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首页> 美国政府科技报告 >Process for Setting, Managing, and Monitoring Environmental Windows for Dredging Projects.
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Process for Setting, Managing, and Monitoring Environmental Windows for Dredging Projects.

机译：用于疏浚项目的环境窗口的设置，管理和监视过程。

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Environmental windows are those periods of the year when dredging and disposal activities may be carried out because regulators have determined that the adverse impacts associated with dredging and disposal can be reduced below critical thresholds during these periods. Environmental windows, therefore, are used as a management tool for reducing the potentially harmful impacts of dredging activities on aquatic resources. The first environmental windows were established more than 30 years ago and, according to the U.S. Army Corps of Engineers (USACE), are applied today to more than 80 percent of all federal dredging projects. Given the cumulative restrictions on dredging operations resulting from the application of environmental windows, USACE requested that the National Research Council's Transportation Research Board (TRB)- Marine Board conduct a workshop to explore the decision-making process used to establish environmental windows, as well as the consistency of the windows- setting process. The statement of task for the workshop is included in Chapter 1. The National Research Council established the Committee for the Workshop on Environmental Windows for Dredging Projects to design, oversee, and interpret the results of the workshop. Formed in June 2000, the committee comprised 12 members representing ports, dredging contractors, benthic and wetland ecologists, commercial fisheries experts, sedimentologists, ichthyologists, environmentalists, and state and federal regulatory agencies. During the course of a 1-year period, the committee met three times-the first to plan the workshop, the second to review the workshop results, and the third to prepare the committee's findings and recommendations presented in this report. Members of the committee also participated in the Sea Grant Conference on Dredged Material Management: Options and Environmental Considerations and organized and participated in a half-day session at the 2001 National Dredging Team Conference.

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