scholarly journals Development of the Agricultural Water Demand and Supply Drought Index (AWDSDI) in Evaluating Daily Agricultural Drought in Small Administrative Districts

2021 ◽  
Vol 21 (2) ◽  
pp. 159-170
Author(s):  
Sangkwon Lee ◽  
Kukryul Oh ◽  
Sangman Jeong ◽  
Tae Sung Cheong
Keyword(s):  
Water Resources ◽  
Water Demand ◽  
Drought Index ◽  
Agricultural Sector ◽  
Hydrological Drought ◽  
Agricultural Drought ◽  
Agricultural Water ◽  
Demand And Supply ◽  
Water Demand And Supply ◽  
Hydrological Drought Index

Drought is caused by a long period of lack of rainfall and water resources, and has a great impact on the life and ecosystem of both humans and animals. It is particularly important for the agricultural sector, which is closely related to food security. Global warming, urbanization, and industrialization have led to a gradually increasing demand for agricultural water. In response, Korea has steadily developed its agricultural water sources to reduce rising damage to the agricultural sector due to climate change. The severity of drought is evaluated by using meteorological, agricultural, hydrological, and socioeconomic drought indexes. The agricultural drought index is evaluated using soil moisture and crop dryness, and the hydrological drought index is evaluated based on water shortage by comparing demands with water resources available for supply, such as rivers and groundwater, reservoirs and dams. However, these methods were found to over- or under-estimate the relatively low sensitivity of agricultural water as they assess the shortage of water for life, industry, and agriculture. Therefore, in this study, we developed the Agricultural Water Demand and Supply Drought Index (AWDSDI), which evaluates agricultural drought by analyzing water supply systems such as agricultural reservoirs, pumping stations and drainage, groundwater systems, and demands for agricultural water. In order to review the applicability of the developed drought index, AWDSDI was applied to 32 Eps and Myuns in three cities, including Jincheongun, Changnyeonggun, and Jangseonggun in the period June-August 2017, when drought damage was significant. It was found that AWDSDI reproduced the daily agricultural drought well in small administrative districts such as Eps and Myuns. In addition, in order to verify the developed drought index, the evaluation results of AWDSDI, the previously developed agricultural drought index and the hydrological drought index were compared together. The comparison found that the AWDSDI reproduced the drought period and drought depth in 32 Eps and Myuns in three cities better than previously developed drought indices.

scholarly journals Water resources planning in the Upper Niger River basin: Are there gaps between water demand and supply?

2019 ◽  
Vol 21 ◽  
pp. 176-194 ◽  
Author(s):  
Stefan Liersch ◽  
Samuel Fournet ◽  
Hagen Koch ◽  
Abdouramane Gado Djibo ◽  
Julia Reinhardt ◽  
...  
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Water Demand ◽  
Water Resources Planning ◽  
Demand And Supply ◽  
Water Demand And Supply ◽  
Niger River ◽  
Resources Planning

scholarly journals Evaluation of water demand and supply in the south of Iraq

2015 ◽  
Vol 6 (1) ◽  
pp. 214-226 ◽  
Author(s):  
M. H. O. Al-Furaiji ◽  
U. F. A. Karim ◽  
D. C. M. Augustijn ◽  
B. I. H. Waisi ◽  
S. J. M. H. Hulscher
Keyword(s):  
Water Resources ◽  
Water Demand ◽  
Water Shortage ◽  
Water Shortages ◽  
Demand And Supply ◽  
Water Demand And Supply ◽  
Annual Water ◽  
South Of Iraq ◽  
Total Water Demand ◽  
Southern Iraq

This paper presents results from the first study that focuses on water resources availability and demand for different purposes in the four oil-rich provinces of southern Iraq. The region accounts for 23% of the surface area and 18% of the country's population, but holds 88% of its oil. A water shortage of 430 Mm3/year for 2010 is estimated for this region where irrigation accounts for 81% of the total water demand. Dhi Qar is the largest agricultural producer and water consumer while Al Basrah and Al Muthanna have the largest water shortages among the four provinces. The interrelationship of energy–water production and utilization is discussed and the annual water balance for irrigation, industrial, domestic and livestock usage in the different provinces determined. On this basis recommendations are made for treating and utilizing the steadily increasing amounts of water produced from the oilfields to supplement the other sustainable water resources in that region.

scholarly journals Modelling current and future supply and water demand in the northern region of the Seybouse Valley

2017 ◽  
Vol 33 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Abdel-Fatah Berredjem ◽  
Azzedine Hani
Keyword(s):  
Economic Development ◽  
Water Resources ◽  
Water Demand ◽  
Water Policy ◽  
Northern Region ◽  
Steady Increase ◽  
Demand And Supply ◽  
Industrial Sectors ◽  
Water Demand And Supply ◽  
Future Supply

AbstractWater in the Seybouse River basin is getting scarce, yet it is the key to its economic development. A fast growing population, expanding agricultural and industrial sectors and the impacts of climate variability, create demands for new water sources and innovative management of water resources and services. The object of this study is the water resources management in the lower Seybouse basin characterized by a steady increase of water demand to meet different uses. This study takes into account changes in water demand of different urban, agricultural and industrial supply process. Our approach is to integrate data in WEAP modelling software to simulate current and future water balance and then to analyse the situation of water in different scenarios, socio-economic development and climate change to 2050. This software is based on the representation of the feeding system in a form of the network of water demand and supply. Our findings reveal the vulnerability of the region in its ability to the pressures resulting from the increase of needs of different sectors at the horizon of the forecasted period. They also indicate the need for larger mobilization of new resources into the system and lay the foundations for a sustainable water policy in the northern region of the Seybouse valley.

Exploring Northwest China's agricultural water-saving strategy: analysis of water use efficiency based on an SE-DEA model conducted in Xi'an, Shaanxi Province

2016 ◽  
Vol 74 (5) ◽  
pp. 1106-1115 ◽  
Author(s):  
L. Mu ◽  
L. Fang ◽  
H. Wang ◽  
L. Chen ◽  
Y. Yang ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Use Efficiency ◽  
Water Use ◽  
Water Demand ◽  
Water Governance ◽  
Northwest China ◽  
Water Saving ◽  
Shaanxi Province ◽  
Agricultural Water ◽  
Use Efficiency

Worldwide, water scarcity threatens delivery of water to urban centers. Increasing water use efficiency (WUE) is often recommended to reduce water demand, especially in water-scarce areas. In this paper, agricultural water use efficiency (AWUE) is examined using the super-efficient data envelopment analysis (DEA) approach in Xi'an in Northwest China at a temporal and spatial level. The grey systems analysis technique was then adopted to identify the factors that influenced the efficiency differentials under the shortage of water resources. From the perspective of temporal scales, the AWUE increased year by year during 2004–2012, and the highest (2.05) was obtained in 2009. Additionally, the AWUE was the best in the urban area at the spatial scale. Moreover, the key influencing factors of the AWUE are the financial situations and agricultural water-saving technology. Finally, we identified several knowledge gaps and proposed water-saving strategies for increasing AWUE and reducing its water demand by: (1) improving irrigation practices (timing and amounts) based on compatible water-saving techniques; (2) maximizing regional WUE by managing water resources and allocation at regional scales as well as enhancing coordination among Chinese water governance institutes.

A copula-based joint meteorological–hydrological drought index in a humid region (Kasilian basin, North Iran)

2018 ◽  
Vol 11 (12) ◽  
Author(s):  
Majid Cheraghalizadeh ◽  
Arezoo N. Ghameshlou ◽  
Javad Bazrafshan ◽  
Ommolbanin Bazrafshan
Keyword(s):  
Drought Index ◽  
Hydrological Drought ◽  
Humid Region ◽  
Hydrological Drought Index

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

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 838 ◽  
Author(s):  
Ali Torabi Haghighi ◽  
Nizar Abou Zaki ◽  
Pekka M. Rossi ◽  
Roohollah Noori ◽  
Ali Akbar Hekmatzadeh ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Use ◽  
Arid Regions ◽  
Drought Index ◽  
Agricultural Drought ◽  
Irrigated Agriculture ◽  
Fars Province ◽  
Water Capacity ◽  
Irrigated Area ◽  
Semi Arid

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.

Water desalination as an option to balance the water demand and supply equation of Jordan

2019 ◽  
Vol 162 ◽  
pp. 1-13
Author(s):  
Muna Abu-Dalo ◽  
Jumana Al-Mallahi ◽  
Yara Shahrouri ◽  
Hani Abu Qdais
Keyword(s):  
Water Demand ◽  
Water Desalination ◽  
Demand And Supply ◽  
Water Demand And Supply

A New Way of Understanding Rebound Phenomenon in Agriculture Water Demand Using A Global Sensitivity Analysis Approach

2020 ◽  
Author(s):  
Mohammad Ghoreishi ◽  
Razi Sheikholeslami ◽  
Saman Razavi ◽  
Amin Elshorbagy
Keyword(s):  
Water Resources ◽  
Water Demand ◽  
Agricultural Sector ◽  
Economic Factors ◽  
Net Income ◽  
Upward Trend ◽  
Irrigation Systems ◽  
Total Contribution ◽  
Global Sensitivity ◽  
Rebound Phenomenon

<p>Effective use of water resources has been identified as a means to improve resilience to drought, particularly in the agricultural sector. In recent decades, the idea of shifting to more efficient irrigation systems (e.g., sprinkler irrigation systems) has received increasing attention to reduce the amount of water loss by traditional irrigation systems (e.g., flood irrigation systems), requiring considerable capital investments. However, there are indications that such investments do not lead to a reduction in water use in the long-run, which may even increase paradoxically; a phenomenon known as the rebound phenomenon or Jevon’s paradox. One of the fundamental information gaps concerns an explicit evaluation of coevolutionary dynamics and the interactions among socio-economic factors in the rebound phenomenon in agriculture, which calls for the application of systems-based methodologies such as global sensitivity (GSA) analysis methods to look at time-dynamical aspects of the coevolutionary dynamics between various factors influencing rebound phenomenon. In this study, we use a previously calibrated and validated Agent-Based Agricultural Water Demand (ABAD) model applied to the Bow River Basin in Alberta, Canada - home  to extensive irrigated farmlands with a history of drought experience. We perform a time dependent variance-based GSA on the ABAD model to examine the direct impact of factors as well as their joint influence due to interactions on rebound phenomenon. The overall findings show that the economic factors are the most important elements, which has an upward trend in the simulation time, in the rebound phenomenon. This finding is supported by the local observation as the net income of irrigated land has an upward trend in this time period. In addition, although the individual effect of the factor representing the social interaction among farmers is less important compared to the irrigation expansion factor, its total-order effect (i.e., the total contribution of a single factor including interactions with all other factors) becomes more important indicating the significant interactions among model factors. This analysis provides a deeper understanding of the coevolutionary dynamics of the rebound phenomenon and paves the way for better management of water resources.</p>

Sign in / Sign up

Export Citation Format

Share Document