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Factors Affecting Sediment Transport, Deposition and Erosion in Intertidal Wetlands in Louisiana

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Factors Affecting Sediment Transport, Deposition and Erosion in Intertidal Wetlands in Louisiana Louisiana State University LSU Digital Commons LSU Historical Dissertations and Theses Graduate School 1994 Factors Affecting Sediment Transport, Deposition and Erosion in Intertidal Wetlands in Louisiana. Roelof Maria Boumans Louisiana State University and Agricultural & Mechanical College Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_disstheses Recommended Citation Boumans, Roelof Maria, "Factors Affecting Sediment Transport, Deposition and Erosion in Intertidal Wetlands in Louisiana." (1994). LSU Historical Dissertations and Theses. 5778. https://digitalcommons.lsu.edu/gradschool_disstheses/5778 This Dissertation is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Historical Dissertations and Theses by an authorized administrator of LSU Digital Commons. For more information, please contact [email protected]. INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand corner and continuing from left to right in equal sections with small overlaps. Each original is also photographed in one exposure and is included in reduced form at the back of the book. Photographs included in the original manuscript have been reproduced xerographically in this copy. Higher quality 6" x 9" black and white photographic prints are available for any photographs or illustrations appearing in this copy for an additional charge. Contact UMI directly to order. University Microfilms International A Bell & Howell Information Company 300 North Zeeb Road. Ann Arbor. Ml 48106-1346 USA 313/761-4700 800/521-0600 Order Number 9508551 Factors affecting sediment transport, deposition and erosion in intertidal wetlands in Louisiana Boumans, Roelof Maria, Ph.D. The Louisiana State University and Agricultural and Mechanical Col., 1994 UMI 300 N. Zeeb Rd. Ann Arbor, MI 48106 FACTORS AFFECTING SEDIMENT TRANSPORT, DEPOSITION AND EROSION IN INTERTIDAL WETLANDS IN LOUISIANA A Dissertation Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Department of Oceanography a n d Coastal Sciences b y Roelof Maria Boumans, University of Amsterdam, 1986 August 1994 ACKNOWLEDGMENTS I would like to acknowledge the following organizations for their financial support: The National Science Foundation, The Louisiana Sea Grant College Program, The LSU Council on Research, The Minerals Management, The Estuarine Habitat Restoration Program of NOAA, The national Park service, The United States Geological Survey wetlands program , The Louisiana Department of Natural Resources, Coastal Restoration Division, EPA, The Lafouche Parish Coastal Zone Advisory Committee Division, and The St. Charles Parish Coastal Management Group. I would like to thank my co-authors of chapters 2,3,4,5 John Day, Fred Sklar Paul Kemp and Kirk Kilgen for their important contributions. I recognize the helpful suggestions of Don Cahoon, Denise Reed, Glen Garson, Mary White , Louis Haupt, the CBL Modeling lab. and the students and faculty at the LSU DOCS department I also would like to thank the many individuals who assisted with the field work especially the many volunteers and agencies who helped with the construction of sediment fences in Louisiana. I would not have been able to complete this work without the encouragement and guidance provided by my mayor professor Dr. John Day and the other members of my committee Dr. D. Nummendal, Dr. J. Suhayda, Dr. J. Geaghan and Dr. I. Mendelssohn. I am especially thankful to my wife Tiny Sikkes who was a great source of support at home and at work. TABLE OF CONTENTS ACKNOWLEDGMENTS....................................................................................................i i LIST OF TABLES................................................................................................................v LIST OF FIGURES............................................................................................................vii ABSTRACT ...........................................................................................................................ix CHAPTER 1 INTRODUCTION..............................................................................................1 Study objectives ..........................................................................................4 2 A POLYGON-BASED SPATIAL (PBS) MODEL FOR SIMULATING LANDSCAPE CHANGE..............................................8 Introduction ...................................................................................................9 Methods 1 1 Results 2 1 Discussion 3 0 3 EFFECTS OF TWO LOUISIANA MARSH MANAGEMENT PLANS ON WATER AND MATERIALS FLUX AND SHORT TERM SEDIMENTATION 3 7 Introduction 3 8 Study site 3 9 M e th o d s 4 3 Results and discussion 4 7 Conclusions 6 3 4 HIGH PRECISION MEASUREMENTS OF SEDIMENT ELEVATION IN SHALLOW COASTAL AREAS USING A SEDIMENTATION-EROSION TABLE 6 5 Introduction 6 6 M e th o d s 6 7 Results and discussion 7 1 Conclusion 7 5 (continued) TABLE OF CONTENTS (Cont.) 5 THE EFFECT OF INTER TIDAL SEDIMENT FENCES ON WETLAND SURFACE ELEVATION, WAVE ENERGY AND VEGETATION ESTABLISHMENT IN TWO LOUISIANA COASTAL MARSHES 7 6 Introduction 7 7 Study sites 8 2 M e th o d s 8 4 R esu lts 8 5 Discussion 9 0 6 MODELING IMPACTS OF MANAGEMENT MEASURES ON FRAGILE COASTAL WETLANDS 9 6 Introduction 9 7 M e th o d s 9 8 R esu lts....................................................................................................1 02 Conclusions ..........................................................................................1 1 0 7 GENERAL CONCLUSIONS........................................................................I l l Recommendations for future research 1 1 3 Management recommendations 1 14 REFERENCES.....................................................................................................................1 1 5 APPENDIXES....................................................................................................................135 Appendix A ........................................................................................1 3 6 Appendix B .............................................................................................1 4 0 Appendix C ..........................................................................................146 VITA......................................................................................................................................154 i v LIST OF TABLES CHAPTER 2: 2.1. Flow parameters values are indicative of the conductivity across the interface of adjacent p o ly g o n s ....................................................................................1 4 2.2. Linear regressions of 3-year runs of the PBS m o d e l ....................................................................................................2 8 2.3. Correlations matrix comparing hectares of swamp, marsh, and open water habitats as predicted by the PBS model ..............................................3 2 CHAPTER 3: 3.1. Tidal range during the three flux studies for each of the study sites ...........................................................4 7 3.2. Net fluxes per m^ of drainage basin for the three tidal flux studies ...................................................................5 4 3.3. Mean and standard error of short term sedimentation rates, soil parameters, and concentrations of materials measured during flux studies for each of the study sites ..........................5 8 CHAPTER 5: 5.1. Site and monitoring specifics ..............................................8 3 5.2. Linear increases in cm*y estimated for individual SET stations ..................................................................8 8 CHAPTER 6 : 6.1. Initial conditions and rate constants after calibrating the GEM hydrodynamic and sediment flux module for shallow inter tidal water bodies ..................................................................................103 6.2. Simulations of total sedimentation, changes of elevation and soil porosity were designed to test aspects of three management a p p ro a c h e s .........................................................................................1 0 5 6.3. Simulations of total sedimentation, changes of elevation and soil porosity were designed to test aspects of three management a p p ro a c h e s ......................................................................................107 (continued) v LIST OF TABLES (Cont.) 6.4. Simulations of total sedimentation, changes of elevation and soil porosity were designed
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