Category Archives: IonE Discovery Grant

Humans are inadvertently fertilizing grasslands around the worldGrasslands

Gardeners know how a few key inputs can dramatically change the productivity of plants —timely additions of water and fertilizer, for instance, or the right soil conditions, can dramatically boost plant productivity.

Scientists seeking to understand what determines rates of plant growth in natural grasslands and rangelands have long focused on climatic conditions such as temperature and rainfall. However, in recent years a new suspect has emerged: nitrogen. The growth of fossil-fuel-based industrial activity, transportation and agriculture in recent decades has increased the amount of nitrogen traveling through the water and air around the world. One potential result is that areas that appear to be little impacted by human development and that are not being farmed can actually be fertilized from afar by these excess nutrients. Continue reading

Boreas leadership alum gets Earth Day spotlightUrban heat island

Plenty of folks were out enjoying the overdue warmth of the spring sunshine on Earth Day yesterday — appropriate weather and occasion for a TV news spot highlighting an IonE-supported study at the Minnesota Landscape Arboretum on how different landscapes affect local temperatures. The study is part of a project on the urban heat island effect, in which buildings and other urban infrastructure absorb and radiate the sun’s heat, causing cities to be relatively warmer than their rural neighbors. Continue reading