Artikkelit kirjoittajalta Jyrki Kangas
Kunnostusojitusvaihtoehtojen vesistövaikutusten asiantuntija-avusteinen arviointi ja liittäminen päätösanalyysiin.
English title: Assessing the impacts of ditch network maintenance on water ecosystems on the basis of expert knowledge and integrating the assessment into decision analysis.
Tiivistelmä |
Näytä lisätiedot
|
Artikkeli PDF-muodossa |
Tekijät
Abstract: The study applies the combined use of the Delphi technique and the analytic hierarchy process to the assessment of ditch network maintenance alternatives and their impacts on water ecosystems. The results of the assessment are utilised in multi-criteria decision support. Impacts of ditch network maintenance on water systems need to be assessed on the basis of expert knowledge, because no quantitative impact assessment models applicable in numerical decision analyses are available. Ideally, the assessment process results in a compromise between the opinions of several experts involved. If no consensus can be reached, the final results are calculated as weighted means of the opinions. For the weighting stage, the competence of the experts should be determined. The method is illustrated and tested in the light of a case study where five experts assessed five ditch network maintenance alternatives with respect to the protection of nearby water ecosystems. The case study area is located in western Finland. It is a peatland site with an old ditch network needing maintenance from the viewpoint of wood production. With the volume increment of the tree stand and the protection of water systems as the criteria, and utilising ecological expertise in the assessment of alternatives concerning the protection criterion, multi-criteria analysis recommended the 'no treatments' alternative.
Key words: AHP, Delphi, ditch network maintenance, environmental protection, forest planning
-
Kangas,
The Finnish Forest Research Institute, Kannus Research Station, P.O.Box 44, FIN-69101 Kannus, Finland
Sähköposti:
ei.tietoa@nn.oo
- Lauhanen, Sähköposti: ei.tietoa@nn.oo
Menetelmä metsäojitusvaihtoehtojen hyötyvertailuun.
English title: A method for utility comparison of forest drainage alternatives.
Avainsanat:
the Analytic Hierarchy Process;
decision analysis;
forest management planning;
multiple-use planning
Tiivistelmä |
Näytä lisätiedot
|
Artikkeli PDF-muodossa |
Tekijä
In this study, the Analytic Hierarchy Process (AHP) is applied to the planning of peatland forest drainage. The AHP is a decision analysis method which was developed for analysing complex decision situations with respect to the preferences of the decision-maker. Both quantitative and qualitative criteria can be dealt with. Due to its simplicity and flexibility the AHP is applicable to the analysis of practical decision problems. Besides using objective data, both the expertise and subjective opinion of the decision-maker can be utilized when forest drainage alternatives are evaluated.
Keywords: the Analytic Hierarchy Process, decision analysis, forest management planning, multiple-use planning
-
Kangas,
University of Joensuu, Faculty of Forestry, P.O. Box 111, SF-80101 Joensuu, Finland
Sähköposti:
ei.tietoa@nn.oo
Click this link to register to Suo - Mires and peat.
Jos olet rekisteröitynyt käyttäjä, kirjaudu sisään tallentaaksesi valitsemasi artikkelit myöhempää käyttöä varten.
Valitsemasi artikkelit
Suo - Mires & Peat
