Bibliographic Details
| Title: |
Feasibility of estimating total stem volume and aboveground biomass from measurement on the largest trees in even-aged pure stands. |
| Authors: |
Osawa, A., Abaimov, A. P., Kajimoto, T. |
| Source: |
Canadian Journal of Forest Research. Nov2001, Vol. 31 Issue 11, p2042. 7p. |
| Subject Terms: |
*Trees, *Woody plants, *Forests & forestry, *Botany, Botany experiments |
| Abstract: |
Presents a study of the feasibility of estimating the total stem volume and aboveground biomass from data of only the largest trees in even-aged pure stands. Method of fitting a size-distribution function to data that exclude information of smaller individuals in a stand and compared the predicted stem volume and aboveground biomass with those calculated with data of all living trees in the stand; Paired t test that showed the predicted values of the total stem volume and aboveground biomass were not different (p = 0.05) from those observed even if only the largest 10% of the trees were used for estimation with the ?3/2 power distribution; Results that were similar with the beta-type distribution; Data from at least the largest 30% of the trees in the stand that must be included; Absolute values of the relative error of the predicted total stem volume or aboveground biomass that were generally in the range 10?20%, indicating that the present method is accurate enough to be used for calculation of these variables; Systematic bias in the predictions of the total stem volume and aboveground biomass of a stand that exists; Possible causes of the indicated biases and potential ways for improvement of the predictions that were discussed. |
| Database: |
GreenFILE |
