Ecologists typically associate water quality with trophic status, where oligotrophic is considered excellent and presumably provides more aquatic ecosystem services. However, water quality is perceived differently among observers with different worldviews. For example, agriculture and public health sectors quantify the provisioning of aquatic ecosystem services on the basis of different guidelines, but are their guidelines breached more frequently with increasing productivity? We developed an integrative ecosystem service framework using Canadian guidelines as thresholds for drinking, swimming, irrigation, suitability for livestock and aquatic wildlife in rivers. Drinkability was the most sensitive ecosystem service, met in 23% of the sampling events, whereas livestock was provided in 99%. Trophic status is a fair proxy for ecosystem services limited by fecal contamination, because nutrients are related to human and animal populations but not to those limited by metals. Using guideline thresholds to assess the safe provisioning of multiple aquatic ecosystem services across diverse worldviews could facilitate understanding among different perspectives.

中文翻译：

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根据准则评估营养状况作为水生生态系统服务供应的代理

生态学家通常将水质与营养状态联系起来，在营养状态中，贫营养被认为是极好的，并且可以提供更多的水生生态系统服务。但是，在具有不同世界观的观察者中，水质的看法不同。例如，农业和公共卫生部门根据不同的准则对水生生态系统服务的提供进行量化，但是随着生产力的提高，它们的准则是否被更频繁地违反？我们使用加拿大指南作为饮用水，游泳，灌溉，对牲畜和河流中水生野生生物的适宜性的阈值，开发了一个综合的生态系统服务框架。饮用性是最敏感的生态系统服务，在23％的采样事件中得到满足，而在99％的采样中提供了牲畜。营养状态是受粪便污染限制的生态系统服务的公平代表，因为营养与人类和动物种群有关，而与受金属限制的物质无关。使用准则阈值评估跨不同世界观的多种水生生态系统服务的安全提供可以促进不同观点之间的理解。