Potential of green infrastructure to restore predevelopment water budget of a semi-arid urban catchment

2016 ◽  
Vol 542 ◽  
pp. 744-755 ◽  
Author(s):  
Youcan Feng ◽  
Steven Burian ◽  
Christine Pomeroy
Keyword(s):  
Green Infrastructure ◽  
Water Budget ◽  
Urban Catchment ◽  
Semi Arid

scholarly journals Multi-Objective Model-Based Assessment of Green-Grey Infrastructures for Urban Flood Mitigation

Hydrology ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 110
Author(s):  
Carlos Martínez ◽  
Zoran Vojinovic ◽  
Arlex Sanchez
Keyword(s):  
Green Infrastructure ◽  
Overland Flow ◽  
Flood Damage ◽  
Optimal Number ◽  
Rainfall Runoff ◽  
Urban Catchment ◽  
Model Based ◽  
Model Domain ◽  
Infiltration Processes ◽  
2D Model

This paper presents the performance quantification of different green-grey infrastructures, including rainfall-runoff and infiltration processes, on the overland flow and its connection with a sewer system. The present study suggests three main components to form the structure of the proposed model-based assessment. The first two components provide the optimal number of green infrastructure (GI) practices allocated in an urban catchment and optimal grey infrastructures, such as pipe and storage tank sizing. The third component evaluates selected combined green-grey infrastructures based on rainfall-runoff and infiltration computation in a 2D model domain. This framework was applied in an urban catchment in Dhaka City (Bangladesh) where different green-grey infrastructures were evaluated in relation to flood damage and investment costs. These practices implemented separately have an impact on the reduction of damage and investment costs. However, their combination has been shown to be the best action to follow. Finally, it was proved that including rainfall-runoff and infiltration processes, along with the representation of GI within a 2D model domain, enhances the analysis of the optimal combination of infrastructures, which in turn allows the drainage system to be assessed holistically.

Green infrastructure optimization to achieve pre-development conditions of a semiarid urban catchment

2019 ◽  
Vol 5 (6) ◽  
pp. 1157-1171 ◽  
Author(s):  
Hessam E. Tavakol-Davani ◽  
Hassan Tavakol-Davani ◽  
Steven J. Burian ◽  
Brian J. McPherson ◽  
Michael E. Barber
Keyword(s):  
Green Infrastructure ◽  
Stormwater Runoff ◽  
Environmental Benefits ◽  
Design Approach ◽  
Urban Catchment ◽  
Runoff Reduction ◽  
Infrastructure Design

The introduced hydrologically comprehensive green infrastructure design approach exceeds conventional stormwater runoff reduction goals in terms of common environmental benefits.

scholarly journals Characteristics of Dew Formation and Distribution, and Its Contribution to the Surface Water Budget in a Semi-arid Region in China

2014 ◽  
Vol 154 (2) ◽  
pp. 317-331 ◽  
Author(s):  
Qiang Zhang ◽  
Sheng Wang ◽  
Fu-Lin Yang ◽  
Ping Yue ◽  
Tong Yao ◽  
...  
Keyword(s):  
Surface Water ◽  
Water Budget ◽  
Arid Region ◽  
Dew Formation ◽  
Semi Arid Region ◽  
Semi Arid

Study on Constructing of Green Infrastructure and Riparian Wetland of Cities in Northwest Semi-Arid Area

2013 ◽  
Vol 357-360 ◽  
pp. 2085-2091
Author(s):  
Ding Huang Xu ◽  
Xiao Hui Ding ◽  
Hui Liu ◽  
Zhi Ying Zheng
Keyword(s):  
Green Infrastructure ◽  
Western China ◽  
Environmental Resources ◽  
Rapid Urbanization ◽  
Riparian Wetland ◽  
Natural Landscape ◽  
Counter Measures ◽  
Ecological Protection ◽  
Riparian Landscape ◽  
Semi Arid

Northwestern China is situated at the semi-arid climatic zone with a fragile eco-environmental condition. Natural landscape in this region has been largely impacted by development cities, and also has great contribution to culture implications of cities. At present, the way of urbanization, which emphases more on economic development rather than ecological protection, has jeopardized the natural landscape and environmental resources relied for survival by cities, and cities in Western China are facing even serious challenges of environmental degradation during rapid urbanization process. Green infrastructures of cities are guarantee of its citizens to get access to ecological services, and construction of green infrastructure is the major ecological counter measures for dealing with negative environmental impacts led by rapid urbanization, based on protecting environmental resources, ameliorating ecological process, and rebuilding natural landscape. Taken Xian as an example, it reviewed the construction of riparian wetland, which is one of the major components of green infrastructure in Xian. This research provided the methodology for riparian landscape constructing based on ecological and cultural characteristics of riparian landscape.

How much water remains? Incorporating publicly available irrigation data to improve meso-scale hydrological model performance in dryland environments

2021 ◽  
Author(s):  
Paul Voit
Keyword(s):  
Water Management ◽  
Water Resources ◽  
Water Budget ◽  
Water Withdrawal ◽  
Hydrological Models ◽  
Different Sources ◽  
Modelling Process ◽  
Semi Arid ◽  
Meso Scale ◽  
Irrigation Practices

<p>Being responsible for about 70% of the world’s freshwater use, agricultural irrigation practices have a strong impact on water budgets in dryland environments and will increase to do so, as an increase in irrigated areas worldwide is expected. In semi-arid catchments, irrigation can account for a substantial proportion of the water budget, especially during the dry season. Consequently, due to the limited water resources, these catchments rely on adequate water management practices. Water withdrawal from groundwater, river flow or reservoirs for irrigation purposes alter the overall hydrological balance. Being aware of such important impacts on the regional (meso-scale) water budget, hydrological models should improve their capability to account for them, including typical operational data availability and constraints. Thus, the answers on water management issues should be addressed, such as, how do these withdrawals alter the rivers’ flow regime and water yield? How do they affect sustainability of regional water resources, both in a seasonal and long-term time scale? Can public irrigation data be used to improve the performance of a catchment model?</p><p>To account for this particular anthropogenic interference with the hydrological cycle a novel irrigation module is introduced to improve meso-scale hydrological models’ performance for such hydro-climatic conditions. We implemented this module into WASA-SED, a hydro-sedimentological model tailored for semi-arid catchments on the meso-scale, now enabling to account for irrigation practices in the modelling process. The module allows to represent water abstraction from different sources (ground water, river, reservoirs), inter- and intra- basin transfers and seasonality of irrigation schemes. As a test case, a semi-arid catchment with excellent irrigation data in the Rio Sao Francisco basin, Brazil, was chosen to investigate exemplarily the impact of irrigation operations on the low river flows in the dry season. Using publicly available irrigation data as input for this module, it could be shown, that including irrigation practices into the modelling process helps to improve the model’s performance.</p><p>Furthermore, modelling results can be used to estimate the real water withdrawal rates, as there is uncertainty about how much water the users actually withdraw, because irrigation data from the Brazilian authorities shows the maximum withdrawal rates, as defined in contracts for water use for river water, but not the actually used water rates, which might be different (less or sometimes even more) than the contracts’ maximum rates. Whether the users withdraw more or less water than officially granted is uncertain. The model’s results can be used to estimate realistic withdrawal rates as well as to predict further irrigation potential in the given catchment. Likewise, the effect of exploiting different sources for irrigation water (i.e., rivers, reservoirs, and groundwater) can be analysed in terms of their reliability and effect on the river system.</p>

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