Abstract
By artificial imiataion of pine needle picking,and really harm of larva putting,on the basis of artificial imitation of pine needle picking,we-found the relationship between the volume of pine needle losing and height,chest height diameter and volume growth of pine tree.By F,q-test,we set the regression linear equation of chest height diameter(X) and pine needle volume(Y)as Ye= 2 987.91 X-11 245.7,with input-output analysis method and economic threshold method,we set the control index of first control index of wirter generation as Y=5.0722X-19.09.
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Claims 3
Claim · model-written summary
Pine needle loss related to height, chest height diameter and tree volume growth.
- Organ / stage
- pine needlee0
- Interactor
- Dendrolimus houi
Dendrolimus houit0peste0 - Outcome
- height,chest height diameter and volume growthe0
PinusNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the relationship between the volume of pine needle losing and height,chest height diameter and volume growth of pine tree”
t0“Dendrolimus houi”
Claim · model-written summary
The estimated relation of chest height diameter to pine needle volume was Ye= 2 987.91 X-11 245.7.
- Interactor
- Dendrolimus houiDendrolimus houit0peste0
- Outcome
- pine needle volumee0
- Value
- Ye= 2 987.91 X-11 245.7e0
- Comparator
- chest height diameter(X)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we set the regression linear equation of chest height diameter(X) and pine needle volume(Y)as Ye= 2 987.91 X-11 245.7”
t0“Dendrolimus houi”
e1“pine tree”
Claim · model-written summary
The winter generation control index was Y=5.0722X-19.09.
- Interactor
- Dendrolimus houiDendrolimus houit0peste0
- Outcome
- control index of first control index of wirter generatione0
- Value
- Y=5.0722X-19.09e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we set the control index of first control index of wirter generation as Y=5.0722X-19.09.”
t0“Dendrolimus houi”
e1“pine tree”