About the Cover
Cover: As our forests and agricultural lands are replaced with impervious surfaces due to urban development, stormwater
management has become a major concern. Establishing vegetation on rooftops, known as green roofs, is one method of managing
stormwater runoff. Vegetated green roofs not only reduce the amount of stormwater runoff, they also extended runoff duration
beyond the actual rain event. Pictured are the green roof research platforms at Michigan State University.
See Van Woert et al., "Green Roof Stormwater Retention: Effects of Roof Surface, Slope, and Media Depth."
p. 1036-1044
Photo by Bradley Rowe, Michigan State University.
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Copyright © 2005 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.