Humic substances and their role in the environment : report of the Dahlem Workshop on Humic Substances and Their Role in the Environment, Berlin 1987, March 29-April 3

The Dahlem Konferenzen, Introduction, Isolation of Humic Substances from Soils and Sediments A Critical Evaluation of the Use of Macroporous Resins for the Isolation of Aquatic Humic Substances Isolation of Soil and Aquatic Humic Substances Polymerization of Humic Stubstances in Natural Environments Selective Degradation of Plant Biomolecules Generation of Model Chemical Precursors Generation in Controlled Model Ecosystems Genesis Evolution of Structural Models from Consideration of Physical and Chemical Properties Critical Comparison of Structural Implications from Degradative and Nondegradative Approaches The Characterization and Validity of Structural Hypotheses Binding and Transport Metals by Humic Materials Interaction of Humic Substances with Biota Environmental Photoprocesses Involving Natural Organic Matter Sedimentology of Organic Matter Environmental Reactions and Functions List of Participants with Fields of Research Subject Index Author Index.