Per-Ola Hedwall
PhD-candidate in forest management
My main research interests are within the field of plant ecology and focus on the relations between the forest floor vegetation and the forest structure. Changes in forest management have increased forest productivity during the last century and resulted in large scale effects on forest structure. Within my PhD-project I study the effects of intensified management of Norway spruce (Picea abies) on forest floor vegetation. Furthermore, I use data from the Swedish National Forest Inventory to analyze trends in abundances of common forest plant species and to model the relation between species abundance and forest structure. I also study interacting effects of N deposition and forest management on the forest floor vegetation.
Peer-reviewed publications
Hedwall, P.-O., Brunet, J., Nordin, A. & Bergh, J. 2011. Decreased variation of forest understory vegetation is an effect of fertilisation in young stands of Picea abies. Scandinavian Journal of Forest Research 26: (Suppl 11) 46-55.
Hedwall, P.-O., Nordin, A., Brunet, J. & Bergh, J. 2010. Compositional changes of forest-floor vegetation in young stands of Norway spruce as an effect of repeated fertilisation. Forest Ecology and Management 259: 2418-2425.
Bergh, J., Nilsson, U., Grip, H., Hedwall, P.-O. & Lundmark, T. 2008. Effects of frequency of fertilisation on production, foliar chemistry and nutrient leaching in young Norway spruce stands in Sweden. Silva Fennica 42: 721–733.
Other publications
Hedwall, P.-O. 2008. Changes in composition of bottom and field layer vegetation as an effect of fertilisation in coniferous forest: a literature review. Rapport 40, Institutionen för Sydsvensk Skogsvetenskap, Sveriges Lantbruksuniversitet.