The Journal "Agriculture and Forestry"
Časopis "Poljoprivreda i šumarstvo"
- Since 1955 -
Year 2013, Volume 59 Issue 4
| Year : | 2013 |
| Volume : | 59 |
| Issue : | 4 |
| Authors : | Damjan PANTIC, Nenad STOJKOVIC, Dragan BOROTA, Bojan TUBIC and Marko MARINKOVIC |
| Title : | POSSIBILITIES OF APPLYING SAMPLING MEASUREMENT IN THE INVENTORY OF STRUCTURALLY HETEROGENEOUS STANDS |
| Abstract : | In structurally heterogeneous forests of Serbia, the information needed for management is collected by total measurement. Although the most accurate, the total measurement has some weaknesses as well, which are demonstrated by distinctly low cost-effectiveness and inability to define error which exists, like with any other measurement. Having in mind these observations and substantial areal representation of heterogeneous stand forms in the growing stock of Serbia, substituting total measurement with sampling measurement is an imperative of forest inventory in small areas. Consequently, researches of the most favorable shape of sample plots were conducted (circle with constant radius, concentric circles or angle-count sampling), their sizes, distribution and measurement intensity. The obtained results were evaluated through a prism of accuracy and cost-effectiveness of information in specific conditions. The scope of statistical and empirical errors relating to the number of trees and volume, at the measurement intensity of 10-15%, as well as clearly higher cost-effectiveness of sampling measurement, is such that it indicates a possibility to substitute total measurement in conditions of structurally heterogeneous stands. However, high deviations in distribution of the number of trees and volumes, particularly in the highest diameter degrees, and all the problems in planning, silviculture and exploitation of forests resulting from such deviations, eliminate this possibility. In this respect, basic hypotheses of these researches have not been confirmed, except the one relating to higher cost-effectiveness of sampling measurement compared to total measurement. |
| For citation : | Damjan PANTIC, Nenad STOJKOVIC, Dragan BOROTA, Bojan TUBIC and Marko MARINKOVIC (2013): POSSIBILITIES OF APPLYING SAMPLING MEASUREMENT IN THE INVENTORY OF STRUCTURALLY HETEROGENEOUS STANDS. Agriculture & Forestry, Vol. 59. Issue 4: 65-79, 2013, Podgorica |
| Keywords : | total measurement, sampling measurement, number of trees, volume, empirical error, statistical error |
| download paper | |