Allocation priority management of agricultural water resources based on the theory of virtual water

2011 ◽  
Author(s):  
Chen Liang
Keyword(s):  
Water Resources ◽  
Virtual Water ◽  
Agricultural Water ◽  
Agricultural Water Resources

scholarly journals Assessment of Agricultural Water Resources Sustainability in Arid Regions Using Virtual Water Concept: Case of South Khorasan Province, Iran

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 449 ◽  
Author(s):  
Ehsan Qasemipour ◽  
Ali Abbasi
Keyword(s):  
Water Resources ◽  
Arid Regions ◽  
Groundwater Resources ◽  
Virtual Water ◽  
Cropping Pattern ◽  
Agricultural Water ◽  
Agricultural Water Resources ◽  
South Khorasan ◽  
Province Level ◽  
Water Resources Sustainability

Cropping pattern plays an important role in providing food and agricultural water resources sustainability, especially in arid regions in which the concomitant socioeconomic dangers of water shortage would be inevitable. In this research, six indices are applied to classify 37 cultivated crops according to Central Product Classification (CPC). The respective 10-year data (2005–2014) were obtained from Agricultural Organization of South Khorasan (AOSKh) province. The water footprint concept along with some economic indicators are used to assess the water use efficiency. Results show that blue virtual water contributes to almost 99 percent of Total Virtual Water (TVW). In this occasion that an increasing pressure is exerted on groundwater resources, improper pattern of planting crops has to be beyond reproach. The improper cropping pattern in the study area led to the overuse of 346 × 106 m3 of water annually. More specifically, cereals cultivation was neither environmentally nor economically sustainable and since they accounted for the largest share of water usage at the province level, importing them should be considered as an urgent priority. Vegetable cultivation could be further increased—instead of other water-intensive crops such as fruits—at the province level, not only due to their low TVW, but also to their higher financial output.

Water-Saving Irrigation and Food Security in China

2013 ◽  
Vol 438-439 ◽  
pp. 1441-1445
Author(s):  
Xiao Fei Liu ◽  
Jian Xin Xu ◽  
Jing Sheng Sun ◽  
Liang Jun Fei ◽  
Ji Yang Zhang ◽  
...  
Keyword(s):  
Food Security ◽  
Food Safety ◽  
Water Resources ◽  
Grain Production ◽  
Agricultural Water ◽  
Security Issue ◽  
Rational Development ◽  
Pressure Water ◽  
Agricultural Water Resources ◽  
Grain Security

With the growth of population, shortage of water resources, natural disasters, climate change, serious shortage of land resources and the development of urbanization and industrialization and impacts of other unfavorable factors, China's grain security issue has become a focus of public concern. Through the Chinese population quantity analysis and forecast of 2020 and 2030 the total demand of grain, comparison between total demand and current level of food production, China's grain problem is facing tremendous pressure. Water conservancy is the lifeline of agriculture and irrigation has great potential for grain production guarantee. Results for food safety in China made the following responses: First, the rational use of water resources, improve the efficiency of irrigation and grain yield per unit area. Second, multiple sectors such as agriculture, meteorology, soil, make a good combination of multiple disciplines for food security. Third, increase the peasants' production enthusiasm. Last, scientific and technological progress is the guarantee of grain production. In General, the issue of food security is national security, social stability, a top priority. The combination of our country's water resources crisis, limited rational development of agricultural water resources, improve the efficiency of irrigation, which will provide a guarantee for China agricultural water crisis, alleviating the shortage of water resources and increasing food safety assurance.

The Connotation and Extension of Agricultural Water Resources Security

2007 ◽  
Vol 6 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Bu-chun LIU ◽  
Xu-rong MEI ◽  
Yu-zhong LI ◽  
You-lu YANG
Keyword(s):  
Water Resources ◽  
Agricultural Water ◽  
Agricultural Water Resources
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