Rainfall and groundwater use in rural Kenya.

Rainfall and groundwater use in rural Kenya.
复制标题

肯尼亚农村地区的降雨量和地下水利用。

DOI:
10.1016/j.scitotenv.2018.08.330
复制
发表时间:
2019
期刊:
The Science of the total environment
影响因子:
--
通讯作者:
Thomson P
Thomson P
中科院分区:
--
文献类型:
--
作者:
Thomson P

文献摘要

参考文献

被引文献

相似文献

本研究探讨降雨和地下水利用在肯尼亚农村之间的关系,使用自动传输的每小时的数据从手泵(n= 266),每日降雨量记录(n= 19),和家庭调查数据(n= 2508)。我们证明了34%的减少,在雨季的地下水使用相比,旱季,这表明一个很大的转变,从改善到未改善的来源,在雨季。通过互相关的手泵和降雨时间序列,我们还揭示了大量的短期变化,在地下水抽水观测紧接着强降雨。进一步的调查和建模显示,在紧接着大雨的那一天,水泵的使用量减少了68%。然后,我们调查了这种对降雨的行为反应的原因,使用调查数据来研究水泵使用量减少最明显的地区的家庭的特征、关注点和行为。在这个地区,雨水收集很普遍,只有6%的家庭报告说,手泵是他们在雨季的唯一饮用水来源,而在旱季,这一比例为86%。这些研究结果揭示了降雨量变异性增加可能对“人人普遍和公平地获得安全和负担得起的饮用水”的可持续发展目标产生的影响。具体来说,我们提出了一个缺陷,在水政策的假设,即提供改善的饮用水源,在这种情况下,社区手泵转化为一致的使用和相关的健康效益。我们注意到,不了解和说明实际用水行为可能会导致不利的公共卫生结果和不适应的WASH政策和干预措施。
This study examines the relationship between rainfall and groundwater use in rural Kenya, using automatically-transmitted hourly data from handpumps (n= 266), daily rainfall records (n= 19), and household survey data (n= 2508). We demonstrate a 34% reduction in groundwater use during the wet season compared to the dry season, suggesting a large shift from improved to unimproved sources in the wet season. By cross-correlating handpump and rainfall time series, we also reveal substantial short-term changes in groundwater pumping observed immediately following heavy rainfall. Further investigation and modelling of this response reveals a 68% reduction in pump use on the day immediately following heavy rain.We then investigate reasons for this behavioural response to rainfall, using survey data to examine the characteristics, concerns and behaviours of households in the area where the reduction in pump use was most marked. In this area rainwater harvesting was widespread and only 6% of households reported handpumps as their sole source of drinking water in the wet season, compared to 86% in the dry season. These findings shed light on the impact increasing rainfall variability may have on the Sustainable Development Goal of “universal and equitable access to safe and affordable drinking water for all”. Specifically, we suggest a flaw in the water policy assumption that the provision of improved sources of drinking water—in this case community handpumps—translates to consistent use and the associated health benefits. We note that failure to understand and account for actual water use behaviour may results in adverse public health outcomes and maladapted WASH policy and interventions.
DOI: 10.1002/2017wr021047
发表时间: 2017-11-01
影响因子: 5.4
作者:
Elliott, Mark;MacDonald, Morgan C.;Hadwen, Wade L.
通讯作者: Hadwen, Wade L.
要通过水质干预措施实现健康收益,必须高度坚持
DOI: --
发表时间: 2012
期刊: PLoS ONE
影响因子: 3.7
作者:
Joe Brown;T. Clasen
通讯作者: T. Clasen
屋顶集水区雨水水质的变化
DOI: --
发表时间: 1989
期刊:
影响因子: --
作者:
M. I. Yaziz;H. Gunting;N. Sapari;A. Ghazali
通讯作者: A. Ghazali
DOI: 10.1111/j.1752-1688.2002.tb04349.x
发表时间: 2002-10-01
影响因子: 2.4
作者:
Lye, DJ
通讯作者: Lye, DJ
DOI: 10.1046/j.1365-2672.94.s1.5.x
发表时间: 2003-01-01
影响因子: 4
作者:
Hunter, PR
通讯作者: Hunter, PR