The astronomer walks up to the podium and everyone goes quiet. There are probably 80 people sitting in this amphitheater at 10:30 PM, waiting to be toured through the sky. We’re at a star party at the McDonald Observatory around 30 miles outside of Marfa, TX. Tonight, this astronomer will guide us, help us see Read more about A Night of Astronomy—Uthara Vengrai[…]
Most ecosystem and earth-system models predict soil organic carbon losses from temperate grasslands as temperatures increase. However, the magnitude of that loss is uncertain and the influence of other global change factors on the temperature sensitivity of decomposition remains poorly understood. Uthara’s research explores how historical temperature regimes interact with global change factors (i.e., warming, Read more about Global change effects on soil greenhouse gas exchange and carbon storage along a temperature gradient in the North American Central Grasslands[…]
Roots do everything. They are the connector between plants and soil–the interface at which many of the transactions of life are made. Roots (with the help of their mycorrhizal associates) conduct a plant’s search for nutrients, water, and shelter. They scour the soil for the ingredients of life and support whole ecosystems of microorganisms, plants, Read more about Global change and root production: how does land use and climate change affect life belowground? — Uthara Vengrai[…]
Drylands cover about 40% of the world and the vast majority of the American West. They are expansive, diverse places all united by one thing: water limitation. These ecosystems are slow to build up carbon and slow to decompose it, which leaves rich pools of old carbon, the majority of which is stored in the Read more about The importance of a few places and a few organisms: soil methane fluxes in the West—Uthara Vengrai[…]
Uthara’s research focuses on the interactive effect of global change scenarios and land use practices on soil carbon and nitrogen dynamics in sagebrush ecosystems of the American West. Drylands contain about 20% of the world’s carbon stock, with the majority being held in slow-cycling belowground pools. Despite playing a critical role in the global carbon Read more about Impacts of global change and land use on biogeochemical dynamics in Southwestern Wyoming[…]