Wednesday, April 24, 2019 @ 3:30 pm in 270 Soils Bldg. Reception to follow in the Jackson-Tanner Commons
“Impact of a Changing Environment on Soil Chemical Processes”
by Donald L. Sparks
(Unidel S. Hallock du Pont Chair, Director, Delaware Environ. Inst.; Francis Alison Professor, Soil & Environmental Chemistry, Plant & Soil Sciences Dept., Univ. of Delaware, Newark, Delaware)
Abstract: Major environmental challenges, due to climate change, are having a profound impact on humankind. Rising seas and temperatures are causing increased flooding and melting of ice and permafrost soils. The impact of these processes on cycling of metals and nutrients in soils and water is not well understood. For example, how do rising seas, that cause inundation of soils with saline water, followed by retrenchment, and salinization of groundwater, affect cycling of redox active elements such as arsenic (As) and chromium (Cr), as well as nutrients? Under changing climatic conditions, how will sequestration of C in soils be impacted, and resultant mobility of elements? How will other important soil chemical processes be impacted? The presentation will explore these questions, and others, over a range of spatial and temporal scales.
Made available by the generosity of Leo M. Walsh and the Leo M. Walsh Distinguished Lecture in Soil Science Fund