PREFACE: BIOGEOCHEMICAL CYCLES IN TEMPERATE FOREST ECOSYSTEMS

Biocomplexity associated with biogeochemical cycles in arctic frost-boil ecosystems

Soil biogeochemical processes in novel and natural boreal forest ecosystems

Introduction Conclusions References

Nitrogen Saturation in Temperate Forest Ecosystems Hypotheses revisited

N itrogen emissions to the atmosphere due to human ace tivity remain elevated in industrialized regions of the world and are accelerating in many developing regions (Galloway 1995). Although the deposition of sulfur has been reduced over much of the United States and Europe by aggressive environmental protection policies, current nitrogen deposition reduction targets in the US are modest. Nitro...

sequestration in temperate and boreal forest ecosystems: a literature review

Riitta Hyvönen 1 , Göran I. Ågren 1 , Sune Linder 2 , Tryggve Persson 1 , M. Francesca Cotrufo 3 , Alf Ekblad 4 , Michael Freeman 1 , Achim Grelle 1 , Ivan A. Janssens 5 , Paul G. Jarvis 6 , Seppo Kellomäki 7 , Anders Lindroth 8 , Denis Loustau 9 , Tomas Lundmark 10 , Richard J. Norby 11 , Ram Oren 12 , Kim Pilegaard 13 , Michael G. Ryan 14 , Bjarni D. Sigurdsson 15 , Monika Strömgren 8,16 , Ma...

Characterizing forest fragments in boreal, temperate, and tropical ecosystems.

An increased ability to analyze landscapes in a spatial manner through the use of remote sensing leads to improved capabilities for quantifying human-induced forest fragmentation. Developments of spatially explicit methods in landscape analyses are emerging. In this paper, the image delineation software program eCognition and the spatial pattern analysis program FRAGSTATS were used to quantify ...