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首页> 外文期刊>Environmental Science & Technology >Outdoor Residential Water Use Restrictions during Recent Drought Suppressed Disease Vector Abundance in Southern California
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Outdoor Residential Water Use Restrictions during Recent Drought Suppressed Disease Vector Abundance in Southern California

机译：南加州最近干旱抑制疾病传染媒介丰富的户外住宅用水限制

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摘要

The California state government put restrictions on outdoor residential water use, including landscape irrigation, during the 2012-2016 drought. The public health implications of these actions are largely unknown,particularly with respect to mosquito-borne disease transmission. While residential irrigation facilitates persistence of mosquitoes by increasing the availability of standing water, few studies have investigated its effects on vector abundance. In two study sub-regions in the Los Angeles Basin, we examined the effect of outdoor residential water use restrictions on the abundance of the most important regional West Nile virus vector, Culex quinquefasciatus. Using spatiotemporal random forest models fit to Cx abundance during drought and non-drought years, we generated counterfactual estimates of Cx abundance under a hypothetical drought scenario without water use restrictions. We estimate that Cx abundance would have been 44% and 39% larger in West Los Angeles and Orange counties, respectively, if outdoor water usage had remained unchanged. Our results suggest that drought,without mandatory water use restrictions, may counterintuitively increase the availability of larval habitats for vectors in naturally dry,highly irrigated settings and such mandatory water use restrictions may constrain Cx. abundance, which could reduce the risk of mosquito-borne disease while helping urban utilities maintain adequate water supplies.
机译：加州州政府在2012 - 2016年干旱期间对户外住宅用水限制，包括景观灌溉。这些行动的公共卫生影响主要是未知的，特别是对于蚊子传播的疾病传播。虽然住宅灌溉促进蚊子的持久性通过提高脱水的可用性，但很少有研究已经研究了对传染症丰度的影响。在洛杉矶盆地的两项研究中，我们研究了户外住宅用水限制对最重要的区域西尼罗病毒载体，Culex Quinquefasciatus的影响。在干旱和无干旱期间使用时空随机森林模型适合CX丰富，我们在假设干旱场景下产生了CX丰度的反事实估计，没有用水限制。如果户外用水量保持不变，我们估计西洛杉矶和橙县的CX丰度分别为44％和39％。我们的结果表明，无强制性用水限制的干旱可能会违反天然干燥，高度灌溉环境中幼虫栖息地的可用性，并且这种强制性用水限制可能会限制CX。丰富，这可能降低蚊虫病的风险，同时帮助城市公用事业维持充足的水供应。

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  • 来源
    《Environmental Science & Technology》 |2021年第1期|478-487|共10页
  • 作者

    Abinash Bhattachan; Nicholas K. Skaff; Amanda M. Irish; Solomon Vimal; Justin V. Remais; Dennis P. Lettenmaier;

  • 作者单位

    Department of Earth and Environmental Sciences California State University East Bay Hayward California 94542 United States Department of Geography University of California Los Angeles Los Angeles California 90095 United States;

    Division of Environmental Health Sciences School of Public Health University of California Berkeley Berkeley California 94720 United States;

    Department of Epidemiology and Biostatistics School of Medicine University of California San Francisco San Francisco California 94158 United States;

    Department of Geography University of California Los Angeles Los Angeles California 90095 United States;

    Division of Environmental Health Sciences School of Public Health University of California Berkeley Berkeley California 94720 United States;

    Department of Geography University of California Los Angeles Los Angeles California 90095 United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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