Agricultural Water Demand and Management in India

2020 ◽  
pp. 33-52
Author(s):  
Ashutosh Pandey ◽  
B. P. Yadav ◽  
Prasenjit Mondal
Keyword(s):  
Water Demand ◽  
Agricultural Water

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.

Remote sensing of agricultural water demand information: A California study

1978 ◽  
Vol 14 (2) ◽  
pp. 170-176 ◽  
Author(s):  
John E. Estes ◽  
John R. Jensen ◽  
Larry R. Tinney
Keyword(s):  
Remote Sensing ◽  
Water Demand ◽  
Agricultural Water ◽  
Demand Information

Assessment of Agricultural Water Demand of Arial Khan River Catchment Using Cropwat 8.0 Model

2021 ◽  
pp. 461-474
Author(s):  
Md Abul Kalam Azad ◽  
Umme Kulsum Navera ◽  
Sabrina Rashid Sheonty
Keyword(s):  
Water Demand ◽  
Agricultural Water ◽  
River Catchment

Estimating North Korea Agricultural Water Demand in Paddy Fields Using Satellite Images and GIS

2007 ◽  
Author(s):  
Sung Han - Yoon ◽  
Jin Yong Choi ◽  
Min Won Jang ◽  
Seung Hwan Yoo
Keyword(s):  
Water Demand ◽  
North Korea ◽  
Satellite Images ◽  
Paddy Fields ◽  
Agricultural Water

Decoupling of forest water supply and agricultural water demand attributable to deforestation in North Korea

2019 ◽  
Vol 248 ◽  
pp. 109256 ◽  
Author(s):  
Chul-Hee Lim ◽  
Cholho Song ◽  
Yuyoung Choi ◽  
Seong Woo Jeon ◽  
Woo-Kyun Lee
Keyword(s):  
Water Supply ◽  
Water Demand ◽  
North Korea ◽  
Agricultural Water

scholarly journals Conceptional Model of Regional Agricultural Water Management System

2005 ◽  
pp. 199-209
Author(s):  
Ildikó Nagy ◽  
János Tamás
Keyword(s):  
Water Management ◽  
Water Demand ◽  
Management System ◽  
Agricultural Water ◽  
Time Model ◽  
Water Management System ◽  
Management Scenario ◽  
Decision Alternative ◽  
Safety Production ◽  
The Right

Our study focuses on the water management improvement of the Hajdúsági-löszhát (loess ridge). The Hajdúsági-löszhát (loess ridge) is an intensive agricultural area. At the same time, the problem of increasing water demand is still not solved, so towards of safety production irrigation should be improved. To realise this should be known not even agricultural water demands but industrial and urban ones as well, thus a complex water management system is required to be worked out.In the first part of the research, the water demand in the area is mapped, then a conceptional model of the Hajdúsági-löszhát’s (loess ridge’s) water management system is created. After collecting data the water management scenario is summarized in a real time model splitted into five periods.During the research, the instruments of spatial informatics (GIS) are used to get acquainted with the variation of the hydrological parameters in space and time. To understand and simulate the different decision making processes and to choose the right decision alternative, a decision support system is created with the use of spatial informatics data.In addition, considering the potentially right decision alternative, irrigation will be started in practice, an effect and after-effect inquiry will be made, and the results will be analysed, evaluated and summarized. Finally, a suggestion to the most adequate irrigation technology will be made.

scholarly journals Water-Centric Nexus Approach for the Agriculture and Forest Sectors in Response to Climate Change in the Korean Peninsula

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1657
Author(s):  
Chul-Hee Lim
Keyword(s):  
Climate Change ◽  
Water Balance ◽  
Water Supply ◽  
Water Demand ◽  
Korean Peninsula ◽  
Spatial Models ◽  
Climatic Conditions ◽  
Agricultural Water ◽  
Adaptation To Climate Change ◽  
The Future

Climate change has inherent multidisciplinary characteristics, and predicting the future of a single field of work has a limit. Therefore, this study proposes a water-centric nexus approach for the agriculture and forest sectors for improving the response to climate change in the Korean Peninsula. Two spatial models, i.e., Environmental Policy Integrated Climate and Integrated Valuation of Ecosystem Services and Tradeoffs, were used to assess the extent of changes in agricultural water demand, forest water supply, and their balance at the watershed level in the current and future climatic conditions. Climate changed has increased the agricultural water demand and forest water supply significantly in all future scenarios and periods. Comparing the results with RCP8.5 2070s and the baseline, the agricultural water demand and forest water supply increased by 35% and 28%, respectively. Water balance assessment at the main watershed level in the Korean Peninsula revealed that although most scenarios of the future water supply increases offset the demand growth, a risk to water balance exists in case of a low forest ratio or smaller watershed. For instance, the western plains, which are the granary regions of South and North Korea, indicate a higher risk than other areas. These results show that the land-use balance can be an essential factor in a water-centric adaptation to climate change. Ultimately, the water-centric nexus approach can make synergies by overcoming increasing water demands attributable to climate change.

scholarly journals Revival of Traditional Cascade Tanks for Achieving Climate Resilience in Drylands of South India

2021 ◽  
Vol 3 ◽  
Author(s):  
Pennan Chinnasamy ◽  
Aman Srivastava
Keyword(s):  
Water Supply ◽  
Water Demand ◽  
South India ◽  
Recent Decade ◽  
Water Shortage ◽  
Agricultural Water ◽  
Domestic Water ◽  
North East ◽  
Sustainable Water Supply ◽  
South West Monsoon

Traditional tanks in arid regions of India have been working to address water demands of the public for more than 2000 years. However, recent decade is witnessing growing domestic and agricultural water demand coupled with rising encroachment and ignorance toward tanks; consequently, intensifying water shortage issues. While climate change is impacting at alarming rates, local agencies have forgotten these tanks that have aided in sustainable water supply solutions for decades apart from municipal water supply. This research, for the first time, estimates water supply-demand for an arid region in South India (Madurai) and lists out the benefits if tanks were managed and desilted. Exploratory investigations for documenting seasonal domestic and agricultural unmet water demand were conducted followed by their validation through ground-truthing across the study period 2002–2019. Results indicated high unmet domestic water demand, estimating ~73% [maximum 365 thousand cubic meters (TCM)] for summer (March to May) and ~33% (maximum 149 TCM) for winter (January and February), and high unmet agricultural water demand estimating ~90% (maximum 5,424 TCM) during North-East monsoon (October to December), and ~95% (maximum 5,161 TCM) during South-West monsoon (June to September). Erratic rainfall pattern was identified as a major cause for higher fluctuations in water availability inside tanks ranging 0–50%, while lack of ownership resulted in increased siltation load ranging 30–70% of the tank's volume. The study found that the major portion of the unmet water demand can be accounted for through rehabilitation of the tanks, as under the rehabilitated tank irrigation scenario the tank storage could attain 200–400% more water than the estimated agricultural water demand. It was concluded that if the cascade tanks were managed appropriately, they could have positive impacts by reducing floods and providing water for drought seasons.

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