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A Synthesis of Sierran Forest Biomass Management Studies and Potential Effects on Water Quality

Department of Natural Resources and Environmental Science, College of Agriculture, Biotechnology, and Natural Resources, University of Nevada, Reno, NV 89557
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Forests 2010, 1(3), 131-153; https://doi.org/10.3390/f1030131
Received: 20 July 2010 / Revised: 20 August 2010 / Accepted: 26 August 2010 / Published: 2 September 2010
(This article belongs to the Special Issue Feature Papers)
The Lake Tahoe basin, located along the California and Nevada border between the Carson and Sierra Nevada mountain ranges, represents a complex forested ecosystem consisting of numerous sub-watersheds and tributaries that discharge directly to Lake Tahoe. This synthesis focuses on historical and current nutrient pools and the effects of biomass management in watersheds of the basin relative to their potential impacts on nutrient (N, P) related discharge water quality. An accumulating forest floor as a result of fire suppression has resulted in the build-up of large nutrient pools that now provide a “natural” source of long term nutrient availability to surface waters. As a consequence, stand and forest floor replacing wildfire may cause a large magnitude nutrient mobilization impact on runoff water quality. Hence, mechanical harvest and controlled burning have become popular management strategies. The most ecologically significant long-term effects of controlled fire appear to be the loss of C and N from the forest floor. Although the application of controlled fire may have some initial impact on overland/litter interflow nutrient loading, controlled burning in conjunction with mechanical harvest has the potential to improve runoff water quality by reducing N and P discharge and improving the overall health of forest ecosystems without the danger of a high intensity wildfire. View Full-Text
Keywords: forest health; water quality; Sierra Nevada; Tahoe Basin forest health; water quality; Sierra Nevada; Tahoe Basin
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Miller, W.W.; Johnson, D.W.; Karam, S.L.; Walker, R.F.; Weisberg, P.J. A Synthesis of Sierran Forest Biomass Management Studies and Potential Effects on Water Quality. Forests 2010, 1, 131-153.

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