| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agricultura Digital. |
|
Data corrente: |
16/10/1997 |
|
Data da última atualização: |
11/01/2012 |
|
Autoria: |
NAMKEN, J. C.; STUTH, J. W. |
|
Título: |
GIS and modeling linked to predict grazing distribution pattern by cattle. |
|
Ano de publicação: |
1993 |
|
Fonte/Imprenta: |
In: HEATWOLE, C. D. (Ed.). Application of advanced information technologies: effective management of natural resources. St. Joseph, MI: ASAE, 1993. |
|
Páginas: |
p. 106-110. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Extensive landscapes of complex configurations, livestock behaviors, and limited capital resources complicate the optimal location of range improvements. A cost effective tool for use by natural resource managers in locating additional water sites and land treatments is presented. Spatial characteristics and attributes of a landscape were entered into a geographical information system (ARCINFO) to create a data base. A grazing pressure index was modeled using an algorithm which sequentially adjusts grazing capacity of response units for percent lost to brush density, slope, and distance from water respectively. A bio-economic analysis system, using the modeled grazing pressure, was conducted to evaluate potential water sites based first, on potential grazing land harvest and second, by comparing the annualized net present values of two different water facility developments. The system was then used to determine optimal areas of a landscape for improved forage development considering costs of treatment, forage response to treatment, and different capital expenditures. |
|
Palavras-Chave: |
Modelagem; Modeling; Sistema de suporte à decisão. |
|
Thesaurus Nal: |
Decision support systems; Geographic information systems. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
LEADER 01771naa a2200205 a 4500
001 1004999
005 2012-01-11
008 1993 bl uuuu u00u1 u #d
100 1 $aNAMKEN, J. C.
245 $aGIS and modeling linked to predict grazing distribution pattern by cattle.
260 $c1993
300 $ap. 106-110.
520 $aExtensive landscapes of complex configurations, livestock behaviors, and limited capital resources complicate the optimal location of range improvements. A cost effective tool for use by natural resource managers in locating additional water sites and land treatments is presented. Spatial characteristics and attributes of a landscape were entered into a geographical information system (ARCINFO) to create a data base. A grazing pressure index was modeled using an algorithm which sequentially adjusts grazing capacity of response units for percent lost to brush density, slope, and distance from water respectively. A bio-economic analysis system, using the modeled grazing pressure, was conducted to evaluate potential water sites based first, on potential grazing land harvest and second, by comparing the annualized net present values of two different water facility developments. The system was then used to determine optimal areas of a landscape for improved forage development considering costs of treatment, forage response to treatment, and different capital expenditures.
650 $aDecision support systems
650 $aGeographic information systems
653 $aModelagem
653 $aModeling
653 $aSistema de suporte à decisão
700 1 $aSTUTH, J. W.
773 $tIn: HEATWOLE, C. D. (Ed.). Application of advanced information technologies: effective management of natural resources. St. Joseph, MI: ASAE, 1993.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 9 | |
| 7. |  | SOUZA NETO, J. de; CONNER, J. R.; STUTH, J. W.; HAMILTON, W. T.; RICHARDSON, J. W. Management strategies and climate impact change on rangelands. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 33, n. 9, p. 1533-41, set. 1998. Título em português: Impacto de mudanças de estratégias de manejo e do clima em pastagem nativa.| Biblioteca(s): Embrapa Unidades Centrais. |
|    |
| Registros recuperados : 9 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
