CONFERENCE PROPOSAL: WETLANDS MITIGATING HARMFUL ALGAL BLOOMS

这笔赠款部分用于支持一个关于湿地减轻水质问题的讲习班。研讨会将于2019年8月3日在俄亥俄州中北部的伊利湖岸边举行。研讨会将介绍俄亥俄州和佛罗里达州南部正在进行的湿地养殖实验的早期研究成果、湿地在减轻藻类毒性方面的作用、目前大规模湿地恢复和创建湿地以控制水质的研究，以及教科文组织波兰实验室关于处理有害藻华的生态水文方法的研究。需要采用景观尺度的方法，将雨水和受污染的河流和沟渠中的营养物质的湿地保留与将这些营养物质返回农业生产的循环机制结合起来，从而减少下游的富营养化，包括有害的藻华和缺氧，同时减少农业生产对额外施肥的需求。高营养景观中的处理湿地整合了粮食（农业生产）、能源（以太阳能为基础的生态系统取代以化石燃料为基础的处理系统）和水（水质改善）。伊利湖的西部盆地将会是几场演讲的主题，也可能是我们研讨会上大部分讨论的主题。在过去的七年里，它遭受了广泛的夏末藻华，从2011年伊利湖有记录以来最大的藻华开始，并导致2014年俄亥俄州托莱多市的供水完全关闭。随后，2017年伊利湖发生了最广泛的藻华之一。为了减少流入伊利湖西部盆地的营养物质，俄亥俄州西北部的一些前黑沼泽现已被提议恢复。在尝试这种规模的修复可行性之前，需要进行许多科学调查。在这片原湿地景观中，需要进行湿地设计研究，以及湿地培育方法在该地区是否有效。本次研讨会将侧重于确定和阐明所需的研究需求。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This grant is in partial support of a workshop on wetlands mitigating water quality problems. The workshop will be held on August 3, 2019 on the shores of Lake Erie in north central Ohio, The workshop will include presentations on early research results from ongoing wetlaculture experiments in Ohio and south Florida, the role of wetlands in mitigating algal toxicity, current studies of large-scale wetland restoration and creation of wetlands for water quality control, as well as studies by a UNESCO lab in Poland on ecohydrological approaches to dealing with harmful algal blooms. Landscape-scale approaches are needed that integrate wetland retention of nutrients from stormwater and polluted rivers and ditches with a recycling mechanism that will return those nutrients to agricultural production, thereby decreasing downstream eutrophication, including harmful algal blooms and hypoxia, while reducing the requirements for additional fertilization for agricultural production.Treatment wetlands in high-nutrient landscapes integrate food (agricultural production), energy (solar-based ecological systems replacing fossil-fuel-based treatment systems) and water (water quality improvement. The western basin of Lake Erie will be the feature of several of the presentations and probably most of the discussion at our workshop. It has suffered extensive late summer algal blooms for the past seven years, starting with the then-largest recorded algal bloom in Lake Erie in 2011 and leading to a total shutdown of the Toledo Ohio water supply in 2014. Subsequently, one of the most extensive algal blooms occurred in 2017 in Lake Erie. Restoration of some of the former Black Swamp of northwestern Ohio has now been proposed for the strategic purpose of reducing nutrient inflows to the western basin of Lake Erie. There are many scientific inquiries that need to be implemented before the feasibility of a restoration on this scale can be attempted. Research is needed on wetland design in this former-wetland landscape, and on whether the wetlaculture approach would work well in this region. This workshop will focus on identifying and articulating the required research needs.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.