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Groundwater recharge estimation using water table fluctuation and empirical methods 基于地下水位波动和经验方法的地下水补给估算
IF 2.1 Q2 Environmental Science Pub Date : 2022-08-12 DOI: 10.2166/h2oj.2022.026
Meseret B. Addisie
The reliable estimation of groundwater recharge is fundamental to the appropriate use of groundwater resources. Shallow groundwater resource quantification for irrigation in highland regions remains challenging. Specifically, in the humid Ethiopian highlands, only limited research has been done on groundwater recharge estimation. Despite the various techniques used to determine recharge, the objective of this study was to better understand natural groundwater recharge using water table fluctuation (WTF) and empirical methods in the sub-humid Ethiopian highlands. The Ene-Chilala watershed was selected for this study. Precipitation, infiltration rate, and piezometric water levels were measured. Precipitation was measured over a 4-year period (2013–2016), whereas infiltration and the groundwater table were measured over a 1-year period (2014). Recharge rates using WTF were determined from the three slope positions and the median of all piezometers for the whole watershed. Infiltration rates on the upslope were greater compared to the mid- and downslopes. The rainfall intensity exceeded the infiltration rate in all slope positions, so the excess rainfall recharged the perched upslope aquifer and eventually drained as interflow to recharge the mid- and downslopes. The estimated groundwater recharge from WTF was less compared to the average of empirical estimations. Surprisingly, from the nine selected empirical equations, the modified Chaturvedi formula had a similar estimation to the WTF method. In conclusion, it is challenging to find long-term seasonal and spatial groundwater-level data. Long-term groundwater data should, therefore, be available in order to arrive at a reliable recharge estimate and for effective groundwater management practices.
地下水补给的可靠估计是适当利用地下水资源的基础。高地地区灌溉浅层地下水资源的量化仍然具有挑战性。具体而言,在潮湿的埃塞俄比亚高地,对地下水补给估算的研究有限。尽管使用了各种技术来确定补给,但本研究的目的是利用地下水位波动(WTF)和经验方法更好地了解埃塞俄比亚亚湿润高地的自然地下水补给。本研究选择Ene Chilala流域。测量了降水量、渗透速率和测压水位。降水量是在4年期间(2013-2016)测量的,而渗透和地下水位是在1年期间(2014)测量的。使用WTF的补给率是根据整个流域的三个斜坡位置和所有测压计的中值确定的。上坡的入渗率高于中下坡。所有斜坡位置的降雨强度都超过了渗透率,因此多余的降雨重新补给了上层滞洪含水层,并最终以交互流的形式排出,以补给中下游。与经验估算的平均值相比,WTF估算的地下水补给量较小。令人惊讶的是,从九个选定的经验方程中,修正的查图维迪公式与WTF方法具有相似的估计。总之,寻找长期的季节性和空间性地下水位数据具有挑战性。因此,应提供长期地下水数据,以便得出可靠的补给估计数和有效的地下水管理做法。
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引用次数: 0
Local leadership development and WASH system strengthening: insights from Cambodia 地方领导发展和加强讲卫生系统:来自柬埔寨的见解
IF 2.1 Q2 Environmental Science Pub Date : 2022-08-11 DOI: 10.2166/h2oj.2022.129
Tum Nhim, C. Mcloughlin
To accelerate progress towards achieving the Sustainable Development Goal on clean water and sanitation, the focus of WASH programming in developing countries has shifted from a traditional infrastructure approach to a more systems-based approach. Greater emphasis on a systems approach has also drawn attention to the significant role played by local leadership in developing sustainable WASH systems. Building on the evidence of the effectiveness of leaders trained through the Civic Champions Program, an innovative leadership development program in Cambodia, this article examines leaders' characteristics and explores how participating in the program affected their capacity, skills, and perceptions of leadership. Crucially, it seeks to understand the extent to which participants in the Civic Champions Program differ from comparable local leaders along these dimensions. By combining survey data with qualitative analysis, the paper identifies how localization enhances the effectiveness of leaders in promoting sanitation, including working through and strengthening pre-existing institutional arrangements and adapting promotion strategies to different audiences. In this way, the article demonstrates how non-prescriptive programs that tap into the legitimizing potential of local leaders may contribute to addressing sanitation challenges and ultimately to WASH system strengthening.
为了加快实现关于清洁水和卫生设施的可持续发展目标的进展,发展中国家的讲卫生计划的重点已从传统的基础设施方法转向更加以系统为基础的方法。更加强调系统方法也使人们注意到地方领导在发展可持续的讲卫生系统方面所发挥的重要作用。通过柬埔寨的创新领导力发展项目“公民冠军项目”(Civic Champions Program)培训的领导者的有效性,本文考察了领导者的特征,并探讨了参与该项目如何影响他们的能力、技能和对领导力的看法。至关重要的是,它试图了解公民冠军计划的参与者与可比的地方领导人在这些方面的差异程度。通过将调查数据与定性分析相结合,本文确定了本地化如何提高领导者在促进卫生设施方面的有效性,包括通过和加强现有的制度安排,并根据不同的受众调整推广策略。通过这种方式,本文展示了利用地方领导人合法化潜力的非规范性方案如何有助于解决卫生挑战,并最终加强WASH系统。
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引用次数: 1
Household behavioral intention, environmental habit and attitude related to efficient water management: an empirical analysis on pro-environmental behavior among urban residents 家庭行为意愿、环境习惯和态度与高效水资源管理:城市居民亲环境行为的实证分析
IF 2.1 Q2 Environmental Science Pub Date : 2022-08-09 DOI: 10.2166/h2oj.2022.014
K. Sarpong, Gordon Amankwaa
The management of water utilities in urban contexts, which are particularly prone to water shortages and where future water security is of the utmost importance, has become a challenging task for the majority of municipal and regional planners. The present study attempts to evaluate how environmental knowledge and values influence possible pro-environmental behavior with respect to household water consumption behavior, attitudes, and habits among 500 (n=313) urban dwellers in an urban setting in Jiangsu Province, China. We adapted the Theory of Planned Behavior (TPB) to elucidate pro-environmental behaviors while exploratory factor and Spearman correlation analysis were applied to datasets elicited from respondents. The study establishes important positive correlations using Spearman's rank (r=0.50) based on the findings of our empirical analysis, which suggest that individuals with strong environmental values and rich environmental knowledge are more likely to exhibit behaviors, attitudes and habits that result in effective household water use and management. Additionally, based on the magnitude of the factor loadings, the key results from principal factor analysis were as follows: efficient household water consumption is contingent on fixing household leaks (0.73) and replacing old shower fixtures and water-using appliances (0.66). Nevertheless, China's water resources are insufficient and require efficient management (0.66), the quality of tap water supplies is compromised and cannot be trusted (0.66) and there has been little to no improvement in water quality and availability in the past 10 years in China (0.69). This research reinforces the role of knowledge in shaping behavior, and has policy effects and could serve as a benchmark for measures to reduce household water use.
在城市环境中,特别容易缺水,而且未来的水安全是最重要的,对这些环境中的供水设施的管理已成为大多数市政和区域规划者的一项具有挑战性的任务。本研究试图评估环境知识和价值观如何影响中国江苏省500名(n=313)城市居民在家庭用水行为、态度和习惯方面可能的亲环境行为。本研究采用计划行为理论(Theory of Planned Behavior, TPB)来解释亲环境行为,并采用探索性因子和Spearman相关分析对调查对象的数据集进行分析。基于我们的实证分析结果,研究使用Spearman秩(r=0.50)建立了重要的正相关关系,这表明具有强烈环境价值观和丰富环境知识的个体更有可能表现出导致有效家庭用水和管理的行为,态度和习惯。此外,根据因子负荷的大小,主因子分析的关键结果如下:有效的家庭用水取决于修复家庭泄漏(0.73)和更换旧的淋浴装置和用水器具(0.66)。然而,中国的水资源不足,需要有效的管理(0.66),自来水供应的质量受到损害,不可信(0.66),在过去10年里,中国的水质和可用性几乎没有改善(0.69)。这项研究强化了知识在塑造行为方面的作用,具有政策效应,可以作为减少家庭用水措施的基准。
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引用次数: 1
Working with local governments to increase access to WASH services: a case of WaterAid's participatory approaches in Nigeria 与地方政府合作,增加获得WASH服务的机会:水援助组织在尼日利亚的参与式方法案例
IF 2.1 Q2 Environmental Science Pub Date : 2022-07-14 DOI: 10.2166/h2oj.2022.061
Y. Tariya, A. Murray, C. Okereke
Attempts to implement participatory processes are often complicated by realities which make objectives of participation unattainable. Hence, if participation is to mean more than good intentions, it is vital to understand the strategies deployed by international nongovernmental organisations (INGOs) in participatory development. This study employed a qualitative case-study approach to evaluate the participatory processes employed in two WASH projects implemented by WaterAid Nigeria attempting work with Local Government Areas: the Sustainable Total Sanitation project and the HSBC Water programme. WaterAid Nigeria's participatory development approach recognises the responsibility of the various tiers of government for its citizens' wellbeing, especially the need for partnership with the Local Government Area (LGA) towards the delivery of WASH services. The state, as the ‘duty bearer’, is responsible for the provision of WASH services. Thus, both projects centred on government capacity building and community empowerment through the establishment and capacity development of WASH units in LGAs, insistence on counterpart funding and the establishment of water, sanitation and hygiene committees (WASHCOMs). Despite these attempts, findings highlighted the persistence of inefficiencies within the LGA WASH system that rendered partnerships ineffective. At the community level, WASHCOMs were not sustainable. Despite the challenges of implementing partnerships between INGOs and LGAs, such partnership remains a way to improve the provision of WASH services in Nigeria and other low- and middle-income countries. To better work within the participatory model, WASH INGOs should explore how to better use existing LGA arrangements for service delivery. Additionally, the LGA, as a duty bearer, could foster genuine, non-discriminatory spaces for the participation of communities by taking political, socio-economic and cultural differences into account.
执行参与性进程的努力往往因现实情况而复杂化,使参与的目标无法实现。因此,如果参与不仅仅意味着善意,那么理解国际非政府组织(ingo)在参与性发展中部署的战略至关重要。本研究采用定性案例研究方法,评估尼日利亚水援助组织与地方政府合作实施的两个讲卫生项目(可持续全面卫生项目和汇丰水方案)所采用的参与性过程。尼日利亚水援助组织的参与式发展方法认识到各级政府对其公民福祉的责任,特别是需要与地方政府地区(LGA)合作提供WASH服务。国家作为“义务承担者”,负责提供WASH服务。因此,这两个项目都以政府能力建设和社区赋权为中心,通过在地方政府建立和发展讲卫生单位,坚持对等资金和建立水、环境卫生和个人卫生委员会(WASHCOMs)。尽管进行了这些尝试,但调查结果突出表明,LGA WASH系统内的低效率持续存在,导致伙伴关系无效。在社区一级,wash - com是不可持续的。尽管在实施非政府组织和地方政府之间的伙伴关系方面存在挑战,但这种伙伴关系仍然是改善尼日利亚和其他中低收入国家提供讲卫生服务的一种方式。为了更好地在参与式模式下开展工作,WASH非政府组织应探讨如何更好地利用现有的地方政府服务安排来提供服务。此外,地方政府作为一个责任承受者,可以通过考虑到政治、社会经济和文化差异,为社区的参与创造真正的、非歧视性的空间。
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引用次数: 1
A systems approach to improving access to water, sanitation, and hygiene (WASH) in schools in Odisha, India 改善印度奥里萨邦学校水、环境卫生和个人卫生(WASH)获取的系统方法
IF 2.1 Q2 Environmental Science Pub Date : 2022-06-15 DOI: 10.2166/h2oj.2022.044
Narendra Singh Chouhan, Monika Oledzka Nielsen, Pratibha Singh, Swathi Manchikanti, Vivek Pandey, J. Walters, Karishma Kadyan
As part of the humanitarian response to create an enabling environment for children at schools, and to contribute to achieving Sustainable Development Goals (SDGs) 1, 3, 4, and 6, UNICEF India envisages improving water, sanitation, and hygiene (WASH) facilities in schools. In 2019, UNICEF in partnership with the Government of Odisha rolled out a systems approach to WASH for 58,000 schools to improve equitable access to safe WASH facilities in schools and to address any gaps that may exist. Schools were assessed through a digital monitoring application and ranked on 39 benchmarks for WASH facilities and practices. Approximately 13,000 schools were ranked as 1 and 2 stars on a 5-star scale (with 5-star being the best), which necessitated structuring schedules for improvement throughout the year. The systems approach to strengthening key building blocks was followed through including advocacy for policy and planning, infrastructure improvement, leveraging finances, capacity building, behavior change, institutional strengthening, accountability, and monitoring. School Swachhata (cleanliness) Action Plans (SAPs) were developed for more than 5,000 schools, and necessary behavior change is being encouraged by involving school management committees and by instituting child cabinets of student leaders as role models to promote positive WASH behaviors among others. The complex interconnection between stakeholders was assessed using the social network analysis to highlight the level of interaction and stakeholder roles that guided the success of the Odisha WASH program to guide future WASH in school programs in Odisha and other states in India. Overall, the study findings suggest that the Odisha WASH program's success is owed, in part, to a diverse and multi-layered coordination structure between the district, block, and community-level stakeholders.
作为为学校儿童创造有利环境并为实现可持续发展目标1、3、4和6做出贡献的人道主义应对措施的一部分,联合国儿童基金会印度办事处设想改善学校的水、环境卫生和个人卫生设施。2019年,联合国儿童基金会与奥里萨邦政府合作,为5.8万所学校推出了一项讲卫生系统方法,以改善学校公平使用安全讲卫生设施的机会,并解决可能存在的任何差距。通过数字监测应用程序对学校进行了评估,并在39个讲卫生设施和做法基准上进行了排名。大约13000所学校被评为五星级的一星级和二星级(五星级是最好的),这就需要制定全年改进的时间表。通过倡导政策和规划、改善基础设施、利用资金、能力建设、行为改变、加强体制、问责制和监测,遵循了加强关键组成部分的系统方法。为5000多所学校制定了学校清洁行动计划(SAP),通过让学校管理委员会参与进来,并建立学生领袖儿童内阁作为榜样,促进积极的讲卫生行为等,鼓励必要的行为改变。使用社会网络分析评估了利益相关者之间的复杂相互关系,以强调互动水平和利益相关者的作用,这些互动水平和作用指导了奥迪沙讲卫生项目的成功,从而指导奥迪沙和印度其他邦未来的学校讲卫生项目。总体而言,研究结果表明,奥迪沙讲卫生项目的成功在一定程度上归功于地区、街区和社区层面利益相关者之间的多样性和多层次的协调结构。
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引用次数: 1
Scorecard diagnostic tool for the enabling regulatory environment of faecal sludge management 记分卡诊断工具,有利于粪便污泥管理的监管环境
IF 2.1 Q2 Environmental Science Pub Date : 2022-05-30 DOI: 10.2166/h2oj.2022.070
H. N. Mbogo, P. Home, J. Raude, R. W. Mwangi
Expeditious situational analysis of the enabling regulatory environment (ERE) of faecal sludge management (FSM) is vital for strengthening sanitation systems. However, existing diagnostic tools employ broad indicators, neglecting the detailed assessment of the policy, legal and institutional frameworks for each step along the FSM chain. This paper presents a web-based integrated diagnostic tool for evaluating the quality and adequacy of policy in guiding equity, targeting of resources, quality of service, financial considerations and institutional roles and responsibilities. The tool evaluates the legal framework based on laws, standards and regulations emphasizing on means of enforcement. It evaluates the institutional framework based on investors, service providers, regulators and consumers as guided by the literature. Each indicator is assigned a score of 1: green (effective), 0.5: yellow (limited) and 0: red (poor) for the user interface, containment, emptying, transport, treatment, disposal and reuse of faecal sludge. Built on Laravel Framework Hypertext Preprocessor (PHP), the tool links the scores into a single index averaged into terciles as 0–0.33 (poor), 0.34–0.66 (limited) and 0.67–1 (effective). This helps to identify areas of priority in a given context. The tool successfully facilitated a participatory pilot study in Kenya based on individual stakeholders' opinion. However, the tool does not provide the specific details leading to a given score. Therefore, its application should precede a detailed evaluation of each indicator in order to generate specific details per indicator per step of FSM.
快速分析粪便污泥管理的有利监管环境对于加强卫生系统至关重要。然而,现有的诊断工具采用了广泛的指标,忽视了对密克罗尼西亚联邦链上每一步的政策、法律和体制框架的详细评估。本文提出了一个基于网络的综合诊断工具,用于评估政策在指导公平、资源目标、服务质量、财务考虑以及机构作用和责任方面的质量和充分性。该工具根据强调执行手段的法律、标准和条例评估法律框架。它以文献为指导,以投资者、服务提供商、监管机构和消费者为基础,对制度框架进行评估。每个指标在用户界面、容纳、排空、运输、处理、处置和粪便污泥再利用方面的得分分别为1:绿色(有效)、0.5黄色(有限)和0:红色(较差)。该工具建立在Laravel Framework超文本预处理器(PHP)上,将分数链接到一个单一指数中,平均分为0–0.33(较差)、0.34–0.66(有限)和0.67–1(有效)。这有助于确定特定背景下的优先领域。该工具成功地促进了在肯尼亚根据个别利益攸关方的意见进行的参与性试点研究。然而,该工具没有提供导致给定分数的具体细节。因此,它的应用应该先于对每个指标的详细评估,以便在FSM的每个步骤中生成每个指标的具体细节。
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引用次数: 1
Strengthening country-led water and sanitation services monitoring and data use for decision-making: lessons from WaterAid experience in four countries 加强国家主导的水和环境卫生服务监测和决策数据使用:水援助组织在四个国家的经验教训
IF 2.1 Q2 Environmental Science Pub Date : 2022-05-25 DOI: 10.2166/h2oj.2022.028
Kimbugwe Ceaser, Davis Tim, Goff Fraser, Greggio Ellen, Chanthet Sokhadeva, Kiap Benjamin
Water, sanitation, and hygiene (WASH) are fundamental human rights, of critical importance to health, education, wellbeing, and economic prosperity. To fulfil these human rights and drive progress towards universal and sustainable access to WASH services, government service-level monitoring processes and data use are vital for effective decision-making and accountability. Despite increasing sector efforts to improve WASH data access, there is limited evidence of this translating into effective data use to inform effective planning for equitable access and budgeting and of the factors affecting this. Four case studies where WaterAid has worked with national government and sector stakeholders to strengthen WASH monitoring processes in Uganda, Cambodia, Papua New Guinea (PNG), and Myanmar were analysed through an analytical framework to understand the impact of different factors and related system-strengthening activities towards outcomes of increased data coordination, timely and relevant data availability and data use to inform decision-making in WASH service delivery. The analysis highlighted that strengthening activities aiming at improving indicators, data collection and analysis, and the type of data collection and visualisation technology have a direct impact on improving WASH sector coordination and timely data availability. However, to ensure strengthening activities support data use for decision-making, they need to be developed from within and adapt to the on-going wider political economy systems evolution, including formal processes such as decentralisation and evolving informal political drivers.
水、环境卫生和个人卫生(WASH)是基本人权,对健康、教育、福祉和经济繁荣至关重要。为了实现这些人权并推动在普遍和可持续获得讲卫生服务方面取得进展,政府服务水平监测进程和数据使用对于有效决策和问责至关重要。尽管各部门加大努力改善WASH数据的获取,但有有限证据表明,这些努力转化为有效的数据使用,为公平获取和预算编制的有效规划提供信息,并了解影响这一点的因素。在四个案例研究中,水援助组织与国家政府和部门利益相关者合作,在乌干达、柬埔寨、巴布亚新几内亚(PNG)和缅甸加强了WASH监测进程,通过分析框架分析了不同因素和相关的系统加强活动对数据协调成果的影响,及时和相关的数据可用性和数据使用为WASH服务提供决策提供信息。分析强调,加强旨在改进指标、数据收集和分析以及数据收集类型和可视化技术的活动,对改善讲卫生部门的协调和及时提供数据有直接影响。然而,为了确保加强支持数据用于决策的活动,这些活动需要从内部发展,并适应正在进行的更广泛的政治经济系统演变,包括权力下放等正式进程和不断发展的非正式政治驱动因素。
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引用次数: 2
Accountability and advocacy interventions in the water sector: a global evidence review 水部门的问责制和倡导干预措施:全球证据审查
IF 2.1 Q2 Environmental Science Pub Date : 2022-05-19 DOI: 10.2166/h2oj.2022.062
N. Hepworth, T. Brewer, B. D. Brown, M. Atela, J. Katomero, J. Kones, M. Gashaw
This paper reports on a global review of evidence on the outcomes of accountability and advocacy interventions for improved water and sanitation service delivery, water resource management (WRM) sector governance, and the factors which influence their performance. Mapping current knowledge will help guide the community of practice, policy, and research working to strengthen water, sanitation, and hygiene (WASH) service delivery systems. We summarise the state of the evidence, key insights, and implications. Available evidence is relatively limited (151 papers) and is skewed towards India and East Africa (c. 50%), water service delivery (62%), and social accountability monitoring (54%). Most included articles (80%) associate accountability and advocacy with positive outcomes for sector performance. Positive outcomes are achieved through, for example, improved operational maintenance; access to data; representation and inclusion; political will; changes in policy, law, and process; new investment; and organisational performance. Impact is less frequently reported (32%) and attribution of impacts to interventions is a recurrent challenge. We identify 28 factors that determine the interventions' performance. These are used to populate a theory of change for accountability and advocacy interventions. The results of the review are important for those working on water sector system strengthening. They suggest potential of accountability interventions to accelerate delivery of the Sustainable Development Goals (SDGs) on WASH, and provide an organising framework to strengthen intervention design and delivery, and future research.
本文报告了一项关于问责制和宣传干预措施成果的全球审查,这些干预措施有助于改善水和卫生服务的提供、水资源管理部门治理,以及影响其绩效的因素。绘制当前知识图谱将有助于指导实践、政策和研究社区加强水、环境卫生和个人卫生(WASH)服务提供系统。我们总结了证据的状态、关键见解和含义。现有证据相对有限(151篇论文),偏向印度和东非(约50%)、供水服务提供(62%)和社会责任监督(54%)。大多数收录的文章(80%)将问责制和宣传与部门绩效的积极成果联系在一起。通过改善运营维护等措施取得了积极成果;获取数据;代表性和包容性;政治意愿;政策、法律和程序的变化;新增投资;以及组织绩效。影响的报告频率较低(32%),将影响归因于干预措施是一个经常性的挑战。我们确定了决定干预效果的28个因素。这些被用来填充问责制和宣传干预的变革理论。审查结果对那些致力于加强供水部门系统的人来说很重要。他们提出了问责制干预措施的潜力,以加快实现讲卫生运动的可持续发展目标,并为加强干预措施的设计和实施以及未来的研究提供了组织框架。
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引用次数: 2
Evidenced transformations: using data to demonstrate improvement in school-based access to water, sanitation and hygiene in Uttar Pradesh, India 有证据的转变:利用数据展示印度北方邦在学校获得水、环境卫生和个人卫生方面的改善情况
IF 2.1 Q2 Environmental Science Pub Date : 2022-05-18 DOI: 10.2166/h2oj.2022.060
Kumar Bikram, R. Mishra
The availability and access to water, sanitation and hygiene (WASH) facilities in schools have been associated with enhanced learning and nutritional outcomes among children in India and elsewhere. However, there is a limited documentation of successful scaled-up models to improve WASH facilities in schools. This paper describes an innovative ‘transformation campaign’ to strengthen WASH facilities in government-run elementary schools in Uttar Pradesh, the most populous state in India. The campaign was launched in 2018 followed by an online monitoring portal using data-informed feedback and role modeling in 2020. A comprehensive baseline assessment was conducted in 114,790 government elementary schools in Uttar Pradesh, during which school focal persons ranked their schools' access to WASH services against the set benchmarks. Concurrently, high-ranking schools were established as ‘learning labs’ for neighboring schools and were provided with on-site capacity building opportunities. More than 150,000 teachers were systematically engaged through regular virtual trainings and automated calls that tracked progress, all parts of a centralized online portal. This champion-led transformation of school (CLTS) approach was adopted by the government to recognize best practices supported by students and teachers. Initiatives of teachers and village-elected representatives (Gram Pradhan), who were identified as ‘champions’, were recognized and disseminated to build an enabling environment that will sustain access and practices. As of July 2021, 65.8% of the assessed schools across 75 districts have improved their basic infrastructure through repairing/retrofitting of defunct facilities and constructions of new ones as per the gaps identified. They become ‘WASH compliant’ and leveraged around INR 45.71 billion of public financing from multiple sources in last 3–4 years. Now, the state is rolling out a similar transformation campaign for 188,997 pre-school centers that will cover 5.6 million children between the ages of 3 and 6 years. The implementation process, challenges and learnings of this campaign can be used to formulate strategies and designing scaled-up interventions to improve WASH facilities in schools.
在印度和其他地方,学校提供和获得水、环境卫生和个人卫生设施与提高儿童的学习和营养成果有关。然而,关于改进学校讲卫生设施的成功扩大模式的文件有限。本文描述了一项创新的“转型运动”,旨在加强印度人口最多的北方邦政府办小学的讲卫生设施。该活动于2018年启动,随后在2020年推出了一个在线监测门户网站,使用基于数据的反馈和角色建模。对北方邦114790所公立小学进行了全面的基线评估,期间学校协调人根据设定的基准对学校获得讲卫生服务的情况进行了排名。与此同时,高级学校被建立为邻近学校的“学习实验室”,并获得了现场能力建设的机会。超过15万名教师通过定期的虚拟培训和跟踪进展的自动电话进行了系统的参与,所有这些都是集中在线门户网站的组成部分。政府采用了这种由冠军领导的学校转型(CLTS)方法,以表彰学生和教师支持的最佳实践。被认定为“拥护者”的教师和村民选代表(Gram Pradhan)的倡议得到了认可和传播,以建立一个有利于维持获取和实践的环境。截至2021年7月,75个地区65.8%的受评估学校通过修复/改造废弃设施和根据发现的缺口建造新设施,改善了基本基础设施。他们变得“遵守讲卫生”,并在过去3-4年中从多个来源获得了约457.1亿卢比的公共融资。现在,该州正在为188997个学前教育中心开展类似的改造活动,将覆盖560万3至6岁的儿童。这项运动的实施过程、挑战和经验教训可用于制定战略和设计扩大干预措施,以改善学校的讲卫生设施。
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引用次数: 1
Meandering rivers’ morphological changes analysis and prediction – a case study of Barak river, Assam 曲流河流形态变化分析与预测——以阿萨姆邦巴拉克河为例
IF 2.1 Q2 Environmental Science Pub Date : 2022-05-17 DOI: 10.2166/h2oj.2022.003
Apurba Nath, Susmita Ghosh
Morphological studies are vital for water resources management, riverbank development, and flood mitigation. In this study, the sinuosity index and bank erosion were used to detect and quantify morphological changes using Landsat data (1990–2020) in the Barak river, India. The morphological changes were investigated in protected areas to analyze the effectiveness of existing protective structures on bank migration, which helps formulate better riverbank restoration plans. Using monthly discharge data from two stream gauge stations, the Seasonal Autoregressive Integrated Moving Average (SARIMA) models were developed. The extensive sediment transportation in the region necessitates studying both the river flow and morphological changes. The developed SARIMA model was used to predict river discharges up to 2025, being trained with data from 2006 to 2015. The validation of the model (2016–2018) shows that the mean absolute percentage error for discharge at two gauging stations is 29.78 and 23.52%, respectively. The analysis shows that the sinuosity index and bank erosion were inversely proportional. The SARIMA model showed that the future monthly discharge in the case study could be substantially higher than the observed series and affect river erosion simultaneously. This approach applies to many other meandering river management and identifies future morphological changes.
形态学研究对水资源管理、河岸开发和洪水缓解至关重要。在本研究中,利用1990-2020年印度Barak河的Landsat数据,利用曲度指数和河岸侵蚀来检测和量化地貌变化。通过对保护区形态变化的调查,分析现有保护结构对河岸迁移的影响,为制定更好的河堤修复方案提供依据。利用两个测量站的月流量数据,建立了季节自回归综合移动平均(SARIMA)模型。该地区广泛的输沙作用需要对河流流量和形态变化进行研究。开发的SARIMA模型用于预测到2025年的河流流量,并使用2006年至2015年的数据进行训练。对模型(2016-2018)的验证表明,两个测量站流量的平均绝对百分比误差分别为29.78%和23.52%。分析表明,曲度指数与河岸侵蚀成反比。SARIMA模型表明,未来的月流量可能显著高于观测序列,并同时影响河流侵蚀。这种方法适用于许多其他曲流河管理,并确定未来的形态变化。
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引用次数: 3
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