Nitrogen dynamics in managed boreal forests: Recent advances and future research directions
2016 (English)In: Ambio, ISSN 0044-7447, E-ISSN 1654-7209, Vol. 45, S175-S187 p.Article in journal (Refereed) PublishedText
Nitrogen (N) availability plays multiple roles in the boreal landscape, as a limiting nutrient to forest growth, determinant of terrestrial biodiversity, and agent of eutrophication in aquatic ecosystems. We review existing research on forest N dynamics in northern landscapes and address the effects of management and environmental change on internal cycling and export. Current research foci include resolving the nutritional importance of different N forms to trees and establishing how tree-mycorrhizal relationships influence N limitation. In addition, understanding how forest responses to external N inputs are mediated by above-and belowground ecosystem compartments remains an important challenge. Finally, forestry generates a mosaic of successional patches in managed forest landscapes, with differing levels of N input, biological demand, and hydrological loss. The balance among these processes influences the temporal patterns of stream water chemistry and the long-term viability of forest growth. Ultimately, managing forests to keep pace with increasing demands for biomass production, while minimizing environmental degradation, will require multi-scale and interdisciplinary perspectives on landscape N dynamics.
Place, publisher, year, edition, pages
2016. Vol. 45, S175-S187 p.
Boreal forests, Clear cutting, Forest management, Nitrogen fixation, Plant-soil interactions, Watersheds
Ecology Environmental Sciences
IdentifiersURN: urn:nbn:se:umu:diva-119306DOI: 10.1007/s13280-015-0755-4ISI: 000372300000010PubMedID: 26744052OAI: oai:DiVA.org:umu-119306DiVA: diva2:920735
Supplement: 22016-04-192016-04-152016-04-19Bibliographically approved