3 research outputs found
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Beach impact study, Padre Island National Seashore
Prepared for Office of Natural Science, Southwest Region, National Park Service, under contract CX70005044830 April 1976Vegetative differences between heavily and very lightly trafficked beaches show that more beach traffic correlates with quantitative decreases in variety and density of plants and with declines of grasses relative to forbs. The vegetated portions of all beaches continue to grow in volume. However, this is at the expense of the more seaward (more trafficked) parts of the beaches and has lead to overall loss of total beach volume except where vehicular traffic is prohibited. The very lightly trafficked beach is the only study site wherein the entire beach to mean sea level has grown. The effect of these trends on resistance to storm surge erosion remains to be tested.Marine Scienc
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Biological application for the stabilization of dredged materials, Corpus Christi, Texas : upland plantings
Submitted to Dr. Carl H. Oppenheimer, principal investigator, University of Texas Marine Science Institute, Port Aransas Marine LaboratoryAugust 31, 1979Draft final report to Texas A & M University Office of Sea Grant, College Station, Tex. No. R/SP-22Small test plots of upland, emergent, and submergent environments on recent and old dredged material and other barren sites in Corpus Christi Bay were transplanted with selected local natural plants. Data from the first year's growing season 1977-78 is presented. Selection of nursery sites, determination and location of sprig transplant and seed varieties, substrate type, soil amendment, modification, and post-plant monitoring were considered. Laboratory work included soil chemistry and textural analysis.Marine Scienc
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Biological applications for stabilization of dredged material, Corpus Christi area : six month preliminary report
The following is a preliminary report of the first six months of the research project. This included a time period from early summer (June) to early winter (November). Because the normal growing year in this area is from spring to late fall it is not the best time for a summary report. Successful planting establishment would normally be determined in a year following planting under ideal spring conditions. Therefore, this report describes preliminary findings and discusses the progress of the research program to date with the understanding that some of the early findings may be changed after the next phase of the project. The method of study was described in the research proposal. Two study areas were selected on Rincon and Harbor Island dredge material sites. The sites at Rincon included upland, shoreline, and a submergent area , and the sites at Harbor Island included upland and shoreline areas. Control submergent areas were selected at Laguna Madre and a test site selected at Mud Island in Aransas Bay. Plants were collected from various locations in the Corpus Christi Bay area both near and distant from the study sites. Plants were selected from a range of edaphic conditions and were prepared to represent several vegetative stages of development in an effort to determine those effects on transplant viability as well as determining which species are most useful for stabilization purposes.Marine Scienc