Global climate change is already having significant impacts on arctic and alpine
ecosystems, and ongoing increases in temperature and altered precipitation patterns will …

Languishing for many years in the shadow of plant inorganic nitrogen (N) nutrition research,
studies of organic N uptake have attracted increased attention during the last decade. The …

In the face of the growing challenges brought about by human activities, effective planning
and decision-making in biodiversity and ecosystem conservation, restoration, and …

Isotope pool dilution studies are increasingly reported in the soils and ecology literature as a
means of measuring gross rates of nitrogen (N) mineralization, nitrification, and inorganic N …

Root turnover is a critical component of ecosystem nutrient dynamics and carbon
sequestration and is also an important sink for plant primary productivity. We tested global …

We investigated experimental warming and simulated grazing (clip**) effects on
rangeland quality, as indicated by vegetation production and nutritive quality, in winter …

Question: What is the relationship between species richness of vascular plants, bryophytes
and macrolichens, and two important gradients in the alpine environment, altitude and local …

The recently recognized importance of organic nitrogen (ON), particularly amino acids, to
plant nutrition in many types of agricultural and natural ecosystems has raised questions …

Forest soil measurements were made at over 180 sites distributed throughout the HJ
Andrews Experimental Forest (HJA) in the Oregon Cascade Mountains. The influences of …

The period when the snowpack melts in late spring is a dynamic time for alpine ecosystems.
The large winter microbial community begins to turn over rapidly, releasing nutrients to …