a sharp increase?
Sharp increase in the loss of calcium began in the year
1956
.
