This volume is a series of papers summarizing the results of the Experimental Watershed Liming Study (EWLS). The EWLS was initiated in 1989 to investigate the application of calcium carbonate (limestone) to upland and wetland forests as a strategy to mitigate the acidity of lake water and improve fisheries. Woods Lake, in the Adirondack region of New York U. S. A. , is the site of long-term studies of surface water acidification. This whole-ecosystem manipulation was designed to be a comprehensive evaluation of the chemical and biological response of uplands, wetlands and surface waters to calcium carbonate treatment. A multidisciplinary project team conducted this investigation, including researchers from Clarkson University, Cornell University, the Institute for Ecosystem Studies, Smith College, EWLS was conceived by Syracuse University and U. S. Geological Survey. The Bob Brocksen and others from Living Lakes Inc. and Don Porcella of the Electric Power Research Institute. Financial support for the EWLS was provided by Living Lakes Inc. , the Electric Power Research Institute, the Empire State Electric Energy Research Corporation, the U. S. Fish and Wildlife Service and the U. S. Geological Survey. vii Biogeochemistry 32: 143-174, 1996. © 1996 Kluwer Academic Publishers. The Experimental Watershed Liming Study: Comparison of lake and watershed neutralization strategies 1 4 C. T. DRISCOLU, C. P. CIRM0 ,2, T. J. FAHEy3, V. L. BLETTE , 6 1 P. A. BUKAVECKAS5, D. A. BURNS , C. P.