Soil fungi and bacteria are the key players in the transformation and processing of carbon
and nutrients in terrestrial ecosystems, yet controls on their abundance and activity are not …

The availability of carbon from rising atmospheric carbon dioxide levels and of nitrogen from
various human-induced inputs to ecosystems is continuously increasing; however, these …

The productivity of rainforests growing on highly weathered tropical soils is expected to be
limited by phosphorus availability. Yet, controlled fertilization experiments have been unable …

Potassium, mostly as a cation (K+), together with calcium (Ca2+) are the most abundant
inorganic chemicals in plant cellular media, but they are rarely discussed. K+ is not a …

Numerous studies have demonstrated that fertilization with nutrients such as nitrogen,
phosphorus, and potassium increases plant productivity in both natural and managed …

Phosphorus availability is widely assumed to limit primary productivity in tropical forests,, but
support for this paradigm is equivocal. Although biogeochemical theory predicts that …

For decades, conservation and research initiatives in tropical forests have focused almost
exclusively on old-growth forests because scientists believed that these “pristine” …

Global change is impacting forests worldwide, threatening biodiversity and ecosystem
services including climate regulation. Understanding how forests respond is critical to forest …

Global forests are experiencing rising temperatures and more severe droughts, with
consistently dire forecasts for negative future impacts. Current research on the physiological …

Because the capability of terrestrial ecosystems to fix carbon is constrained by nutrient
availability, understanding how nutrients limit plant growth is a key contemporary question …