Results 21 to 30 of about 33,604 (218)

Production et valeur nutritive de Medicago arborea en intercalaire dans un système fourrager pluvial en zone semi-aride méditerranéenne

open access: yesAfrican and Mediterranean Agricultural Journal - Al Awamia, 2022
Dans les zones arides, la production fourragère est limitée à cause des sécheresses fréquentes. Combler le déficit fourrager dépend de la diversification des ressources alimentaires. Medicago arborea, serait une alternative.
M. El Koudrim, A. Chriyaa, S. Hilali
doaj   +1 more source

Lokale Akzeptanz von Energiemixen

open access: yesTechnikfolgenabschätzung – Theorie und Praxis, 2016
Der Beitrag thematisiert lokale Aspekte der Bewertung von Energiemixen erneuerbarer Energien (Solar- und Windenergie, Biomasse). Die Ergebnisse einer szenariengeleiteten Online-Fokusgruppenbefragung zeigen, dass dominant ausgeprägte Energieformen des ...
Agnes Grabietz   +2 more
doaj   +1 more source

Effets de la biomasse et de la quantité d’herbe offerte sur l’ingestion, les performances laitières et le comportement alimentaire des vaches laitières conduites en pâturage tournant : étude par métaanalyse

open access: yesINRAE Productions Animales, 2016
En pâturage tournant, la gestion du pâturage par les éleveurs détermine en partie les performances des vaches laitières et la valorisation de l’herbe.
R. DELAGARDE, L.A. PÉREZ-PRIETO
doaj   +1 more source

Composition and Chemical Variability of Corsican Cone Oil

open access: yesNatural Product Communications, 2014
The composition of the essential oil isolated from cones of Pinus halepensis grown in Corsica has been investigated by a combination of chromatographic (CC, GC) and spectroscopic (MS, 13 C NMR) techniques.
Anne-Marie Nam   +3 more
doaj   +1 more source

New Metabolites Isolated from a Laurencia obtusa Population Collected in Corsica

open access: yesMolecules, 2018
The chemical investigation of an ethyl acetate extract (EtOAc) obtained from Laurencia obtusa, collected in Corsica, allowed for the identification of three new compounds (1, 2, and 4) and six known compounds.
Hélène Esselin   +3 more
doaj   +1 more source

Biomass estimation of rangelands in the Eastern Highlands by remote sensing indices

open access: yesAfrican and Mediterranean Agricultural Journal - Al Awamia, 2022
The rangelands of the High plateau of eastern Morocco constitute an important supplement to the feeding of sheep and goats. Estimating phytomass production from these rangelands during the growing season is useful for managers of pastoral areas.
H. Mahyou
doaj   +1 more source

Patterns of wild meat and other protein consumption in the periphery of Salonga National Park, Democratic Republic of the Congo

open access: yesPeople and Nature, EarlyView.
Abstract In Central Africa, human activities are severely impacting terrestrial and aquatic wildlife, threatening the food security of millions of people. Accordingly, sustainable use of wildlife is crucial for the nutrition and livelihoods of many rural communities in the region.
Zolo Admettons   +9 more
wiley   +1 more source

Biomass Resources

open access: yes, 2019
Biomass is a renewable resource but it is also limited since finite resources, such as land, water, and nutrients are required for its production. Due to the growing interest on bioeconomy by which the biological resources are sustainably produced and converted into value added products (e.g., food, feed, bio-based products, and bioenergy), a knowledge
Sánchez López, Javier   +3 more
openaire   +2 more sources

Una pianta che non deve stare lì. Giustizia ambientale e autoctonia nella Sardegna meridionale

open access: yesAntropologia, 2021
Ai confini di un Parco Naturale protetto nella Sardegna meridionale, in un’area recentemente interessata da incendi e alluvioni, l’intensa attività di taglio di eucalitteti per la locale centrale a biomasse sta comportando la perdita di una parte ...
Greca N. Meloni
doaj   +1 more source

Entropie im Erdsystem: Wie das Klimasystem arbeitet

open access: yesPhysik in unserer Zeit, EarlyView.
Bei den Energieumwandlungen der Erde ist die Entropie immer mit dabei. Wie ein Kompass bestimmt sie dabei die Richtung, sie setzt Leistungsgrenzen, die Klima formen und erneuerbare Energien begrenzen. Zusammenfassung Entropie setzt Grenzen, wenn Energie umgewandelt und Arbeit geleistet wird – so wie bei Wärmekraftmaschinen und Kraftwerken.
Axel Kleidon
wiley   +1 more source

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