Archive for July, 2015

Climate: CO2 hinders plants’ nitrogen uptake

6 July 2015

I’ve seen a couple of earlier studies on midwest grasslands that indicated something like this.

There is no brighter future.

Cassandra

Summit County Citizens Voice

Wheat field in Upper Austria Wheat ripens under a summer sun. @bberwyn photo.

Study suggests that greenhouse gas pollution will have a fundamental impact on plant-nutrient cycles and food production

Staff Report

FRISCO — Increased concentrations of atmospheric carbon dioxide is hindering some plants from absorbing nitrogen, the nutrient governing crop growth in most terrestrial ecosystems.

Concentrations of nitrogen in plant tissue is lower in air with high levels of carbon dioxide, regardless of whether or not the plants’ growth is stimulated, University of Gothenburg (Sweden) researchers found in a new study, published in the journal Global Change Biology.

The study examined various types of ecosystems, including crops, grasslands and forests, and involves large-scale field experiments conducted in eight countries on four continents.

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