PPS Artic Norway, WP1

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PPS Artic Norway, WP1

• Structure, dynamics, and regeneration capacity of
  the artic-boreal transition zone

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Main objectives

• To characterise the spatiotemporal roles of
  environmental conditions and disturbances in
  shaping the structure and position of the
  artic-boreal transition, including changes in
  tree recruitment capacity.

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Sub-objectives

• to analyse how the structure of the boundary
  change along spatial and temporal scales
• to analyse if there are significant differences
  in structure and positions present between
  oceanic and continental fractions of the
  landscape, and if so elucidate main environmental
  predictions.
• To explore evidence for correlation between
  regeneration and climate along and across the
  boundary and through time

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• To analyse if the pronounced natural environment
  variability of the regions induce structural
  stability to the boundary through time, or if it
  destabilise the system
• To explore how the present position of different
  structural components of the boundary relate to
  historic positions of the boundary

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Study sites

• Troms
• Finnmark
• Kola peninsula
• This gives a transect from west to east, in each
  site two locations are chosen, one with oceanic
  climate and one with continental.

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(No Transcript)
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Methods

• Age structure coring
• Growth and site conditions annual height
  increment
• Stand structure vegetation cover and other
  structures
• Multivariate statistical methods

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Experimental design
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Main variable for the circumpolar perspective

• Growth structure (length of internodes)
• Annual height increment of trees, samplings and
  seedlings from the last 10 years (or more if
  possible).
• Vitality of all sampled individuals (healthy,
  damaged or dead)