本文主要以陆地地表淡水湖泊与河流水环境为例，对天然有机质的来源、化学结构、循环特征，与养分循环的耦合关系，对有毒金属元素和有机污染物迁移转化和毒性影响机理等几个方面的研究进展进行了简要的总结；针对我国水体富营养化和环境污染等重要环境问题，阐述当前应该采取的研究思路和存在的主要科学内容，并对现代有机环境与生物地球化学学科的研究趋势进行了展望。

Preface

Part Ⅰ Characterization of Natural Organic Matter (NOM)

 Chapter 1 Dissolved Organic Matter in the Aquatic Environment

 Chapter 2 Detection of a DNA-like Material in Suwannee River Fulvic Acid

 Chapter 3 Multi-dimensional Fluorescence Spectroscopy and Parafac for Dissolved Organic Matter Characterization

 Chapter 4 Studying Organic Matter and Water in Soils by NMR: Cautions and Insights

Part Ⅱ Interactions Between NOM and Contaminants

 Chapter 5 Model Prediction of the Speciation, Toxicity and Bioavailability of Trace Metals in the Presence of Natural Organic Matter (NOM)

 Chapter 6 An Investigation of Lead Distribution and Lead Complexed to Soil-Derived Humic Acids From a Shooting Range

 Chapter 7 Effects of Condensed Organic Matter on Sorption of Organic Contaminants in Soils and Sediments

 Chapter 8 Sorption Properties of Organic Compounds by Kerogen

 Chapter 9 Sorption and Sequestration of Organic Contaminants in Soils and Sediments

 Chapter 10 Sorptive Behavior of Plant Cuticular Materials

Part Ⅲ Environmental Impacts of NOM

 Chapter 11 Characterization of Phosphorus Associated With Natural Organic Matter

 Chapter 12 Sorption of Human and Veterinary Antibiotics to Soils

 Chapter 13 Role of Soils and Soil Management for Mitigating Greenhouse Effects