Abstract Excess nutrient loads from streams drive primary production in downstream lakes, and managing these loads is key to achieving desired conditions in lakes. However, quantifying nutrient loads requires intensive sampling of both nutrient concentrations and streamflow. Total phosphorus measurements collected during routine stream monitoring are broadly available, but these data are thought to provide little information on annual nutrient loads because they are typically collected during low, baseflow conditions. Here, we demonstrate that these routine phosphorus measurements are correlated with annual nutrient loads. We also show that the average of these routine measurements of stream phosphorus within a watershed predict the average lake chlorophyll concentration in that same watershed. These relationships can then be used to set targets for stream phosphorus concentrations to achieve desired conditions in lakes.

Lester L. Yuan

Michael J. Paul

JAWRA Journal of the American Water Resources Association

JAWRA 力求成为关于多学科水资源问题的杰出学术出版物。 JAWRA 论文提出了来自多个学科的观点，这些观点交织在一起，以深入了解关键的水问题，或者主要基于对其他学科有重要应用的单一学科。论文通常涵盖最近 AWRA 会议的主题，例如河岸生态学、地理信息系统、适应性管理和水资源政策。JAWRA 作者向更广泛的受众介绍其学科领域内的工作。我们的副主编和审稿人反映了这种多样性，以确保对广泛的主题进行知识渊博和公平的审查。我们特别鼓励提交能够传达读者可以使用的“带回家的信息”的论文。

The Journal of the American Water Resources Association aims to be a leading academic publication on multidisciplinary water resource issues. The papers published in this journal present perspectives from various disciplines, interwoven to provide a deeper understanding of critical water issues, or primarily based on a single discipline with significant applications to others. The papers typically cover topics from recent AWRA conferences, such as riparian ecology, geographic information systems, adaptive management, and water resource policy. Authors in JAWRA present their work to a broader audience within their fields. Our associate editors and reviewers reflect this diversity to ensure knowledgeable and fair reviews of a wide range of topics. We particularly encourage submissions that convey 'take-home messages' that readers can apply.

《Journal of the American Water Resources Association》致力于成为多学科水资源问题的杰出学术出版物。该期刊的论文汇集了来自不同学科的观点，旨在深入理解关键水资源问题，或基于对其他学科有重要应用的单一学科。论文通常涵盖最近AWRA会议的主题，如河岸生态学、地理信息系统、适应性管理和水资源政策。JAWRA的作者向更广泛的受众介绍其学科领域的研究成果。我们的副主编和审稿人反映了这种多样性，以确保对广泛主题的知识渊博和公正的审查。我们特别鼓励提交能够传达给读者“带回家的信息”的论文。

Category	Quartile
环境科学与生态学	4
环境科学与生态学, 工程环境	4
环境科学与生态学, 地球科学综合	4
环境科学与生态学, 水资源	4

Predicting lake chlorophyll from stream phosphorus concentrations

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Journal Info

Category	Quartile
WATER RESOURCES	2