Growth Results - Revision history

Jonare at 11:31, 31 May 2024

2024-05-31T11:31:24Z

2024-05-31T11:30:56Z

2021-11-19T05:23:22Z

2016-03-08T10:50:45Z

How growth is calcualated

2016-03-08T10:46:33Z

2016-03-07T10:13:42Z

MAI and CAI

2016-03-07T10:13:16Z

2016-03-02T14:46:09Z

2016-03-02T14:18:19Z

New page

[[ResultCategoryDescription::This result group contains volume growth results]].

[[Category:Result Variables]]

@@ Line 17: / Line 17: @@
 |}
-==How growth is calcualated==
+==How growth is calculated==
 [[File:Growth.png|450px]]

@@ Line 23: / Line 23: @@
 The current annual '''net''' volume growth is the same as the volume change from one time (before harvest) to the next (before harvest). Mortilty is not included. CAI net is calculated as:<br>
-<math>G_{t+a} = \displaystyle \frac{V_{t+a}- V_a + H_t}{a} </math>
+<math>G_{t+a} = \displaystyle \frac{V_{t+a}- V_t + H_t}{a} </math>
 where <br>

@@ Line 21: / Line 21: @@
 ====CAI net====
-The current annual '''net''' volume growth is the same as the volume change from one time (after harvest) to the next (before harvest). Mortilty is not included. CAI net is calculated as:<br>
+The current annual '''net''' volume growth is the same as the volume change from one time (before harvest) to the next (before harvest). Mortilty is not included. CAI net is calculated as:<br>
 <math>G_{t+a} = \displaystyle \frac{V_{t+a}- V_a + H_t}{a} </math>

@@ Line 18: / Line 18: @@
 ==How growth is calcualated==
 ====CAI net====
 The current annual '''net''' volume growth is the same as the volume change from one time (after harvest) to the next (before harvest). Mortilty is not included. CAI net is calculated as:<br>
@@ Line 41: / Line 43: @@
 This is the same as the volume change from one time (after harvest) to the next (before harvest), plus mortality.
+====MAI====
-[[File:Growth.png|450px]]
+MAI is calculated similarly to CAI but the first time is set to year 0 or, if a final felling has been simulated, the year for the last final felling. The harvest and mortality variables in the equations are replaced with sums over the harvesting and mortality that occurs between the time points. The result is the same as taking the average of CAI.
 [[Category:Result Variables]]

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 ==Gross vs. net growth==
 Gross growth includes mortality while net growth only includes survived trees.
 ==MAI and CAI==
 Reported for all species and per species.
@@ Line 17: / Line 16: @@
+|
 |}
 [[Category:Result Variables]]

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 | align="left" style="background:#f0f0f0;width: 50%;"|'''Description'''
 |-
-| CAI ... || [[Dictionary:m3sk|m<sup>3</sup>sk/ha,yr|| Current annual increment (from the beginning or midpoint of the previous period)
+| CAI ... || [[Dictionary:m3sk|m<sup>3</sup>sk]]/ha,yr|| Current annual increment (from the beginning or midpoint of the previous period)
 |-
-| MAI ... || [[Dictionary:m3sk|m<sup>3</sup>sk/ha,yr|| Mean annual increment since year 0 or from the time for final felling of the previous rotation. '''Reset after final felling'''.
+| MAI ... || [[Dictionary:m3sk|m<sup>3</sup>sk]]/ha,yr|| Mean annual increment since year 0 or from the time for final felling of the previous rotation. '''Reset after final felling'''.
 |-
+|

← Older revision		Revision as of 10:13, 7 March 2016
Line 1:		Line 1:
	This result group contains: [[ResultCategoryDescription::Volume growth results]].		This result group contains: [[ResultCategoryDescription::Volume growth results]].
		+
		+	==Gross vs. net growth==
		+	Gross growth includes mortality while net growth only includes survived trees.
		+
		+	==MAI and CAI==
		+	Reported for all species and per species.
		+	{\| {{table}}
		+	\| align="left" style="background:#f0f0f0;width: 30%;"\|'''Variable name'''
		+	\| align="left" style="background:#f0f0f0;width: 20%;"\|'''Unit'''
		+	\| align="left" style="background:#f0f0f0;width: 50%;"\|'''Description'''
		+	\|-
		+	\| CAI ... \|\| [[Dictionary:m3sk\|m<sup>3</sup>sk/ha,yr\|\| Current annual increment (from the beginning or midpoint of the previous period)
		+	\|-
		+	\| MAI ... \|\| [[Dictionary:m3sk\|m<sup>3</sup>sk/ha,yr\|\| Mean annual increment since year 0 or from the time for final felling of the previous rotation. '''Reset after final felling'''.
		+	\|-
		+	\|
		+	\|}
		+


	[[Category:Result Variables]]		[[Category:Result Variables]]

← Older revision		Revision as of 14:46, 2 March 2016
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−	[[ResultCategoryDescription::~~This result group contains volume~~ growth results]].	+	This result group contains: [[ResultCategoryDescription::Volume growth results]].


	[[Category:Result Variables]]		[[Category:Result Variables]]