Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2015
Authors
Sergey Hayrapetyan Emilio Alvarenga Lusine Hayrapetyan S.A. Gevorgyan G.P. Pirumyan Brit SalbuAbstract
The scanning electron microscopy (SEM), x-ray fluorescence spectrometry (XRF) and inductively coupled plasma mass spectrometry (ICP-MS) methods were used for investigation of manganese dioxide (MnO2)–containing composite sorbents and their sorption properties were evaluated as well. A characterization of the sorbents was performed by SEM and XRF. Diatomite and silicagel were used as the porous carrier for the MnO2 (which provides the functionality of the sorbents). The silica component was prepared by co-precipitation of water glass with manganese dioxide. Potassium permanganate is used as a source of manganese dioxide. Deposition of MnO2 was carried on the pore surfaces of porous materials (silica, diatomite) by means of hydrogen peroxide and formaldehyde. The sorbent prepared under the previously described procedure was tested for compounds containing potassium (K+).
Abstract
No abstract has been registered
Authors
Ola Stedje HanserudAbstract
No abstract has been registered
Abstract
In boreal ecosystems, traditionally diverse agricultural landscapes were composed of a mosaics of intensively used fields (monocultures), low intensively used vegetation types such as semi-natural grasslands and forests. The landscapes are now changing to less diverse landscapes of fields and forests. Agricultural landscapes are potential suppliers of ecosystem services such as aesthetic, genetic, pollination and agricultural production. The ongoing process of landscape change will influence provision of ecosystem services but little is known about in which directions. The aim of this project is to shed light on potential outcomes of the land-use changes on ecosystem services in agricultural boreal landscapes.
Abstract
Predicting how human induced vegetation changes affect ecosystems and their biological communities is one of the most urgent tasks in ecology. In Norwegian lowlands one of the main threats to biodiversity is abandonment of low intensive land-use areas. Effects of changed land-use on vegetation are generally made by assessing the effect on the number of species as indicators of biodiversity. However, community structure changes and ecosystem processes are not necessarily well described by this biodiversity indicator only. Functional trait responses might better predict structures and processes than species richness. Therefore, studies of functional traits and biodiversity indexes of these might provide deeper insight. In addition, to predict reliable future vegetation changes, multifactorial determinants have to be considered as vegetation is not driven by one determinant only.
Abstract
No abstract has been registered
Authors
Bjørn ØklandAbstract
No abstract has been registered
Authors
May Bente BrurbergAbstract
No abstract has been registered
Authors
Vincenzina Caputo Giovanna Sacchi Rudolfo M. Jr. Nayga Ricardo ScrapaAbstract
No abstract has been registered
Authors
Vincenzina Caputo Giovanna Sacchi Rudolfo M. Jr. NaygaAbstract
No abstract has been registered