Results 141 to 150 of about 5,648 (259)

Bed‐level tools for monitoring erosion and accretion patterns: Flume validation and field testing

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Monitoring short‐term changes in surface sediment elevation is fundamental to understanding erosion, transport, and deposition dynamics in shallow coastal environments. However, commonly used field approaches, such as horizontal markers, sediment erosion tables, subsurface sediment plates, or erosion pins, are not always cross‐validated under ...
Lucía Rodríguez‐Arias   +6 more
wiley   +1 more source

On Compressible Fluid Flows of Forchheimer‐Type in Rotating Heterogeneous Porous Media

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We study the dynamics of compressible fluids in rotating heterogeneous porous media. The fluid flow is of Forchheimer‐type and is subject to a mixed mass and volumetric flux boundary condition. The governing equations are reduced to a nonlinear partial differential equation for the pseudo‐pressure.
Emine Celik, Luan Hoang, Thinh Kieu
wiley   +1 more source

L'embryogenèse somatique : une méthode de multiplication végétative du pin maritime pour demain ?

open access: yes, 2013
FCBA et l'INRA ont engagé des recherches il y a maintenant près de 20 ans pour développer une méthode de multiplication végétative performante du pin maritime.
Durandeau, Karine, K.   +28 more
core  

Effect of population reinforcement method, site, and plant characteristics on early establishment of the rare endemic plant species Minuartia smejkalii

open access: yesNordic Journal of Botany, EarlyView.
Many habitat‐specialist plant species have been endangered by fragmentation or destruction of their habitats. Minuartia smejkalii is a serpentinophyte endemic to the Czech Republic. It is highly threatened by recent habitat destruction and fragmentation, calling for effective conservation measures.
Alrun Siebenkäs   +3 more
wiley   +1 more source

Structure et dynamique de la diversité d'une plante cultivée à multiplication végétative : le cas des ignames au Bénin (Dioscorea sp.)

open access: yes, 2005
We studied how farmers' practices contribute to the dynamics and the structure of the diversity of a vegetatively propagated crop, yam (Dioscorea sp.) in Benin. First, we showed the diploidy of the studied species (D. rotundata, D.
Scarcelli, Nora, Scarcelli, N.
core  

Alpine flora of Kashmir Himalaya: floristic assessment, life history traits and threat status

open access: yesNordic Journal of Botany, EarlyView.
Alpine ecosystems in the Himalaya are considered to be at a higher risk to anthropogenic global change drivers. The Kashmir Himalaya, located in the north‐western side of the Himalayan biodiversity hotspot, harbors a diverse alpine flora, which remains systematically little investigated.
Bilal A. Rasray   +5 more
wiley   +1 more source

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