Alexander Kelly T, Tesfaye Yihenew, Dreibelbis Robert, Abaire Bekele, Freeman Matthew C
Department of Environmental Health, Emory University, Atlanta, USA.
Department of Anthropology, Oregon State University, Corvallis, USA.
Int J Public Health. 2015 Dec;60(8):977-86. doi: 10.1007/s00038-015-0675-x. Epub 2015 Apr 30.
A key challenge for achieving universal water access in Sub-Saharan Africa is poor sustainability of water schemes. Previous studies have posited factors that may lead to failed schemes; however, empirical data are lacking.
We conducted direct observations of water sources and interviewed water committee members about governance in two regions of Ethiopia. Based on direct observation at each water point, and harmonizing previous research in the sector, we developed an ordinal measure of functionality. Among functional systems, linear regression models were used to assess changes in score or level of functionality against governance characteristics.
Of 89 water schemes over 5 years old, 82 had sufficient data to receive a score. Higher functionality scores were associated with having good records, meeting regularly, financial audits, higher monthly fees, a paid caretaker and water committees with capacity to perform minor repairs.
Our continuous measure of functionality was simple to derive, objective and may be widely applicable for further studies assessing key indicators of sustainability.
在撒哈拉以南非洲实现普遍供水面临的一个关键挑战是供水计划的可持续性较差。以往的研究提出了可能导致计划失败的因素;然而,缺乏实证数据。
我们对埃塞俄比亚两个地区的水源进行了直接观察,并就治理情况采访了水委会成员。基于在每个供水点的直接观察,并结合该领域先前的研究,我们制定了一个功能的有序度量。在功能系统中,使用线性回归模型来评估功能得分或水平相对于治理特征的变化。
在89个运行超过5年的供水计划中,82个有足够的数据来获得一个分数。较高的功能得分与有良好记录、定期开会、财务审计、较高的月费用、有薪酬的管理员以及有能力进行小修小补的水委会有关。
我们对功能的连续度量易于得出,客观且可能广泛适用于进一步评估可持续性关键指标的研究。