STANDS DENSTIY INDEX OF Eucalyptus camaldulensis Dehn. IN THE IRRIGATED PLANTATION OF NINEVAH
Nonlinear mathematical models were used to develop regression equation by relating the mean diameter square as a dependent variable and number of trees per hectare as the independent variable. As a result the nonlinear regression equation screened was N=EXP (7.02906-0.03638 Dq) The statistical char...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
College of Agriculture
2011-03-01
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| Series: | Mesopotamia Journal of Agriculture |
| Online Access: | https://magrj.mosuljournals.com/article_28078_e420f4c6b4e6a06dceb249a13c417de6.pdf |
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| Summary: | Nonlinear mathematical models were used to develop regression equation by relating the mean diameter square as a dependent variable and number of trees per hectare as the independent variable. As a result the nonlinear regression equation screened was
N=EXP (7.02906-0.03638 Dq)
The statistical characteristics of the nonlinear equations were:
R2=0.93 S.E=0.1099
The following equation could be used to find out the stand density index (S.D.I).
Log S.D.I=log N-0.005744 (DK-Dq)
When the number of trees per hectare, mean diameter square, mean diameter and age, were known. |
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| ISSN: | 1815-316X 2224-9796 |