"Because the critical zone includes air, water and soil and is the focal point of food production, it has a major effect on human life," Sparks said. "It is imperative that we better understand the interactions that occur there."

The Center for Critical Zone Research will be a multidisciplinary initiative that will bring together scientists and engineers across the University to focus on the complex interactions of rock, soil, water, air and living organisms that regulate and populate the natural habitat.

The center will develop strong partnerships with government agencies at the local, state and federal levels, with industry and with the public. A key goal of the center is to integrate science, ethics and public policy, Sparks said.

"The Center for Critical Zone Research is part of a growing network of centers at the University of Delaware that bring together scientists from a variety of disciplines to focus on complex problems of great importance," UD President David P. Roselle said. "Such high quality research is a hallmark of the University as it tackles the challenges of the 21st century."

"The center will do important work in a field that is vital to the well-being of this state, and the research findings developed here will have relevance locally, nationally and internationally," UD Provost Dan Rich said.

The primary mission of the center is to better understand the complex chemical, biological and physical processes that occur in the critical zone and thereby to improve the environmental health of Delaware, Sparks said. The state is located at the center of one of the most heavily populated regions of the United States and is seeing rapid growth in coastal and rural areas. That, coupled with industrial pollution and intensive animal agricultural production, is placing increased pressure on already fragile terrestrial and coastal marine environments.

Key environmental challenges concern drinking water quality, the health of estuaries, air quality and biodiversity, all of which could have impact on the state's tourism and agriculture, as well as on human health. The state has one of the highest incidences of cancer in the nation, Sparks said, with evidence that some cancers may be linked to environmental factors.

The center will bring together faculty from a number of outstanding departments and programs at UD, including soil science, marine science, chemistry and biochemistry, climatology, materials science and engineering. Additionally, UD has strengths in environmental policy in the College of Human Services, Education and Public Policy and in the College of Marine and Earth Studies.

Research on issues of importance in the critical zone has been identified as a priority by the Delaware Science and Technology Council, which is chaired by Delaware Lt. Gov. John Carney, and by the National Science Foundation and other federal agencies.

A team of UD faculty will lead the center with management support through the Delaware Biotechnology Institute. It will be an extension of the Delaware Experimental Program to Stimulate Competitive Research (EPSCoR program), which is funded by NSF and focuses on complex environmental systems and ecosystem health.

The steering committee for the center includes Sparks, as well as fellow UD faculty J. Thomas Sims, T.A. Baker Professor of Plant and Soil Sciences; George W. Luther III, Maxwell P. and Mildred H. Harrington Professor of Marine Studies; S. Craig Cary, professor of marine biology and biochemistry; David L. Kirchman, Maxwell P. and Mildred H. Harrington Professor of Marine Studies; Dominic M. Di Toro, Edward Davis Professor of Civil and Environmental Engineering; John F. Rabolt, Karl W. and Renate Boer Professor of Materials Science Engineering; Stanley I. Sandler, Henry Belin du Pont Chair of Chemical Engineering; Thomas P. Beebe, professor of chemistry and biochemistry; Murray V. Johnston III, professor of chemistry and biochemistry; and John M. Byrne, Distinguished Professor of Public Policy and director of UD's Center for Energy and Environmental Policy.

It is hoped the center will serve as a portal through which state officials and policy makers can gain insight into important issues surrounding the critical zone, Sparks said.

UD has taken a lead role in the field of critical zone research, in 2005 serving as host for an NSF-sponsored workshop that resulted in a call by scientists for an international initiative to study the critical zone. Sparks co-chaired the workshop organizing committee with Sue Brantley, professor of geosciences at Penn State University.

As key parts of that initiative, the scientists called for the development of an international Critical Zone Exploration Network and a systematic approach to the investigation of processes in the critical zone across a broad array of sciences, including geology, soil science, biology, ecology, chemistry, geochemistry, geomorphology and hydrology.

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