English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

. Photosynthesis provides carbon for the synthesis of macromolecules toconstruct cells during growth. This is the basis for the key role ofphotosynthesis in the carbon dynamics of ecosystems and in the biogenic CO2 assimilation. The development of eddy-covariance (EC) measurementsfor ecosystem CO2 fluxes started a new era in the field studies ofphotosynthesis. However, the interpretation of the very variable CO2 fluxes in evergreen forests has been problematic especially intransition times such as the spring and autumn. We apply two theoreticalneedle-level equations that connect the variation in the light intensity,stomatal action and the annual metabolic cycle of photosynthesis. We then usethese equations to predict the photosynthetic CO2 flux in fiveScots pine stands located from the northern timberline to Central Europe. Ourresult has strong implications for our conceptual understanding of the effectsof the global change on the processes in boreal forests, especially of thechanges in the metabolic annual cycle of photosynthesis.

Prediction of photosynthesis in Scots pine ecosystems across Europe by a needle-level theory