Terrestrial plant biomarkers and their carbon isotopes provide insights into carbon cycling,
paleovegetation and paleoclimate, ranging in scale from local to global. Over the past …

The mechanistic understanding of isotope fractionation processes is increasing but we still
lack detailed knowledge of the processes that determine the isotopic composition of the tree …

Gross primary production (GPP)—the uptake of carbon dioxide (CO2) by leaves, and its
conversion to sugars by photosynthesis—is the basis for life on land. Earth System Models …

Nitrogen (N) is a major component of the photosynthetic apparatus and is widely used as a
fertilizer in crops. However, to the best of our knowledge, the dynamic of photosynthesis …

Climate change is expected to pose a global threat to forest health by intensifying extreme
events like drought and insect attacks. Carbon allocation is a fundamental process that …

A decrease in the 13C/12C ratio of atmospheric CO2 has been documented by direct
observations since 1978 and from ice core measurements since the industrial revolution …

Using robust, pairwise comparisons and a global dataset, we show that nitrogen
concentration per unit leaf mass for nitrogen-fixing plants (N2FP; mainly legumes plus some …

The response of forests to climate change depends in part on whether the photosynthetic
benefit from increased atmospheric CO2 (∆ Ca= future minus historic CO2) compensates for …

The terrestrial carbon and water cycles are intimately linked: the carbon cycle is driven by
photosynthesis, while the water balance is dominated by transpiration, and both fluxes are …

Elevational gradients are often used to quantify how traits of plant species respond to abiotic
and biotic environmental variations. Yet, such analyses are frequently restricted spatially …