Climate-Driven or Human-Induced: Indicating Severe Water Scarcity in the Moulouya River Basin (Morocco)

Tekken, Vera; Kropp, Jürgen P.

doi:10.3390/w4040959

Cited by 39 publications

(36 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The few existing studies in northwestern Africa (Ouysse et al, 2010;Tekken and Kropp, 2012) are not comparable with our findings, since the variables required to apply the PM equation were not available. Instead, these studies relied on simplified methods that just employ air temperature records.…”

Section: Discussioncontrasting

confidence: 55%

Recent changes and drivers of the atmospheric evaporative demand in the Canary Islands

Vicente‐Serrano

Azorín-Molina

Sánchez-Lorenzo

et al. 2016

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. We analysed recent evolution and meteorological drivers of the atmospheric evaporative demand (AED) in the Canary Islands for the period 1961-2013. We employed long and high-quality time series of meteorological variables to analyse current AED changes in this region and found that AED has increased during the investigated period. Overall, the annual ET o , which was estimated by means of the FAO-56 Penman-Monteith equation, increased significantly by 18.2 mm decade −1 on average, with a stronger trend in summer (6.7 mm decade −1 ). In this study we analysed the contribution of (i) the aerodynamic (related to the water vapour that a parcel of air can store) and (ii) radiative (related to the available energy to evaporate a quantity of water) components to the decadal variability and trends of ET o . More than 90 % of the observed ET o variability at the seasonal and annual scales can be associated with the variability in the aerodynamic component. The variable that recorded more significant changes in the Canary Islands was relative humidity, and among the different meteorological factors used to calculate ET o , relative humidity was the main driver of the observed ET o trends. The observed trend could have negative consequences in a number of water-depending sectors if it continues in the future.

show abstract

Section: Discussioncontrasting

confidence: 55%

Recent changes and drivers of the atmospheric evaporative demand in the Canary Islands

Vicente‐Serrano

Azorín-Molina

Sánchez-Lorenzo

et al. 2016

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…For that reason, water is not an optional consumer item. Rather, it is essential for human life and its availability presents a key resource for all economic activities (Gillespie 2005;Tekken and Kropp 2012). Globally, water resources are increasingly under pressure, mainly due to inter alia, changing lifestyles and population growth (Amell 2004).…”

Section: Introductionmentioning

confidence: 99%

An overview of the city of Gweru, Zimbabwe’s water supply chain capacity: towards a demand-oriented approach in domestic water service delivery

Kusena

Beckedahl

2014

GeoJournal

View full text Add to dashboard Cite

Following complaints about water shortages in some areas of Gweru, the paper assessed the availability of enabling capacities to efficiently and sufficiently deliver water to the residents of Gweru in line with the existing level of demand. The key inspected capacity aspects were infrastructure, human resources, finances and physical availability of raw water at source. Purposively selected informants from Zimbabwe National Water Authority (ZINWA) and Gweru city council (GCC) provided data on the infrastructural, financial and human resources situation of GCC. Dam levels data for Gweru's three supply dams were obtained from ZINWA records through the assistance of Sanyati Catchment Hydrologist. The raw water availability was assessed with the aid of MannKendall test using a 10 years period data set from 2003 to 2012 for trend analysis. Findings revealed that the water sources were not experiencing major changes in water levels, to be precise, the changes were insignificant. However, given the increase in population and demand, any slightest negative change in the supply chain would further widen the gap between supply and demand. The study also uncovered that GCC had challenges in terms of the infrastructure, mainly due to financial constraints. Notably, GCC was not experiencing high staff turnover, but it was however, seriously under staffed and failing to effectively monitor water use in the city. Therefore, strong financial injection is required to support staff and resuscitate the reticulation system. Given the perpetual water shortages in Gweru and the status quo in the supply chain, water demand management strategies, wastewater use and consumer education are consequently proposed as measures that would ensure continuous water supply for all needs in the city.

show abstract

“…For instance, in urban area, water demands are for building public green, supplementing rivers and artificial lakes; while in rural area, for supplementing swamps and low-lying lakes. Consequently, when facing water demand of expansion of urbanization and cultivated land irrigation, the shrinking water supply has led to severe regional water scarcity (Tekken and Kropp, 2012). Furthermore, population growth is determinate to increase of water demand in all urban-rural regions (Watson and Davies, 2011), and it may have impacts on living standard (Shi et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Impact analysis of government investment on water projects in the arid Gansu Province of China

Wang

Deng

et al. 2015

Physics and Chemistry of the Earth, Parts A/B/C

View full text Add to dashboard Cite

a b s t r a c tIn this paper, we introduced three-nested Constant Elasticity of Substitution (CES) production function into a static Computable General Equilibrium (CGE) Model. Through four levels of factor productivity, we constructed three nested production function of land use productivity in the conceptual modeling frameworks. The first level of factor productivity is generated by the basic value-added land. On the second level, factor productivity in each sector is generated by human activities that presents human intervention to the first level of factor productivity. On the third level of factor productivity, water allocation reshapes the non-linear structure of transaction among first and second levels. From the perspective of resource utilization, we examined the economic efficiency of water allocation. The scenario-based empirical analysis results show that the three-nested CES production function within CGE model is well-behaved to present the economy system of the case study area. Firstly, water scarcity harmed economic production. Government investment on water projects in Gansu thereby had impacts on economic outcomes. Secondly, huge governmental financing on water projects bring depreciation of present value of social welfare. Moreover, water use for environment adaptation pressures on water supply. The theoretical water price can be sharply increased due to the increasing costs of factor inputs. Thirdly, water use efficiency can be improved by water projects, typically can be benefited from the expansion of watersaving irrigation areas even in those expanding dry area in Gansu. Therefore, increasing governmental financing on water projects can depreciate present value of social welfare but benefit economic efficiency for future generation.

show abstract

Climate-Driven or Human-Induced: Indicating Severe Water Scarcity in the Moulouya River Basin (Morocco)

Cited by 39 publications

References 39 publications

Recent changes and drivers of the atmospheric evaporative demand in the Canary Islands

Recent changes and drivers of the atmospheric evaporative demand in the Canary Islands

An overview of the city of Gweru, Zimbabwe’s water supply chain capacity: towards a demand-oriented approach in domestic water service delivery

Impact analysis of government investment on water projects in the arid Gansu Province of China

Contact Info

Product

Resources

About