The use of fossil fuels and fertilizers has increased the amount of biologically reactive
nitrogen in the atmosphere over the past century. As a consequence, forests in industrialized …

This paper reviews the role of soil respiration in determining ecosystem carbon balance,
and the conceptual basis for measuring and modeling soil respiration. We developed it to …

… These guidelines are not intended to replace local legal reporting requirements but as a
guide towards harmonization of vaccine safety reporting of GBS to a surveillance system or …

FLUXNET is a global network of micrometeorological flux measurement sites that measure
the exchanges of carbon dioxide, water vapor, and energy between the biosphere and …

… and improved comparability, regions without data in either MTE (non-vegetated areas) or
TRMM soil-moisture data (very dense vegetation) are blanked in the trend maps of a and b. …

… Energy balance closure, a formulation of the first law of thermodynamics, requires that the
sum of the estimated latent (LE) and sensible (H) heat flux be equivalent to all other energy …

… In (b) a window of prescribed size around each gap is used to construct mean diurnal
variation for gap filling within that window. If only seasonal and annual sums are of interest this …

Old-growth forests remove carbon dioxide from the atmosphere 1 , 2 at rates that vary with
climate and nitrogen deposition 3 . The sequestered carbon dioxide is stored in live woody …

Terrestrial ecosystems sequester 2.1 Pg of atmospheric carbon annually. A large amount of
the terrestrial sink is realized by forests. However, considerable uncertainties remain …

Temperate and boreal forests in the Northern Hemisphere cover an area of about 2 × 10 7
square kilometres and act as a substantial carbon sink (0.6–0.7 petagrams of carbon per year…