Water Body Status Objectives Witham

Water body status objectives describe the long term aim for specific parts of the water environment. This dataset includes the latest objectives of all water bodies in the Witham catchment. Water body objectives consist of two pieces of information: the status and the date by which that status is planned to be achieved. The status part of an objective is based on a prediction of the future status classification that would be achieved if technically feasible measures are implemented and, when implemented, would give rise to more benefits than they cost. The objective also takes into account the requirement to prevent deterioration and, as far as practicable, the requirements of protected areas. The date part of an objective is determined by considering whether the measures needed to achieve the planned status are currently affordable and, once implemented, the time taken for ecology or the groundwater to recover. This data supports the Water Framework Directive river basin management plans that can be found here: https://www.gov.uk/government/collections/river-basin-management-plans-2015 and is available to view interactively here: http://environment.data.gov.uk/catchment-planning/ManagementCatchment/3116 Attribution statement: © Environment Agency copyright and/or database right 2016. All rights reserved.水体状态目标（Water Body Status Objectives）阐述了特定水环境片区的长期治理目标。本数据集涵盖了威瑟姆流域（Witham Catchment）内所有水体的最新状态目标。水体状态目标包含两项核心信息：水体状态达标要求，以及该状态计划达成的截止日期。目标中的状态部分基于对未来水体状态等级的预测——该等级为落实技术可行的治理措施后可达成的水平，且措施实施后产生的收益高于其实施成本。该目标同时需满足防止水环境退化的要求，并在切实可行范围内兼顾保护区的相关规定。目标中的截止日期部分需综合考量两方面因素：一是当前是否具备足够预算落实计划状态所需的治理措施；二是措施实施后，生态系统或地下水系统恢复所需的时长。本数据集为《水框架指令》（Water Framework Directive）的流域管理计划提供数据支撑，相关计划可通过以下链接查阅：https://www.gov.uk/government/collections/river-basin-management-plans-2015；本数据集支持交互式浏览，浏览链接为：http://environment.data.gov.uk/catchment-planning/ManagementCatchment/3116。版权声明：© 英国环境署（Environment Agency）2016年享有版权及/或数据库权利，保留所有权利。