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Estuarine, coastal and marine ecosystem restoration: Confusing management and science — A revision of concepts

机译:河口,沿海和海洋生态系统的恢复:混乱的管理与科学—概念的修订

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This review presents recent concepts, understanding and experience of the restoration, recovery and human-mediated modification of estuarine, coastal and marine ecosystems. It shows that these can be divided into four categories: natural recovery from a natural or anthropogenic change (whether adverse or otherwise); anthropogenic interventions in response to a degraded or anthropogenically changed environment; anthropogenic responses to a single stressor; and habitat enhancement or creation. A conceptual framework for restoration and recovery of marine marginal and semi-enclosed areas is presented after exploring and refining the plethora of terms used in restoration science and management. Examples of management action are given including managed realignment and the restoration of docks, biogenic reefs, saltmarsh, seagrass, beaches and upper estuarine water quality. We emphasise that although recovery techniques are worthwhile if they can be carried out, they rarely (if ever) fully replace lost habitat. Moreover, while they may have some success in marginal or semi-enclosed areas such as coastal bays, estuaries and fringing habitats, they are less relevant to open coastal and marine habitats. Therefore the best option available in the latter can only be to remove the stressor, as the cause of any change, to prevent other stressors from operating and to allow the conditions suitable for natural recovery. This review emphasises that whereas some ecological concepts related to restoration are well understood, for example, the nature of ecosystem structure and functioning, others such as carrying capacity, resilience and ecosystem goods and services are still poorly quantified for the marine and estuarine environments. The linking between these ecological concepts and the management framework is also relatively recent but is required to give a holistic approach to understanding, managing and manipulating these environments.
机译:这篇综述介绍了河口,沿海和海洋生态系统的恢复,恢复和人类介导的修改的最新概念,理解和经验。它表明这些可以分为四类:从自然或人为变化(无论不利还是其他)的自然恢复;针对退化或人为改变的环境的人为干预;对单个应激源的人为反应;和栖息地的改善或创造。在探索和完善了恢复科学和管理中使用的大量术语之后,提出了恢复和恢复海洋边缘和半封闭区域的概念框架。给出了管理措施的例子,包括管理调整和码头,生物礁,盐沼,海草,海滩和河口上游水质的恢复。我们强调,尽管可以实施恢复技术是值得的,但它们很少(如果有的话)完全替代失去的栖息地。此外,尽管它们在边缘或半封闭区域(如沿海海湾,河口和边缘生境)可能取得了一些成功,但它们与开放的沿海和海洋生境无关。因此,后者中的最佳选择只能是作为任何更改的原因,删除压力源,以防止其他压力源运行并允许适合自然恢复的条件。这次审查强调,虽然人们已经很好地理解了一些与恢复有关的生态概念,例如,生态系统结构和功能的性质,但对于海洋和河口环境,诸如承载力,复原力以及生态系统商品和服务等其他概念仍然缺乏量化。这些生态概念和管理框架之间的联系也相对较新,但是需要提供一种整体方法来理解,管理和操纵这些环境。

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