Descubre y comparte nuestro conocimiento público

Se han encontrado 150 recursos

Resultados de búsqueda

Manuals, Guides and Toolkits 2018

Autor: United Nations Environment Programme
Enlace original: https://wedocs.unep.org//handle/20.500.11822/27634

Programa del Medio ambiente
Enlace permanente

United Nations Environment Programme ,  [Procédure pour le prélèvement d'air ambiant avec préleveurs actifs a haut debit (HVS), Procedimiento pare el muestreo de aire usando captadores activos (CAV)] ,  [Procedure for Air Monitoring using Active Air Samplers (HVS)] ,  Procedure for Air Monitoring using Active Air Samplers (HVS)
Manuals, Guides and Toolkits 1989

Autor: United Nations Environment Programme Russian Federation Food and Agriculture Organization of the United Nations
Enlace original: https://wedocs.unep.org//handle/20.500.11822/30319

Programa del Medio ambiente
Enlace permanente

United Nations Environment Programme ,  Russian Federation ,  Food and Agriculture Organization of the United Nations ,  [Sampling of Agricultural Products and their Analysis for Aflatoxin Determination] ,  Sampling of Agricultural Products and their Analysis for Aflatoxin Determination
Reports and Books 1977

Autor: Food and Agriculture Organization of the United Nations United Nations Environment Programme
Enlace original: https://wedocs.unep.org//handle/20.500.11822/30900

Programa del Medio ambiente
Enlace permanente

Food and Agriculture Organization of the United Nations ,  United Nations Environment Programme ,  [Manuel des Méthodes de la Recherche sur l'Environnement Aquatique - Troisième Partie: Echantillorinage et Analyse du Matériel Biologique - FAO Document technique sur les pêches No. 158] ,  Manuel des Méthodes de la Recherche sur l'Environnement Aquatique - Troisième Partie: Echantillorinage et Analyse du Matériel Biologique - FAO Document technique sur les pêches No. 158
Journal Article 2012

Autor: Kissa, D.O. Sheil, D.

Good density estimates for low abundance tree species are costly to achieve especially in rugged or disturbed forest landscapes. More efficient methods would be of considerable value to managers and conservationists. Here we assess a method that has been neglected in this context. We examine and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/20926

Investigación en Agricultura
Enlace permanente
Kissa, D.O. ,  Sheil, D. ,  [Visual detection based distance sampling offers efficient density estimation for distinctive low abundance tropical forest tree species in complex terrain] ,  Visual detection based distance sampling offers efficient density estimation for distinctive low abundance tropical forest tree species in complex terrain
Book 1981

Autor: Jolly, G.M.

Reviews procedures for obtaining reliable information on animal populations, other ecological features and land use generally from low-flying aircraft by direct observation or conventional photography, with reference to types of sampling unit, and the relative merits of unstratified systematic an...

Enlace original: https://cgspace.cgiar.org/handle/10568/4214

Investigación en Agricultura
Enlace permanente
Jolly, G.M. ,  [A review of the sampling methods used in aerial survey] ,  A review of the sampling methods used in aerial survey
Journal Article 2006

Autor: Ogutu, J. Bhola, N. Piepho, Hans-Peter Reid, Robin S.

Effective management and conservation of wildlife populations require reliable estimates of population size, which can be difficult and costly to obtain. We evaluated how precision in estimates of herd size and abundance varies with sample size and strip width using two field surveys and bootstra...

Enlace original: https://cgspace.cgiar.org/handle/10568/33026

Investigación en Agricultura
Enlace permanente
Ogutu, J. ,  Bhola, N. ,  Piepho, Hans-Peter ,  Reid, Robin S. ,  [Efficiency of strip- and line-transect surveys of African savanna mammals] ,  Efficiency of strip- and line-transect surveys of African savanna mammals
Journal Article 2016-10

Autor: Okiro, L.A. Nyanjom, S.G. Parker, M.

Bacterial wilt caused by Ralstonia solanacearum is considered among the most damaging diseases of potato in Sub-Saharan Africa. In Kenya, majority of farmers visually select and save seed from harvested potato tubers and reuse the same tubers for several seasons. Latently infected seed tubers whi...

Enlace original: https://cgspace.cgiar.org/handle/10568/81125

Investigación en Agricultura
Enlace permanente

Okiro, L.A. ,  Nyanjom, S.G. ,  Parker, M. ,  [Coring method of sampling potato tubers to detect ralstonia solanacearum.] ,  Coring method of sampling potato tubers to detect ralstonia solanacearum.

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso
Marcar todos
Limpiar todo