Data/hora: 10/06/2024 00:44:18

Provedor de dados: | 190
País: | Brazil

Título:

Kriging potential of digital elevation model for forest harvesting planning

Potencial de krigagem em modelos digitais de elevação para o planejamento da colheita florestal

Autores: | Ferreira, Francisco de Assis Costa; Leite, Elton da Silva; Freitas, Luis Carlos de; Virgens, Aline Pereira das.
Data: | 2017-12-29
Ano: | 2017
Palavras-chave: | Remote sensing; Cutting; Extraction Recursos florestais Sensoriamento remoto; Corte; Extração.
Resumo: | The objective of this study was to evaluate kriging in SRTM and ASTER digital elevation models (DEMs) to assist in the planning of forest harvesting. The following DEMs were tested: SRTM with 30 m and with 90 m spatial resolution (SR); ASTER 30 m SR; krigged SRTM 30 m and 90 m; krigged ASTER 30 m; and standard MDE, obtained from a planialtimetric map. Using DEMs declivity maps were generated according to restrictions of harvesting machines in forest. DEMs were evaluated using descriptive statistical analysis, and qualitative and quantitative analysis. DEMs assessed presented significant altitude spatial dependence. The differences of root-mean-square error between DEMs from original SRTM and ASTER images showed little difference from krigged DEMs. The results of the quantitative and qualitative analysis showed improvement by means of kriging in SRTM DEMs with 30 m and 90 m of spatial resolution. However, DEM ASTER 30 m did not present the same behavior, showing better results in its original version. The krigged DEM SRTM 30 m presented more potential to be used in the forest harvest planning, when DEMs in larger scales are not available.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1492

10.4336/2017.pfb.37.92.1492

Editor: | Embrapa Florestas
Relação: | http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1492/615
Formato: | application/pdf

Fonte:

Pesquisa Florestal Brasileira; v. 37, n. 92 (2017): out./dez.; 579-586

Brazilian Journal of Forestry Research; v. 37, n. 92 (2017): out./dez.; 579-586

1983-2605

1809-3647

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