Impacts of climate change on urban rainwater harvesting systems

Shou-hong, Zhang; Zhang, Jianjun; Yue, Tongjia; Jing, Xuyang

doi:10.1016/j.scitotenv.2019.02.135

Cited by 92 publications

(42 citation statements)

References 55 publications

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“…Thus preliminary analysis and subsequent treatment using low-cost methods may need to be considered on a case-by-case basis. Recently, some studies have investigated the following: (i) surface treatments for enhancing rainwater harvesting [30], (ii) site selection for rainwater harvesting and subsequent storage systems [32], and (iii) the effects of climate change and variability on urban rainwater harvesting systems [33]. These recent studies provide critical information for the implementation of the Kilimanjaro Concept.…”

Section: Overview Of the Kilimanjaro Conceptmentioning

confidence: 99%

“…Locally infiltrating rainwater prevents salt intrusion in coastal areas, and deeper groundwater drawdown and depletion, which are the most widely reported adverse impacts of excessive groundwater abstraction [9,28,29]. Additionally, compared to surface runoff in rivers and streams, locally infiltrated rainwater is less likely to come in contact with agriculture and industry-related pollution, mainly where agricultural and industrial wastewaters are not treated before discharge into the environment [30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

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Making Rainwater Harvesting a Key Solution for Water Management: The Universality of the Kilimanjaro Concept

Marwa

Mwamila³

et al. 2019

Sustainability

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Rainwater is conventionally perceived as an alternative drinking water source, mostly needed to meet water demand under particular circumstances, including under semi-arid conditions and on small islands. More recently, rainwater has been identified as a potential source of clean drinking water in cases where groundwater sources contain high concentrations of toxic geogenic contaminants. Specifically, this approach motivated the introduction of the Kilimanjaro Concept (KC) to supply fluoride-free water to the population of the East African Rift Valley (EARV). Clean harvested rainwater can either be used directly as a source of drinking water or blended with polluted natural water to meet drinking water guidelines. Current efforts towards the implementation of the KC in the EARV are demonstrating that harvesting rainwater is a potential universal solution to cover ever-increasing water demands while limiting adverse environmental impacts such as groundwater depletion and flooding. Indeed, all surface and subsurface water resources are replenished by precipitation (dew, hail, rain, and snow), with rainfall being the main source and major component of the hydrological cycle. Thus, rainwater harvesting systems entailing carefully harvesting, storing, and transporting rainwater are suitable solutions for water supply as long as rain falls on earth. Besides its direct use, rainwater can be infiltrating into the subsurface when and where it falls, thereby increasing aquifer recharge while minimizing soil erosion and limiting floods. The present paper presents an extension of the original KC by incorporating Chinese experience to demonstrate the universal applicability of the KC for water management, including the provision of clean water for decentralized communities.

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Section: Overview Of the Kilimanjaro Conceptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Making Rainwater Harvesting a Key Solution for Water Management: The Universality of the Kilimanjaro Concept

Marwa

Mwamila³

et al. 2019

Sustainability

View full text Add to dashboard Cite

show abstract

“…Compared with the growing water demand, the supply of water from traditional sources is unsatisfactory, due to environmental constraints, storage capacity expansion limitation and extraction restrictions [15], the tensions between water reallocation from rural to urban areas [16][17][18], etc. At present, scholars are paying attention to alternatives, such as rainwater catchment systems, to supplement water sources [19][20][21]. However, rainwater is easily affected by climate change; water demand and water resource availability are affected by climatic conditions changes [21], which exacerbate the vulnerability of water resources [22].…”

Section: Introductionmentioning

confidence: 99%

Effect of Water-Saving Society Policy on Water Consumption in the Cities of China: A Propensity Score Matching Analysis

Zhao

2020

IJERPH

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The increased demand for water resources due to urban population and economic growth has worsened the urban water crisis. In order to address this issue, a policy of “developing a water-saving society” (namely, water-saving society policy) has been implemented in some Chinese cities. This study takes 285 cities at the prefecture level and above as the sample and uses the propensity score matching (PSM) method to analyze the effect of China’s urban water-saving society policy on the reduction of water consumption per CNY 10,000 gross domestic product (GDP) from 2005 to 2017. The results show that the water-saving society policy significantly (p < 0.01) reduced water consumption in the study period; however, the effects differed between cities with different water resource endowments, economic development level, and urban scale. Specifically, there was a positive water consumption reduction effect in cities in humid areas, with low economic development, or of large scale, while the effect was limited in cities in arid areas, with high economic development, or of small scale. Therefore, for areas where water resource supply is insufficient, water-saving policy should be designed and implemented suiting local conditions, and it is also necessary to explore more water sources.

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“…La gestión del agua es una opción para garantizar la preparación adecuada para la escasez de agua (Magrin et al, 2014) a través de las reglas de operación del embalse (Ahmadi et al, 2015). Las curvas de diseño o la eficiencia del riego pueden utilizarse como una herramienta fácil y confiable para mitigar los impactos del cambio climático (Guo & Shen, 2016;Zhang et al, 2019). Park et al, (2009) Para hacer frente a los efectos del cambio climático en la gestión de los recursos hídricos se deben aplicar medidas operativas en la gestión de los recursos hídricos de los sistemas de explotación y mejorar la eficiencia del riego.…”

Section: Efectos Del Cambio Climático En La Planificación De Los Recuunclassified

Section: Gestión Actual Y Futura De Los Recursos Hídricos Bajo El Camunclassified

Impacto del cambio climático en la seguridad alimentaria de climas tropicales. Aplicación a la Demarcación Hidrográfica de Manabí - Ecuador

Vera¹,

Fernando²

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Impacts of climate change on urban rainwater harvesting systems

Cited by 92 publications

References 55 publications

Making Rainwater Harvesting a Key Solution for Water Management: The Universality of the Kilimanjaro Concept

Making Rainwater Harvesting a Key Solution for Water Management: The Universality of the Kilimanjaro Concept

Effect of Water-Saving Society Policy on Water Consumption in the Cities of China: A Propensity Score Matching Analysis

Impacto del cambio climático en la seguridad alimentaria de climas tropicales. Aplicación a la Demarcación Hidrográfica de Manabí - Ecuador

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