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  • Analysis of Vegetation as Terrain: The “How” and “Why” of US Army Doctrine

    Abstract: There is a significant knowledge gap for Army doctrine concerning civilian research scientists. A relatively small number of soldiers make the transition from warfighter to research and development at the basic and applied levels. That number is even less when considering former warfighters that have applied Army doctrine in an operational or advanced Army schooling environment. This special report is intended to focus solely on the Army’s current capabilities and doctrinally defined processes to analyze vegetation as an essential component of the natural terrain. The objective of this report is to review current Army doctrine related to analysis of the vegetated terrain; to explore currently leveraged tactics, techniques, and procedures (TTPs); and identify valuable geospatial resources as they apply to military planning. For ease to readers unfamiliar with US Army doctrine, much of the referenced material is directly presented herein as tables and figures throughout the document and appendices (e.g., data sources, product examples, and glossary).
  • The Use of Native Vegetation for Structural Stability in Dredged Material Placement Areas: A Case Study of Beneficial Use Site 4A, Chocolate Bayou, Brazoria County, Texas

    PURPOSE: This technical note is the third in a series about using native plant communities to enhance dredge material placement areas (DMPAs), confined disposal facilities (CDFs), and projects where dredged sediments are used for various engineering purposes. DMPAs and CDFs occur in numerous locations spanning different geographic locations nationwide. Oftentimes, these containment dikes are constructed using earthen materials. The materials are either barged in from an off-site location or obtained on-site from new or virgin materials, consisting of heavy clay particles and sediments removed from the nearby channel. In the Gulf Coast region of the United States, new or virgin materials are obtained during channel deepening activities using mechanical or hydraulic dredging methods. Examples of these dredging methods include hopper dredge, pipeline dredge, and excavator or bucket dredge. When materials are considered suitable for beneficial use purposes, and following environmental compliance, the materials are often used to construct containment dikes in DMPAs and CDFs. The project site used in this study—Beneficial Use Site 4A (BUS 4A)—used dredged material during its construction and has periodically received dredged material to maintain its target elevation of 2 ft (0.67 m) above the mean lower low water; hence, this site presents an opportunity for use as a demonstration study. Project goals include (1) demonstrating the use of native plant communities to provide structural stability, (2) introducing targeted vegetation establishment on DMPAs and CDFs as a management strategy to improve engineering and environmental outcomes, and (3) providing technology transfer to the U.S. Army Corps of Engineers (USACE) districts through hands-on planting techniques and installation of natural material (in this demonstration, coir logs).
  • The Use of Native Vegetation and Natural Materials in Shoreline Stabilization: A Case Study of Bubble Gum Beach, Rehoboth Beach, Delaware

    PURPOSE: This technical note is the fourth in a series about using native plant communities to achieve engineering and ecological purposes such as shoreline stabilization, structural enhancements, habitat creation, and ecosystem development. In this series, we demonstrate the utility of natural materials (specifically, native vegetation, oyster reefs, and coir logs) in living shoreline projects. Plant species and plant communities play critical roles in wave attenuation and sediment accretion in coastal areas. The application of vegetation in the coastal areas, especially on the East and Gulf Coasts, has focused heavily on the creation of living shorelines—serving both environmental and engineering purposes. This technical note documents the workshop conducted by the US Army Engineering Research and Development Center (ERDC) and hosted by the US Army Corps of Engineers’ (USACE) Philadelphia District (NAP) and Center for the Inland Bays. The goals of this technical note are (1) to demonstrate the application of native plant communities, oyster shells, and coir (coconut) materials and their installation techniques along shorelines to the engineering community; (2) to demonstrate how targeted vegetation establishment can facilitate ecosystem development along shorelines to improve engineering and environmental outcomes; and (3) to provide native vegetation installation techniques for living shorelines projects’ purposes.
  • PUBLICATION NOTICE: Evaluating Collection Parameters for Mobile Lidar Surveys in Vegetated Beach-Dune Settings

    Purpose: The goal of this Coastal and Hydraulics Engineering Technical Note (CHETN) is to compare collection parameters and gridding techniques for mobile lidar surveys of beach-dune systems in the northern Outer Banks, NC.
  • USACE expands debris removal operation in Puerto Rico

    SAN JUAN, P.R. – U.S. Army Corps of Engineers debris removal teams, in coordination with FEMA, are actively conducting debris removal operations in Toa Baja. In addition, debris removal will begin in, but not limited to, Ponce, Arecibo, Humacao, Caguas and Fajardo in the near future.
  • Training Helps Regulators in Identifying Wetland Plants

    For District regulators, knowing a grass from a sedge is not just a trivial pursuit question. Jurisdictional wetlands are determined in part by what plants are present. Robert Sivinski recently instructed a hands-on, three-day course to help the participants improve their skills in identifying New Mexico wetland plants.
  • NR-037: Volunteers needed at Corps lakes for 20th National Public Lands Day events

    NASHVILLE, Tenn. (Sept. 4, 2013) The U.S. Army Corps of Engineers Nashville District is enlisting the support of volunteers at its lakes on the Cumberland River and its tributaries for the 20th annual National Public Lands Day Sept. 28.
  • Air Potato Roundup yields big results, educates community

    National Invasive Species Week, held March 2 through 8, focused on raising awareness of non-native threats to local ecosystems and endangered species. Invasive species smother native plants and are one of the greatest ecological threats to natural communities, according to the U.S. Department of the Interior, which also estimates the costs to prevent, monitor and control invasive species at about $137 billion annually.
  • Spencer discusses invasive plants at local science symposium

    In an effort to educate land managers and the public about two plants that are just beginning to invade the Jacksonville area, biologist Jessica Spencer gave a presentation at the 2013 Timucuan Science and History Symposium Jan. 25 in Jacksonville, Fla.