Using remote sensing images for stratification of the cerrado in forest inventories
DOI:
https://doi.org/10.4336/2014.pfb.34.80.742Keywords:
Systematic sampling, Tratified Random Sampling, Visual image interpretation, Remote SensingAbstract
Remote sensing imagery can be a very useful auxiliary tool for native forests inventory. Thus, the objective of this study was to evaluate the stratification of a cerrado (Brazilian savanna) patch based on visual image interpretation techniques as well as to compare the errors from two sampling designs, the Stratified Random Sampling (SRS) and the Systematic Sampling (SS).The study area corresponds to a cerrado sensu stricto patch located in the municipality of Papagaios, Minas Gerais, Brazil. The cerrado wood volumes were obtained from a forest inventory field campaign where 32 plots were measured systematically. The study area was stratified based on a visual interpretation of a Landsat 5 TM image, and the strata formed were: "Strata I", "Strata II", "Strata III", water and riparian forests. There was a reduction of 43% on the inventory errors using the SS estimators compared to the inventory errors using the SRS estimators. We concluded that the stratification based on image interpretation techniques was efficient since there was a reduction on the cerrado inventory errors.Downloads
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2014 Sérgio Teixeira da Silva, José Marcio de Mello, Fausto Weimar Acerbi Junior, Aliny Aparecida dos Reis, Marcel Regis Raimundo, Iasmim Louriene Gouveia Silva, José Roberto Soares Scolforo
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The BRAZILIAN JOURNAL OF FORESTRY RESEARCH reserves the right to correct grammar, improve clarity, and impose PFB standard although respecting the author's style.
Final proof version will be sent to the correspondence author.
Published papers will become property of the BRAZILIAN JOURNAL OF FORESTRY RESEARCH.
Published papers may be used by the authors, without previous PFB authorization, allowed when source is cited.
Any mention of trademarks or methods do not imply in its recommended by the Editorial Committee.
The authors are the exclusive responsible for opinions and concepts developed in the manuscript.