Determining the optimal length of transects for estimating coarse woody debris
The objective of this paper was to evaluate different transect lengths for determination of coarse woody debris on the ground. The data came from 10-meter-long transects, measured during the National Forest Inventory methodology test in the Amazon, Cerrado and Caatinga, and the forest inventory in Santa Catarina State, representing Araucaria Forest and Deciduous Forest. The comparison among the coefficient of variation obtained for transects from 10 to 150 m long indicates that the greatest changes in this estimator occur in the interval from 10 up to 50 m, stabilizing from this length. The adoption of 10 m transects in the typologies evaluated is recommended, because with this length there is a 35% reduction in total walking distance in relation to the 20 m transects to obtain the same sampling error.
| Main Authors: | , , , , , , |
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| Format: | Digital revista |
| Language: | por |
| Published: |
Embrapa Florestas
2013
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| Online Access: | https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/391 |
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