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The Role of Forested Watersheds in Lake Water Quality. Do Green Watersheds Support Blue Lakes?
The history of Maines lake watersheds includes natural phenomenon like glaciation, hurricanes, tornados, and forest fires as well as man-made changes due to logging, damming, agriculture, road building, development and lake use. Today large portions of most Maine lake watersheds are mature second- and third-growth forest. These forests are critical both to the high-quality water observed in most Maine lakes and the economy of Maine. Changes in the forest cover and forest health are therefore critically important. Don Kretchmer will talk about the forests in our watersheds using historical accounts and photographs, analysis of sediments, old maps and computer simulations to shed some light on what our lakes might have looked like in the past when watersheds were cleared. That knowledge can also be used to predict what lakes might look like in the future depending on what happens in the watershed. The talk will finish with some recommendations for how we can support the variety of functions the forest provides.

Mar 17, 2021 04:00 PM in Eastern Time (US and Canada)

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Don Kretchmer, CLM
President @DK Water Resource Consulting, LLC
Don Kretchmer holds a B.S. degree from Cornell University in Natural Resources and a M.S. degree from the University of Wisconsin-Madison in Water Resource Management. He is a Certified Lake Manager (CLM). He has more than 35 years of experience conducting lake and watershed studies throughout New England and the country and is the president of DK Water Resource Consulting LLC. He has been a volunteer working on watershed and water quality issues for the Lake Wentworth Association (NH) for the past 22 years. He lives outdoors as much as possible in Wolfeboro, NH with his wife, Teresa and daughter, Mary, currently a college student in Maine.