Marine Corps Base Camp Lejeune Intracoastal Waterway Shoreline Characterization

Critical military training and testing on lands along the nation’s coastal and estuarine shorelines are increasingly placed at risk because of development pressures in surrounding areas, impairments due to other anthropogenic disturbances, and increasing requirements for compliance with environmental regulations. The U.S. Department of Defense (DoD) intends to enhance and sustain its training and testing assets and to optimize its stewardship of natural resources through the development and application of an ecosystem-based management approach on DoD installations. To accomplish this goal, particularly for installations in estuarine/coastal environments, the Strategic Environmental Research and Development Program (SERDP) launched the Defense Coastal/Estuarine Research Program (DCERP) as a minimum 10-year effort at Marine Corps Base Camp Lejeune (MCBCL) in North Carolina. The results of the first six years of the program (DCERP1) are presented here. The overarching objectives of DCERP are to: (1) understand the effects of military training activities, infrastructure development, and other coastal military installations; (2) develop models, tools, and indicators to evaluate ecosystem health; and (3) recommend adaptive management strategies to sustain ecosystem natural resources within the context of an active military installation. Shoreline characterization of the Intracoastal waterway within the foundries of Marine Corps Base Camp Lejeune. Data was collected by ground truth methods and included boat operations. The shoreline of the ICW was characterized by boat in April and June 2010 using Global Positioning Systems (GPS) equipment and ArcGIS software. The previously digitized 2009 shoreline was edited within ArcGIS, using GPS equipment to obtain the position of the boat relative to the shoreline. Four fields were created for the shoreline shapefile, including: shoreline type, vegetation/species, modification type and relief. A unique identifying code was created by concatenating the field values of the four fields. in January 2013 the field Veg_2 was created for the output of SLtype and Vegtype codeing.美国沿海及河口沿岸地带的关键军事训练与测试活动正日益面临风险，风险来源包括周边区域的开发压力、其他人为活动造成的生态损害，以及愈发严格的环境合规要求。美国国防部（U.S. Department of Defense, DoD）计划通过在其军事设施中开发并应用基于生态系统的管理模式，强化并维持其训练与测试资产，并优化对自然资源的管理工作。为实现这一目标，尤其是针对河口/沿海环境中的军事设施，战略环境研究与发展计划（Strategic Environmental Research and Development Program, SERDP）在北卡罗来纳州的海军陆战队勒琼基地（Marine Corps Base Camp Lejeune, MCBCL）启动了一项为期至少10年的国防沿海/河口研究计划（Defense Coastal/Estuarine Research Program, DCERP）。本文呈现了该计划前六年（DCERP1）的研究成果。DCERP的总体目标包括：1）明晰军事训练活动、基础设施建设对沿海军事设施及周边环境的影响；2）开发用于评估生态系统健康状况的模型、工具与指标；3）提出适应性管理策略，以在现役军事设施的运营框架内维持生态系统自然资源。海军陆战队勒琼基地沿岸内陆水道（Intracoastal Waterway, ICW）的岸线特征表征工作采用地面实测方法采集数据，涵盖船载作业环节。2010年4月与6月，研究团队借助全球定位系统（Global Positioning Systems, GPS）设备与ArcGIS软件，通过船载作业完成了ICW岸线的特征表征。研究团队利用GPS设备获取船只相对于岸线的位置信息，在ArcGIS中对此前已数字化的2009年岸线数据进行编辑修正。研究团队为岸线shapefile创建了四个属性字段，分别为：岸线类型、植被/物种、改造类型与地形起伏。通过将这四个字段的属性值进行拼接，生成了唯一的识别编码。2013年1月，研究团队新增Veg_2字段，用于输出SLtype与Vegtype的编码结果。