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Publikasjoner

NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.

2006

Sammendrag

The article investigates innovation processes in the field of recreational services of forests. It takes a close look on innovation cases from five European countries with different institutional backgrounds in terms of forest ownership and access rights to forest land. The analysis first of all shows that forest related recreation services are developed in different institutional conditions and on public as well as private land. Financing is provided from public and private sources. Ideas may come from within and outside the forestry sector, however, impulses from outside seems to be of primary importance. In sum it can be said that both public and private spheres have important roles in providing natural, financial and human resources and usually a network of public and private actors are involved in innovation processes. Of particular importance are cross-sectoral interactions between forestry and tourism. A greater institutional support is needed for the development of forest related recreation services as the field is at the beginning of its development. Support should focus on providing ideas and financial resources for product development and on facilitating cross-sectoral interaction between forestry and tourism actors. A particular need is seen to develop models for durable interaction between land-owners and tourism operators on a regional scale.

Sammendrag

Working Ring Test (WRT) was organised in the framework of the EU Regulation (EC) No 2152/2003 (`Forest Focus`) and of the UN/ECE Program `ICP Forests` in order to evaluate the overall performance of the laboratories monitoring atmospheric deposition and soil solution in European Forests, and to verify the improvement in the analytical quality as the results of the QA/QC work carried out in the laboratories which participated to a previous WRT. Seven natural samples of atmospheric deposition and soil solutions and 5 synthetic solutions were distributed to 52 laboratories, which analysed them using their routine method for the following variables: pH, conductivity, calcium, magnesium, sodium, potassium, ammonium, sulphate, nitrate, chloride, total alkalinity, phosphate, total dissolved nitrogen, dissolved organic carbon, aluminium, copper, iron, manganese, zinc, total phosphorus, total sulphur and silica. For each variable, a Data Quality Objective was defined, based on the results of the previous WRT, the comparison with the DQOs of other international networks, and the importance of the variable in deposition and soil solution monitoring. It resulted that 38% of the results do not meet the DQO, showing for which variables and in which laboratories improvement in analytical performance is needed. The results of the exercise clearly show that the use of data check procedures, as those described in the ICP Forests manual for sampling and analysis of atmospheric deposition, would make it possible to detect the presence of outliers or results not accurate, and would greatly improve the overall performance of the laboratories. Some analytical methods were found not suitable to the samples used in this WRT, nor to atmospheric deposition samples in European forests, and they include outdated methods, such as turbidimetry or nephelometry for the determination of sulphate, silver nitrate titration and ion selective electrode for chloride, Kjeldahl digestion for the determination of ammonium and organic nitrogen, and colorimetric titrations for alkalinity. A detailed discussion of the analyses of total dissolved nitrogen, dissolved organic carbon and total alkalinity is also provided, as they were the variables for which more analytical difficulty arose. Finally, a comparison between the results of this WRT and those of the previous exercise showed that the analytical performance of the laboratories participating in both WRTs improved as a consequence of the adoption of QA/QC procedures.