[1]XING Hai-hong.Analysis on Spatial Difference of Agricultural Virtual Water in Water Source Area of Southern Shaanxi Province Based on GIS[J].Research of Soil and Water Conservation,2013,20(05):300-304.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 05
Page number:
300-304
Column:
Public date:
2013-10-28
- Title:
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Analysis on Spatial Difference of Agricultural Virtual Water in Water Source Area of Southern Shaanxi Province Based on GIS
- Author(s):
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XING Hai-hong
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Department of History and Tourism, Shaanxi University of Technology, Hanzhong, Shaanxi 723000, China
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- Keywords:
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economic geography; virtual water of agricultural products; GIS; spatial difference; southern shaanxi
- CLC:
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F323;TV211.1
- DOI:
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- Abstract:
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On the base of GIS support, with the calculation method of Renault, etc, the spatial difference of agricultural virtual water in water source area of southern Shaanxi Province in 2010 was analyzed. The results have shown that the gross volumes of virtual water among the three cities are quite different(5.2×109 m3 in Hanzhong, 3.7×109 m3 in Ankang, and 2.3×109 m3 in Shangluo); both Hanzhong and Ankang have similar virtual water structure, such as pork(19%, 22%), oil (21%, 22%), and rice (25%, 14%), while Shangluo is very unlike the former, e.g., pork(21%,), wheat(17%), maize(20%). On county scale, the gross volume of virtual water, and all kinds of agricultural virtual water have shown the characteristics of higher volume along the valley area from which descend to mountainous area, and higher volume in the Daba mountain than that in the Qinling Mountain. The differences were mainly due to traditional customs, geographical conditions, agricultural structure adjustment. This paper put forward an agricultural space optimization scheme from the point of providing more water.