美国大陆城市湖泊的识别和特征

IF 1.1 4区 环境科学与生态学 Q4 LIMNOLOGY Lake and Reservoir Management Pub Date : 2022-02-17 DOI:10.1080/10402381.2021.2022044
L. Costadone, M. Sytsma
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引用次数: 2

摘要

[摘要]李建军,李建军。美国大陆城市湖泊的鉴定和特征。湖泊保护区管理。38:126-138。城市湖泊通过提供各种生态系统服务,有助于提高城市地区的生活质量和可持续性。我们定义并确定了美国大陆的城市湖泊;提供水质、管理活动和生态系统服务的综合评估;并确定这些系统与非城市湖泊的比较。如果湖泊和水库完全位于人口至少5万人的区域内,并且位于人口密度至少为每平方英里1000人(每平方公里386人)且不透水覆盖面积超过10%的次流域,则被确定为“城市”。我们确定了1950个城市湖泊和水库,并将其与国家湖泊评估中确定的2066个非城市湖泊进行了比较。基于给定生态区的参考条件,由于叶绿素a (Chl-a)浓度较高,城市湖泊比非城市湖泊更小、更浅,且受干扰程度更高。在生态区域水平上的磷-叶绿素关系分析表明,除阿巴拉契亚北部、干旱和中西部上游生态区外,各生态区城市湖泊与非城市湖泊的Chl-a与总磷(TP)的关系存在显著差异。除沿海平原、南部平原和温带平原外,各生态区城市湖泊富营养化比例均显著高于其他生态区。与非城市湖泊相比,城市湖泊的水质损害原因不同。鉴于不同的生态功能、损害的原因和提供的服务,因此可能需要更有针对性的管理来解决城市湖泊面临的特殊挑战。
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Identification and characterization of urban lakes across the continental United States
Abstract Costadone L, Sytsma MD. 2022. Identification and characterization of urban lakes across the continental United States. Lake Reserv Manage. 38:126–138. Urban lakes contribute to the quality of life and sustainability of urban areas by providing a variety of ecosystems services. We defined and identified urban lakes across the continental United States; provided a comprehensive assessment of water quality, management activities, and ecosystem services; and determined how these systems compare to non-urban lakes. Lakes and reservoirs were identified as “urban” if they were completely within areas with at least 50,000 people, and in a subwatershed with a population density of at least 1000 people per square mile (386 people per square kilometer) and more than 10% of impervious cover. We identified 1950 urban lakes and reservoirs that were compared to a population of 2066 non-urban lakes identified from the National Lake Assessments. Urban lakes were smaller, shallower, and in a more disturbed condition than non-urban lakes due to high chlorophyll a (Chl-a) concentration, based on reference conditions for a given ecoregion. Analysis of the phosphorus–chlorophyll relationship at the ecoregional level revealed that there was a significant difference in the relationship between Chl-a and total phosphorus (TP) between urban and non-urban lakes in every ecoregion except in the Northern Appalachian, Xeric, and Upper Midwest ecoregions. A significantly higher proportion of urban lakes were eutrophic in all ecoregions, except in the Coastal Plains, Southern Plains, and Temperate Plains ecoregions. Urban lakes had different causes of water quality impairment compare to non-urban lakes. Given the differing ecological functioning, causes of impairment, and services provided, more targeted management may therefore be necessary to address the particular challenges urban lakes are facing.
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来源期刊
Lake and Reservoir Management
Lake and Reservoir Management 环境科学-海洋与淡水生物学
自引率
6.70%
发文量
22
期刊介绍: Lake and Reservoir Management (LRM) publishes original, previously unpublished studies relevant to lake and reservoir management. Papers address the management of lakes and reservoirs, their watersheds and tributaries, along with the limnology and ecology needed for sound management of these systems. Case studies that advance the science of lake management or confirm important management concepts are appropriate as long as there is clearly described management significance. Papers on economic, social, regulatory and policy aspects of lake management are also welcome with appropriate supporting data and management implications. Literature syntheses and papers developing a conceptual foundation of lake and watershed ecology will be considered for publication, but there needs to be clear emphasis on management implications. Modeling papers will be considered where the model is properly verified but it is also highly preferable that management based on the model has been taken and results have been documented. Application of known models to yet another system without a clear advance in resultant management are unlikely to be accepted. Shorter notes that convey important early results of long-term studies or provide data relating to causative agents or management approaches that warrant further study are acceptable even if the story is not yet complete. All submissions are subject to peer review to assure relevance and reliability for management application.
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