Question and answer
what is the life cycle of the loblolly pine?
this study we analyzed the effects of silvicultural treatments on carbon (C) budgets in Pinus taeda L. (loblolly pine) plantations in the southeastern United States. [ We developed a hybrid model that integrated a widely used growth and yield model for loblolly pine with published allometric and biometric equations to simulate in situ C pools. The model used current values of forest product
conversion efficiencies and forest product decay rates to calculate ex situ C pools. Using the model to evaluate the effects of silvicultural management systems on C sequestration over a 200 year simulation period, we concluded that site productivity (site quality), which can be altered by silviculture and genetic improvement, was the major factor controlling stand C density. On low productivity sites, average net C stocks were about 35% lower than in stands with the default average site quality; in contrast, on high quality sites, C stocks were about 38% greater than average productivity stands. If woody products were incorporated into the accounting, thinning was C positive because of the larger positive effects on ex situ C storage, rather than smaller reductions on in situ C storage. The use of biological rotation age (18 years) was not suitable for C sequestration, and extended rotation ages were found to increase stand C stock density. Stands with an 18-year-rotation length had 7% lower net C density than stands with a 22-year-rotation length; stands with a 35-year-rotation length had only 4% more C than stands harvested at age 22 years. The C sequestered in woody products was an important pool of C storage, accounting for ~34% of the average net C stock. Changes in decomposition rate, associated with possible environmental changes resulting from global climate change, affected C storage capacity of the forest. When decay rate was reduced to 10% or increased to 20%, the C stock in the dead pool (forest floor and coarse woody debris) was reduced about 11.8 MgC·ha-1 or increased about 13.3 MgC·ha-1, respectively, compared to the average decay rate of 15%. ]
Expert answered|recstudio|Points 81|
Question
Asked 10/25/2011 8:27:14 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
describe the life cycle of the loblolly pine
Weegy: Pinus taeda (loblolly pine) is the foundation of the lumber and pulp industry in the Southeast and is found widely planted. Pinus taeda was first described as a species in 1753. [ The scientific name means ìpine used for torches.î Common names include bull pine, oldfield pine, shortleaf pine, Arkansas pine, North Carolina pine, Georgia pine, resin pine, mudhole pine, rosemary pine, frankincense pine, and lob pine. The accepted common ... (More)
Question
Expert Answered
Asked 10/25/2011 8:21:44 AM
0 Answers/Comments
why did the development of the seed greatly improve the ability of angiosperms and conifers to survive and succeed?
Weegy: Please see check the link: (More)
Question
Expert Answered
Asked 10/25/2011 8:33:05 AM
0 Answers/Comments
Describe the neutral theory of kimura?
Weegy: The neutral theory of molecular evolution states that the vast majority of evolutionary changes at the molecular level are caused by random drift of selectively neutral mutants (not affecting fitness).[1] The theory was introduced by Motoo Kimura in [ the late 1960s and early 1970s, and although it was received by some as an argument against Darwin's theory of evolution by natural selection, Kimura maintained (and most evolutionary ... (More)
Question
Expert Answered
Asked 10/27/2011 5:14:21 AM
0 Answers/Comments
Describe the neutral theory of kimura?
Weegy: Kimura's neutral theory, first presented in 1968, challenged the notion that natural selection was the sole directive force in evolution. [ Arguing that mutations and random drift account for variations at the level of DNA and amino acids, Kimura advanced a theory of evolutionary change that was strongly challenged at first and that eventually earned the respect and interest of evolutionary biologists throughout the world. This volume ... (More)
Question
Expert Answered
Asked 10/27/2011 5:09:52 AM
0 Answers/Comments
what difference exist between selectionist and naturalistic theories regarding the selection process?
Weegy: Natural selection is the nonrandom process by which biologic traits become more or less common in a population as a function of differential reproduction of their bearers. It is a key mechanism of evolution. [ In contrast, the selectionist theory is the view that evolution or genetic variation occurs chiefly as a result of natural selection. ] (More)
Question
Expert Answered
Asked 10/27/2011 5:33:49 AM
0 Answers/Comments
17,158,923 questions answered
Popular Conversations
This summer, Joel's plan was to ...
Weegy: This summer, Joel's plan was to travel. The answer is infinitive. User: We were annoyed by their ...
8/27/2014 12:24:03 PM| 4 Answers
One of the most important ideas of “Ozymandias” is the a. ...
Weegy: One of the most important ideas of Ozymandias (a.) permanence of sculpted monuments. User: The question ...
8/27/2014 5:41:56 AM| 3 Answers
Women and minorities gained ground during WW II primarily ...
Weegy: User: This program allowed Mexican nationals to work temporarily in the U.S. during WW II. a. Rosie the ...
8/27/2014 6:58:02 AM| 2 Answers
Market speculation resulted in which of the following? a. Stocks ...
Weegy: b.stocks became undervalued. User: How did economic nationalism affect trade in the world? a. Nations did not ...
8/27/2014 10:12:20 AM| 2 Answers
Which words in the sentence are the predicate adjectives? A snake's ...
Weegy: What is the underline word?
8/27/2014 10:36:01 AM| 2 Answers
who was president in 1963
8/27/2014 11:55:02 AM| 2 Answers
Dr. Lazar admired the work of the nuns of the Sisters of Charity ...
Weegy: A. purpose User: Jake's friends all describe him as an affable person. He often allows others to go before ...
8/27/2014 3:56:41 PM| 2 Answers
Eukaryotic cells have a variety of specialized structures called ...
Weegy: Eukaryotic cells have a variety of specialized structures called organelles. User: Which organelle would you ...
8/27/2014 5:26:11 PM| 2 Answers
In a booster club, 1/8 of the 128 members are men. How many male ...
Weegy: In a booster club, 1/8 of the 128 members are men....There are D) 16 male members in the club User: What is ...
8/27/2014 5:47:42 PM| 2 Answers
Weegy Stuff
S
R
L
1
1
P
C
1
P
1
1
L
P
C
P
C
1
P
C
L
P
C
1
P
C
P
C
Points 2407 [Total 24007]| Ratings 3| Comments 2377| Invitations 0|Offline
S
L
1
L
Points 2072 [Total 6048]| Ratings 8| Comments 1992| Invitations 0|Offline
S
L
C
P
C
1
L
L
Points 1961 [Total 15575]| Ratings 11| Comments 1851| Invitations 0|Offline
S
L
P
C
L
P
C
P
C
L
P
C
P
C
P
C
Points 1793 [Total 16820]| Ratings 5| Comments 1743| Invitations 0|Online
S
L
1
1
1
1
L
1
Points 1746 [Total 9453]| Ratings 2| Comments 1726| Invitations 0|Offline
S
L
P
C
P
C
1
L
P
C
L
P
C
P
C
P
C
P
C
Points 895 [Total 18466]| Ratings 0| Comments 895| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 515 [Total 11176]| Ratings 1| Comments 505| Invitations 0|Offline
S
1
L
L
Points 514 [Total 5078]| Ratings 0| Comments 514| Invitations 0|Offline
S
Points 360 [Total 360]| Ratings 2| Comments 310| Invitations 3|Offline
S
Points 357 [Total 560]| Ratings 1| Comments 347| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.