Data/hora: 22/06/2024 00:47:09

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 14/04/1999
Data da última atualização: | 14/04/1999
Autoria: | GILLEN, R. L.; SMITH, E. L.
Afiliação: | Assistant professor, Department of Agronomy, Oklahoma State University, Stillwater and associate professor, School of Renewable Natural Resources, University of arizona, Tucson.
Título: | Evaluation of the dry-weight-rank method for determining species composition in tallgrass prairie.
Ano de publicação: | 1986
Fonte/Imprenta: | Journal of Range Management, v.39, n.3, p.283-285, May 1986.
Idioma: | Inglês
Conteúdo: | The dry-weight-rank (DWR) method for determining species composition of tallgrass prairie vegetation was compared to hand clipping. Species composition estimates for the 2 methods were similar in 3 of 4 trials when true ranking and previously published multipliers were used. Weighting the DWR estimates by plot total weight did not consistently improve the accuracy of the method. Observer errors reduced the accuracy of DWR, emphasizing the need for observer training. DWR estimates were generally less precise than hand clipped estimates for a given sample size but the speed of DWR would allow more samples to be taken resulting in more precise estimates in practice.
Palavras-Chave: | Composicao; Composition; Dry-weight-rank; Tallgrass prairie.
Thesagro: | Grama; Vegetação.
Thesaurus Nal: | vegetation.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (38179-1) - ADC - SP - -- - SP4616 -  - 4616 - DIS