Sustainable Water Supply and Demand Management in Semi-arid Regions: Optimizing Water Resources Allocation Based on RCPs Scenarios

Mirdashtvan, Mahsa; Najafinejad, Ali; Malekian, Arash; Sadoddin, Amir

doi:10.1007/s11269-021-03004-0

Cited by 41 publications

(19 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pathway development for bolder sustainability actions Despite originally having been developed for climate projections, 26 the SSP-RCP compliant pathways and their variations have been widely used as benchmarks in broader sustainability science 5,7,14 and its related areas (e.g., water, 99 agriculture, 100 and biodiversity 101 ). Their adaption in the current study was partly motivated by their extensive coverage of global-scale socioeconomic and environmental assumptions needed for an SDG analysis.…”

Section: Llmentioning

confidence: 99%

Early systems change necessary for catalyzing long-term sustainability in a post-2030 agenda

Eker¹,

Gao²,

Hadjikakou³

et al. 2022

One Earth

View full text Add to dashboard Cite

Section: Llmentioning

confidence: 99%

Early systems change necessary for catalyzing long-term sustainability in a post-2030 agenda

Eker¹,

Gao²,

Hadjikakou³

et al. 2022

One Earth

View full text Add to dashboard Cite

“…In recent times, the increasing demand for water resources in arid and semi-arid countries in different production sectors has encouraged scientists and technicians to seek new strategies in order to ensure constant supply of water throughout the year, regardless of meteorology [1][2][3]. Agriculture is the production sector with the largest consumption of water in the world, accounting for 70% of total freshwater (FW) withdrawals on average [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of irrigation with treated wastewater on bermudagrass (Cynodon dactylon (L.) Pers.) production and soil characteristics and estimation of plant nutritional input

et al. 2022

View full text Add to dashboard Cite

In recent years, climate change has greatly affected rainfall and air temperature levels leading to a reduction in water resources in Southern Europe. This fact has emphasized the need to focus on the use of non-conventional water resources for agricultural irrigation. The reuse of treated wastewater (TWW) can represent a sustainable solution, reducing the consumption of freshwater (FW) and the need for mineral fertilisers. The main aim of this study was to assess, in a three-year period, the effects of TWW irrigation compared to FW on the biomass production of bermudagrass [Cynodon dactylon (L.) Pers.] plants and soil characteristics and to estimate the nutritional input provided by TWW irrigation. TWW was obtained by a constructed wetland system (CWs) which was used to treat urban wastewater. The system had a total surface area of 100 m2. An experimental field of bermudagrass was set up close to the system in a Sicilian location (Italy), using a split-plot design for a two-factor experiment with three replications. Results highlighted a high organic pollutant removal [five days biochemical oxygen demand (BOD5): 61%, chemical oxygen demand (COD): 65%] and a good efficiency in nutrients [total nitrogen (TN): 50%, total phosphorus (TP): 42%] of the CWs. Plants irrigated with TWW showed higher dry aboveground dry-weight (1259.3 kg ha-1) than those irrigated with FW (942.2 kg ha-1), on average. TWW irrigation approximately allowed a saving of 50.0 kg TN ha-1 year-1, 24.0 kg TP ha-1 year-1 and 29.0 kg K ha-1 year-1 on average with respect to commonly used N-P-K fertilisation programme for bermudagrass in the Mediterranean region. Soil salinity increased significantly (p ≤ 0.01) over the years and was detected to be higher in TWW-irrigated plots (+6.34%) in comparison with FW-irrigated plots. Our findings demonstrate that medium-term TWW irrigation increases the biomass production of bermudagrass turf and contributes to save significant amounts of nutrients, providing a series of agronomic and environmental benefits.

show abstract

“…The policies and planning on the local blueprint were integrated to simulate the water resource variations. Although prior studies pointed out that restricting water demands [ 13 , 57 ], improving water use for industry and wastewater reuse [ 24 ], increasing water saving [ 53 ], installing filtration plants to provide affordable water supply [ 58 , 59 ] are all effective alternatives for achieving a water supply and demand balance, while simulation results in this study revealed that increasing unconventional water supply is more crucial than controlling water demand in improving water supply and demand balance. According to short-term and long-term optimization schemes, to guarantee balanced water supply and demand in the following 2025 and 2035, the domestic water consumption, the tertiary industry water demand, agricultural water use, and unconventional water supply should be consistently adjusted.…”

Section: Discussionmentioning

confidence: 82%

“…Its simulation and optimization involve a complicated systemic problem with the interaction of many subsystems [ 24 , 51 ], but existing simulation methods often implement with a few influence factors and ignore its interaction, without considering the local development policies and plans. For example, Mirdashtvan et al [ 13 ] only adopted adaptation scenarios to investigate the sustainable water supply and demand schemes. Li et al [ 52 ] constructed a water resource accessibility index model considering five spatial factors to evaluate the water resource accessibility in Southwest China.…”

Section: Discussionmentioning

confidence: 99%

“…The application of SD in water resources management has transformed from predictive simulation to variable interaction description [ 11 , 12 ]. The former describes the future spatiotemporal distribution of the available water resources, and the sustainability of water supply and demand influenced by human activities and climate change [ 13 ]. For example, Cheng et al [ 14 ] adopted the system dynamics to simulate the variation of the water resources carrying capacity in Suzhou city, China.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A scenario analysis-based optimal management of water resources supply and demand balance: A case study of Chengdu, China

Zhou

Zhao

et al. 2022

PLoS ONE

View full text Add to dashboard Cite

Water resources scarcity has threatened the coordinative development of demographics, society and economy. As a typical rapidly urbanizing area and an emerging megacity in China, Chengdu is confronting the pressure of inadequate water supply. The present study divides the macroeconomic factors that affect the water resource supply and demand balance into six major subsystems: water resources supply, water demand, water drainage, population, ecological environment and economy. The combining variable interaction description and predictive simulation models are applied to simulate the water supply and demand ratio (S:D) from 2005 to 2035. Further, this study designs different development scenarios to simulate the change of S:D ratios by altering the parameter values of driving factors. The results show that: (1) the S:D ratio will decline if the current development scenario continues, implying the serious water resources shortage and the severe water supply-demand conflict in Chengdu; (2) socio-economic water demand and wastewater/rainwater reuse are the key driving parameters of S:D ratio, especially the water consumption per ten thousand yuan of industrial value-added; (3) the S:D ratio will increase from 0.92 in the current baseline scenario to 1.06 in the integrated optimization scenario in 2025, and the long-term planning brings 2035 from 0.71 to 1.03, with the proportion of unconventional water supply rise to 38% and 61%, respectively. This study can provide a decision-making tool for policy-makers to explore plausible policy scenarios necessary for bridging the gap between the water supply and demand in megacities.

show abstract

Sustainable Water Supply and Demand Management in Semi-arid Regions: Optimizing Water Resources Allocation Based on RCPs Scenarios

Cited by 41 publications

References 26 publications

Early systems change necessary for catalyzing long-term sustainability in a post-2030 agenda

Early systems change necessary for catalyzing long-term sustainability in a post-2030 agenda

Effect of irrigation with treated wastewater on bermudagrass (Cynodon dactylon (L.) Pers.) production and soil characteristics and estimation of plant nutritional input

A scenario analysis-based optimal management of water resources supply and demand balance: A case study of Chengdu, China

Contact Info

Product

Resources

About