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Developing reference criteria for the ecological status of West African rivers

机译：制定西非河流生态状况的参考标准

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摘要

Awareness of sustainable management of water and its biological resources is rising in West Africa, but application of effective tools for biomonitoring and detecting habitats at risk in aquatic ecosystems is limited. In this study, we provide key environmental descriptors to characterize reference sites by applying the following "a priori criteria" (physical and chemical, hydro-morphological, and land use parameters) by exploring their potential to determine suitable reference sites. Using data collected from 44 sites, we identified 37 criteria that reliably identify reference conditions in semi-arid rivers by reflecting the impacts of multiple pressures ranging from low to very high intensity of human uses and impairments. We integrated all these impacts in an overall pressures index, which showed that protected areas can reasonably be considered as credible reference sites as far as they show low overall impact levels from cumulative pressures. We recommend that development of bio-indicator standards should be based on the collection and integration of all the available information, especially quantitative, spatially-explicit data, from benthic macroinvertebrates and fish. Rigorous standardization of bio-indicator protocols will make them more easily applicable for management and conservation of aquatic ecosystem resources in semi-arid zones of Africa.
机译：西非对水及其生物资源的可持续管理的意识正在提高，但是在生物监测和发现水生生态系统中处于危险中的栖息地方面，有效工具的应用受到限制。在这项研究中，我们通过应用以下“先验标准”（物理和化学，水文形态和土地利用参数），通过探索潜在的环境描述符来确定合适的参考地点，从而提供了关键的环境描述符。利用从44个站点收集的数据，我们确定了37条标准，这些标准通过反映从低到高强度的人类使用和损害等多种压力的影响，可靠地确定了半干旱河流的参考条件。我们将所有这些影响整合到总体压力指数中，该指数表明，只要保护区显示出来自累积压力的总体影响水平较低，就可以合理地将保护区视为可靠的参考点。我们建议生物指标标准的制定应基于对底栖大型无脊椎动物和鱼类的所有可用信息，尤其是定量的，空间明晰的数据的收集和整合。生物指标规程的严格标准化将使它们更容易适用于非洲半干旱地区的水生生态系统资源的管理和保护。

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  • 来源
    《Environmental Monitoring and Assessment》 |2018年第1期|2.1-2.17|共17页
  • 作者

    Kabore Idrissa; Moog O.; Oueda A.; Sendzimir J.; Ouedraogo R.; Guenda W.; Melcher A. H.;

  • 作者单位

    Univ Ouaga I Prof Joseph Ki Zerbo, LBEA, Ouagadougou, Burkina Faso;

    BOKU Univ Nat Resources & Life Sci, Inst Hydrobiol & Aquat Ecosyst Management, Ctr Dev Res, Vienna, Austria;

    Univ Ouaga I Prof Joseph Ki Zerbo, LBEA, Ouagadougou, Burkina Faso;

    IIASA, Laxenburg, Austria;

    Ministere Rech Sci & Innovat, Inst Environm & Rech Agr INERA, Ouagadougou, Burkina Faso;

    Univ Ouaga I Prof Joseph Ki Zerbo, LBEA, Ouagadougou, Burkina Faso;

    BOKU Univ Nat Resources & Life Sci, Inst Hydrobiol & Aquat Ecosyst Management, Ctr Dev Res, Vienna, Austria;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Multiple pressures; Reference conditions; Arid; Rivers;

    机译：多重压力;参考条件;干旱;河;

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