Locations and environments of U.S. army training and testing lands: An ecoregional framework for assessment

William W. Doe III, Robert B. Shaw, Robert G. Bailey, David S. Jones, Thomas E. Macia
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引用次数: 15

Abstract

The U.S. Army manages over 12 million acres of federal training and testing lands contained within military installations throughout the 50 United States. These lands are a critical national asset for defense readiness, dedicated to providing realistic training and testing environments for army units and equipment. The locations and physiographic diversity of the Army's current land inventory is a function of historical precedent, modern-day land expansions, and requirements for strategic projection of forces. Many Army lands are relatively undeveloped, providing important ecological settings for a variety of flora and fauna, including many threatened and endangered species. As a responsible land steward, the Army is committed to protection and sustainable use of these natural resources, with concurrent benefit to both the army and the public. Army training and testing activities can cause environmental impacts that may be detrimental to the long-term sustainment of ecological functions. These realities pose significant land management challenges to the Army. The application of established ecologicalframeworks for strategically assessing land-use impacts and land management approaches is demonstrated for 31 major Army installations, using Bailey's “ecoregion classification system,” developed by the U.S. Forest Service. The Ecoregions framework is used to (1) classify and catalog the ecological diversity of Army lands, (2) provide a comparative framework for assessing land resiliencyfrom Army impacts, and (3) extrapolate knowledge of perturbed ecosystem behavior and response from one army installation to others in similar ecoregions.

美国陆军训练和试验场的地点和环境:评估的生态区域框架
美国陆军管理着超过1200万英亩的联邦训练和测试用地,这些土地包含在美国50个军事设施内。这些土地是国防准备的关键国家资产,致力于为陆军单位和装备提供现实的训练和测试环境。陆军目前土地库存的位置和地理多样性是历史先例、现代土地扩张和战略兵力投射要求的一个功能。许多陆军土地相对未开发,为各种动植物提供了重要的生态环境,包括许多受威胁和濒危物种。作为负责任的土地管理者,陆军致力于保护和可持续利用这些自然资源,使军队和公众共同受益。军队的训练和试验活动可能造成环境影响,可能对生态功能的长期维持有害。这些现实给陆军带来了重大的土地管理挑战。利用美国林务局开发的贝利“生态区域分类系统”,对31个主要陆军设施进行了已建立的生态框架的应用,以战略性地评估土地使用影响和土地管理方法。生态区框架用于(1)对陆军土地的生态多样性进行分类和编目,(2)为评估陆军影响下的土地复原力提供一个比较框架,以及(3)推断类似生态区中一个陆军设施受干扰的生态系统行为和响应的知识。
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