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Evaluating the ecological potential of constructed wetlands: A case study of the Brighton treatment wetland.

机译：评价人工湿地的生态潜力：以布莱顿处理湿地为例。

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摘要

Constructed wetlands for municipal wastewater treatment fulfill habitat needs of wildlife. This study is the first attempt to characterize the macroinvertebrate community in an Ontario treatment wetland. It consists of a baseline survey of benthic fauna from a tertiary treatment wetland in Brighton, Canada. Macroinvertebrate community indicators including diversity, abundance and functional feeding groups were compared between (a) treatment wetland cells with and without emergent vegetation and (b) the treatment wetland and three natural reference wetlands. Macroinvertebrate data were collected by kick and sweep sampling and Hester Dendy samplers. Environmental parameters were compared with macroinvertebrate findings. Non-metric multi-dimensional scaling and permutational analysis of variance were used to explore separations of both environmental variables and macroinvertebrate communities. The higher diversity of macroinvertebrates in the treatment wetland cell with emergent vegetation contrasted with the open water cell's abundant but less diverse community. Natural wetlands had more than twice the stem density as treatment wetlands and at least twice the number of taxa. Shallow water depths, more dissolved oxygen, and lower ammonia and conductivity levels contributed to the higher ecological potential of natural wetlands. Aeration, emergent plant harvesting and hydrologic alterations are explored as methods to help raise the ecological potential of treatment wetlands.; Keywords. Hester Dendy, macroinvertebrate, NMDS, treatment wetland, hemi-marsh, ecological potential, PERMANOVA.
机译：用于市政废水处理的人工湿地可满足野生生物的栖息地需求。这项研究是表征安大略治疗湿地中大型无脊椎动物群落的首次尝试。它包括来自加拿大布莱顿第三纪处理湿地底栖动物的基线调查。比较了（a）有无植被的处理湿地细胞与（b）处理湿地和三个自然参考湿地之间的大型无脊椎动物群落指标，包括多样性，丰度和功能性摄食组。大型无脊椎动物数据是通过踢扫和扫掠采样以及Hester Dendy采样器收集的。将环境参数与无脊椎动物的发现进行比较。非度量多维标度和方差的排列分析被用来探索环境变量和大型无脊椎动物群落的分离。与裸露的水细胞丰富但多样性较低的群落相比，处理后的湿地细胞中具有新兴植被的大型无脊椎动物多样性更高。天然湿地的茎密度是处理湿地的两倍以上，至少是分类单元数目的两倍。浅水深度，更多的溶解氧以及较低的氨和电导率水平有助于自然湿地的更高生态潜力。研究了通气，紧急植物收获和水文改变，以帮助提高处理湿地的生态潜力。关键字。 Hester Dendy，大型无脊椎动物，NMDS，处理湿地，半沼泽，生态潜力，PERMANOVA。

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  • 作者

    McGauley, Erin K.;

  • 作者单位

    Trent University (Canada).;

  • 授予单位 Trent University (Canada).;
  • 学科 Biology Ecology.
  • 学位 M.Sc.
  • 年度 2008
  • 页码 103 p.
  • 总页数 103
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生态学（生物生态学）;
  • 关键词

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