Results 71 to 80 of about 86,149 (213)
The essential oil (EO) of M. aquatica L. growing wild in Corsica was isolated by dry vapor distillation and submitted to combined analysis by column chromatography over silica gel, GC(RI), GC-MS and 13 C NMR spectroscopy. The composition was dominated by
Sylvain Sutour +3 more
doaj +1 more source
Estimation in situ de la respiration des boues activées par application d'un bilan sur l'oxygène [PDF]
Dans les stations d'épuration à boues activées il est essentiel de maintenir une biomasse de bonne qualité ceci afin que l'eau soit traitée correctement. Un des paramètres caractéristiques de l'activité de la biomasse est la respiration spécifique (c'est
Audic, J. M., Chatellier, P.
core +1 more source
Abstract In systems where low temperatures limit plant productivity, facilitative effects of surrounding vegetation on juvenile plants may outweigh effects of competition for resources. This facilitation could occur through temperature buffering but also via increased availability of root mutualists such as mycorrhizal fungi.
Grace Rose Gutiérrez +2 more
wiley +1 more source
The composition of 16 samples of leaf oil from Corsican Juniperus thurifera was investigated by integrated techniques, GC, GC-MS and 13 C NMR. K-means partitioning and PCA analysis of the data allowed the definition of a main group (14 samples) dominated
Josephine Ottavioli +2 more
doaj +1 more source
Vermeidung von Verbrennung senkt Primärenergiebedarf deutlich: Strom statt Wärme
In der Energiewende geht es auch um den Umstieg auf strombasierte Technologien wie Wärmepumpen und Elektromobilität. Sie vermeiden Wärme als Zwischenschritt und sind dadurch wesentlich effizienter. Dies kann den Bedarf an Primärenergie in Zukunft deutlich senken, der dann vollständig durch den Ausbau von erneuerbaren Energien gedeckt werden kann. Warum
Axel Kleidon, Harald Lesch
wiley +1 more source
Allelopathic effects of Rumex obtusifolius leaf extracts against native grassland species [PDF]
In perennial grasslands R. obtusifolius (broad-leaved dock) is often surrounded by certain plant species. Thus, it is hypothesized for the current study that Rumex can affect their neighbouring plant species by allelopathic interactions.
Zaller, Johann G.
core
Spatial context allows the evolution of the control of nitrification by plants
Using a theoretical approach, we show that assuming that the effects of the control of nitrification are spatially restricted to the rhizosphere, the control of nitrification is likely to be selected in perennial plants and ecosystems in which nitrate losses are greater than ammonium losses. The selected strategy optimizes biomass production.
Alice Nadia Ardichvili +4 more
wiley +1 more source
Economic and CO2 mitigation impacts of promoting biomass heating systems: an input-output study for Vorarlberg, Austria [PDF]
This paper reports on an empirical investigation about the economic and CO2 mitigation impacts of bioenergy promotion in the Austrian federal province of Vorarlberg.
Martin Koller, Reinhard Madlener
core
Influence of notillage on carbon sequestration and erosion in Brazil [PDF]
Les sols constituent le plus gros réservoir superficiel de C (hors les roches carbonatées), environ 1500 Gt C, ce qui équivaut à presque trois fois la quantité stockée dans la biomasse terrestre, et deux fois celle de l'atmosphère.
Bernoux, Martial +8 more
core
Composition and Chemical Variability of Needle and Berry Oils from Corsican var.
Juniperus communis L. var. communis is widespread in European countries. In Corsica a very small population grows wild in the North-Eastern side of the island. The chemical compositions of nine needle oil samples and three berry oil samples from Corsican
Joséphine Ottavioli +3 more
doaj +1 more source

