Data/hora: 10/06/2024 16:13:35

Provedor de dados: | 190
País: | Brazil

Título:

Using remote sensing images for stratification of the cerrado in forest inventories

Uso de imagens de sensoriamento remoto para estratificação do cerrado em inventários florestais

Autores: | Silva, Sérgio Teixeira da; Mello, José Marcio de; Acerbi Junior, Fausto Weimar; Reis, Aliny Aparecida dos; Raimundo, Marcel Regis; Silva, Iasmim Louriene Gouveia; Scolforo, José Roberto Soares.
Data: | 2014-12-30
Ano: | 2014
Palavras-chave: | Systematic sampling; Tratified Random Sampling; Visual image interpretation; Remote Sensing Engenharia Florestal; Manejo e Inventário Florestal; Sensoriamento Remoto Amostragem Sistemática; Amostragem Casual Estratificada; Interpretação visual de imagens; Sensoriamento remoto.
Resumo: | 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/742

10.4336/2014.pfb.34.80.742

Editor: | Embrapa Florestas

Relação:

http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/742/398

http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/downloadSuppFile/742/592

http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/downloadSuppFile/742/593

http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/downloadSuppFile/742/594

Formato: | application/pdf

Fonte:

Brazilian Journal of Forestry Research; v. 34, n. 80 (2014): out./dez.; 337-343

Pesquisa Florestal Brasileira; v. 34, n. 80 (2014): out./dez.; 337-343

1983-2605

1809-3647

Fonte:

Direitos autorais 2014 Pesquisa Florestal Brasileira

http://creativecommons.org/licenses/by-nc-nd/4.0