Restoring watersheds project by project: trends in Chesapeake Bay tributary restoration
Restoring watersheds project by project: trends in Chesapeake Bay tributary restoration
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按项目恢复流域：切萨皮克湾支流恢复的趋势
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
D. Hart
中科院分区：
文献类型：
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作者：
B. Hassett;M. Palmer;E. Bernhardt;Sean M. C. Smith;J. Carr;D. Hart
恢复水生生态系统是区域和全球的一个高度优先事项，但直到最近，此类努力才采取整体方法，包括恢复流向沿海地区的溪流和河流。作为美国最大的河口，切萨皮克湾一直是北美有史以来最引人注目的修复计划之一的焦点。虽然主要重点是潮汐水域，但最近也制定了淡水支流清理策略。我们编制了切萨皮克湾流域 (CBW) 超过 4700 个现有河流和溪流恢复项目的第一个综合数据库，以检查资金花在哪里、促进恢复的问题以及使用的方法。据保守估计，自1990年以来，恢复项目的投资已超过4亿美元。大多数项目的实施是为了恢复河岸地区的森林植被和改善水质。尽管与美国其他地区相比，CBW 的恢复活动密度极高，但只有 5.4% 的项目记录表明对项目绩效进行了相关监测。为了提供具有成本效益的管理解决方案，我们建议开发一个集中跟踪系统，其中包括与潮汐和非潮汐水道相关的恢复项目，并大幅增加实施后对各个项目进行全面监测的投资。
Restoration of aquatic ecosystems is a high priority regionally and globally, yet only recently have such efforts adopted holistic approaches that include the restoration of streams and rivers flowing to coastal areas. As the largest estuary in the US, the Chesapeake Bay has been the focus of one of the most high-profile restoration programs ever undertaken in North America. While the primary emphasis has been on tidal waters, freshwater tributary clean-up strategies have recently been developed. We have compiled the first comprehensive database of over 4700 existing river and stream restoration projects in the Chesapeake Bay Watershed (CBW) to examine where dollars are being spent, what issues motivate restoration, and what approaches are used. By conservative estimates, in excess of $400 million has been invested in restoration projects since 1990. The majority of projects were implemented to restore forest vegetation in riparian areas and improve water quality. Although the CBW has an extremely high density of restoration activities relative to other regions of the US, only 5.4% of the project records indicated that related monitoring of project performance has occurred. To provide cost-effective management solutions, we recommend that a centralized tracking system be developed that includes restoration projects associated with both tidal and non-tidal waterways, along with a substantial increase in investment in the comprehensive monitoring of individual projects following implementation.