Multivariate design of socioeconomic drought and impact of water reservoirs

Tu, Xin; Wu, Haiou; Singh, Vijay P.; Chen, Xiaohong; Lin, Kairong; Xie, Yuting

doi:10.1016/j.jhydrol.2018.09.012

Cited by 85 publications

(48 citation statements)

References 72 publications

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“…The reason for this is deduced from the explanation presented earlier (section 3.2.1); that is, along with an increase in WRSRI, the new drought events pooled from adjacent drought events with relatively shorter durations identified in the case when WRSRI is lower should have longer durations. Specifically, for a given new drought event, its duration is equal to the sum of the durations of the adjacent drought events and the interval between the adjacent drought events (Tu et al, 2018). Moreover, the results of the LD considering the criterion WRSRI = 0 (pooled) are also shown in Figure 6.…”

Section: Resultsmentioning

confidence: 99%

“…It is worth noting that WRSRI = 1 corresponds to the case that all the antecedent water deficit must be recovered during the process of socioeconomic drought event identification (Shi et al, 2018). In contrast, WRSRI = 0 is the case of identifying a socioeconomic drought event without considering the resilience of a regional water resources system (Mishra & Singh, 2010; Tu et al, 2018). Whether a change in WRSRI will have significant impacts on socioeconomic drought is worth studying, especially for the values close to the WRSRI value determined from the historical data.…”

Section: Methodsmentioning

confidence: 99%

“…In recent years, socioeconomic drought has been attracting significant attention among hydrologists, water managers, social scientists, and economists, among others (Eklund & Seaquist, 2015; Guo et al, 2019a, 2019b; Huang et al, 2016; Liu et al, 2020; Mehran et al, 2015; Shi et al, 2018; Tu et al, 2018). Normally, a socioeconomic drought event, which is associated with the minimum in‐stream water requirement (MIWR) against water supply, is considered to occur if the water supply from a regional water resources system cannot meet the water demand of the society (Shi et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…In general, the moment when the difference between the streamflow and the MIWR value changes from positive to negative (i.e., t s in Figure 1) is regarded as the start of a socioeconomic drought event, while the moment when the difference changes from negative to positive (i.e., t e in Figure 1) is regarded as the end of this event (Mishra & Singh, 2010; Tu et al, 2018). However, even if a socioeconomic drought event ends, the antecedent water deficit may still result in continued negative impacts on a regional water resources system, including in terms of hydrology, ecology, and economy (Borgomeo et al, 2015; Exposito & Bethel, 2017; Kim & Kaluarachchi, 2016; Thomas et al, 2014; You & Cai, 2008a, 2008b).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Socioeconomic Drought Under Growing Population and Changing Climate: A New Index Considering the Resilience of a Regional Water Resources System

2020

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Socioeconomic drought occurs when water supply from a regional water resources system cannot meet the water demands. Even if a socioeconomic drought ends, the antecedent water deficit may continue to have impacts for some time, thus influencing the resilience of a regional water resources system. To take this into account, especially under growing population and changing climate, this study develops a new method through integrating a new index, Water Resources System Resilience Index (WRSRI), into socioeconomic drought event identification. The new index represents the percentage of the antecedent water deficit for a socioeconomic drought that can be recovered from the excess water during subsequent periods through analyzing records of a historical drought event. The methodology, implemented on the East River Basin in South China, involves three major steps: (1) calculation of WRSRI value; (2) analysis of key features of identified future socioeconomic drought events, that is, total number, longest duration (LD), and percentage on different drought levels; and (3) sensitivity analysis of WRSRI based on a total of 52 streamflow data sets generated from General Circulation Model outputs and using a macroscale hydrologic model. The results indicate that, for each data set, the total number decreases with an increase in WRSRI but the LD increases; moreover, for most data sets, the LD is less sensitive within the WRSRI range of [0, 0.6]. The outcomes of this study can enhance our capability in more effectively assessing the resilience of a regional water resources system, especially under changing future socioeconomic and environmental conditions.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Socioeconomic Drought Under Growing Population and Changing Climate: A New Index Considering the Resilience of a Regional Water Resources System

2020

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“…Agricultural drought is linked to depletion of groundwater and reservoir levels, due, e.g., to increasing demand for water in agriculture or to changes in weather conditions and soil moisture [18][19][20][21]. Socioeconomic drought encompasses the societal, economic, and environmental impacts of other types of drought [22][23][24][25]. A drought in arid and semi-arid climate zones often starts with a meteorological drought, which leads directly to a hydrological drought.…”

mentioning

confidence: 99%

Unsustainability Syndrome—From Meteorological to Agricultural Drought in Arid and Semi-Arid Regions

Haghighi

Zaki

Rossi

et al. 2020

Water

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Water is the most important resource for sustainable agriculture in arid and semi-arid regions, where agriculture is the mainstay for rural societies. By relating the water usage to renewable water resources, we define three stages from sustainable to unsustainable water resources: (1) sustainable, where water use is matched by renewable water capacity, ensuring sustainable water resources; (2) transitional, where water use occasionally exceeds renewable water capacity; and (3) unsustainable, with lack of water resources for agriculture, society, and the environment. Using available drought indicators (standardized precipitation index (SPI) and streamflow drought index (SDI)) and two new indices for agricultural drought (overall agricultural drought index (OADI) and agricultural drought index (ADI)), we evaluated these stages using the example of Fars province in southern Iran in the period 1977–2016. A hyper-arid climate prevailed for an average of 32% of the province’s spatio-temporal coverage during the study period. The area increased significantly from 30.6% in the first decade (1977–1986) to 44.4% in the last (2006–2015). The spatiotemporal distribution of meteorological drought showed no significant negative trends in annual precipitation during 1977–2016, but the occurrence of hydrological droughts increased significantly in the period 1997–2016. The expansion of irrigated area, with more than 60% of rainfed agriculture replaced by irrigated agriculture (especially between 1997 and 2006), exerted substantial pressure on surface water and groundwater resources. Together, climate change, reduced river flow, and significant declines in groundwater level in major aquifers led to unsustainable use of water resources, a considerable reduction in irrigated area, and unsustainability in agricultural production in the period 2006–2015. Analysis of causes and effects of meteorological, hydrological, and agricultural drought in the area identified three clear stages: before 1997 being sustainable, 1997–2006 being transitional, and after 2006 being unsustainable.

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Climate‐driven runoff variability in semi‐mountainous reservoirs of the Vietnamese Mekong Delta: Insights for sustainable water management

Minh,

Kumar,

Meraj

et al. 2024

Irrigation and Drainage

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The Mekong Delta, South East Asia's ‘rice bowl’, sustains more than 18 million people through its agricultural output. This yield is secured by efficient water management systems but is susceptible to climatic changes. As Vietnam's policies aim to optimize the delta's semi‐mountainous regions reliant on rain‐fed agriculture, this study investigates drought risks and climate change impacts on runoff in the O Ta Soc and O Tuk Sa reservoirs, An Giang Province, Vietnam. Using simulation models, we determined runoff volumes for specific rainfall return periods and climate scenarios for the 2030s and 2050s. Using the storm water management model (SWMM), we simulated the reservoir water balance considering rainfall, evaporation and infiltration. Our findings suggest potentially increased runoff and reservoir storage due to intensified monsoons and reduced off‐season rainfall. The 4.77 km2 drainage of the O Ta Soc reservoir could benefit from this, while the 2.55 km2 drainage of the O Tuk Sa watershed may require alternative water‐sourcing strategies. This research offers insights for drought predictions, flood management and water strategies in An Giang. To refine these predictions, future research should consider upcoming rainfall patterns.

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Multivariate design of socioeconomic drought and impact of water reservoirs

Cited by 85 publications

References 72 publications

Socioeconomic Drought Under Growing Population and Changing Climate: A New Index Considering the Resilience of a Regional Water Resources System

Socioeconomic Drought Under Growing Population and Changing Climate: A New Index Considering the Resilience of a Regional Water Resources System

Unsustainability Syndrome—From Meteorological to Agricultural Drought in Arid and Semi-Arid Regions

Climate‐driven runoff variability in semi‐mountainous reservoirs of the Vietnamese Mekong Delta: Insights for sustainable water management

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