RESULTS OF PRIOR NSF SUPPORT RPS: 1 INTRODUCTION RPS: 1 THE VCR MEGASITE RPS: 1 THE NORTH HOG CHRONOSEQUENCE SITE RPS: 2 THE MAINLAND MARSH SITE RPS: 3 LAGOONS AND MARSHES SITE RPS: 4 LONG-TERM EXPERIMENTS RPS: 4 INTERSITE, MODELING AND SYNTHETIC STUDIES RPS: 4 RELATION TO FUTURE RESEARCH RPS: 5 VCR RESEARCH INFRASTRUCTURE RPS: 5 HUMAN RESOURCE DEVELOPMENT RPS: 5 PUBLICATIONS DURING LTER II (1992-Present) RPS: 6 PROJECT DESCRIPTION PD: 1 SECTION 1 PD: 1 INTRODUCTION PD: 1 The Site PD: 1 Site History PD: 3 Succession and Ecological State Change PD: 3 Free Surfaces PD: 4 VCR RESEARCH PROGRAMS PD: 5 Relationships Between Free Surface Dynamics and VCR Ecosystems PD: 6 VCR Megasite PD: 7 North Hog Island Chronosequence Site PD: 9 Hog Island Bay Lagoons and Marshes Site PD: 11 Mainland Marsh Site PD: 13 SECTION 2 PD: 16 LONG TERM EXPERIMENTS PD: 16 Water Table Draw Down Experiments PD: 16 Lagoon Marsh Surface Lowering Experiment PD: 17 Mainland Marsh Inundation Experiments PD: 18 LONG-TERM DATA SETS PD: 20 Primary Production PD: 20 Organic Matter Accumulation PD: 21 Nutrient Movements and Transformations PD: 21 Trophic Structure PD: 22 Disturbance PD: 22 SYNTHESIS AND MODELING PD: 23 Ecosystem State Models PD: 23 Threshold State Variable Change Models PD: 24 Wetland Models PD: 24 Disturbance Frequency Models PD: 25 Material Flux Models PD: 25 Sediment Deposition Model for Marsh Surfaces PD: 26 DATA MANAGEMENT PD: 26 INTERSITE AND NETWORK ACTIVITIES PD: 27 RELATED RESEARCH PROJECTS PD: 27 DISSEMINATION OF INFORMATION PD: 27 ARCHIVES AND INVENTORIES PD: 28 LEADERSHIP, MANAGEMENT AND ORGANIZATION PD: 28 NEW PROJECTS AND TECHNOLOGIES PD: 29 GPS Kinematic Hypsometry PD: 29 GPS Kinematic Ecotone Surveys PD: 29 Chronosequence Exclosure Project PD: 29 Nitrogen Budget Project PD: 30 SUPPLEMENTAL SUPPORT PD: 30 LITERATURE CITED LIT: 1 CURRICULUM VITAE CV: 1 BUDGET BGT: 1 BUDGET JUSTIFICATION BGT:11 Equipment: BGT:12 SUBCONTRACTS BGT:13 APPENDICES APDX: 1 LETTERS OF INSTITUTIONAL COMMITMENT APDX: 1 OTHER RELATED SUPPORT APDX: 4 PROJECT BIBLIOGRAPHY (20 papers) APDX: 5 CURRENT AND PENDING SUPPORT APDX: 6 FACILITIES AND EQUIPMENT APDX:31 SITE DESCRIPTIONS APDX:33 POLICY ON HUMANE CARE OF ANIMALS APDX:33