RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2015, Vol. 24 >> Issue (07): 1133-1141.doi: 10.11870/cjlyzyyhj201507008

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AGRICULTURAL WATER FOOTPRINT SPACE-TIME CHANGE AND DRIVING FACTORS RESEARCH OF VARIOUS CITIES IN SICHUAN PROVINCE FROM 2003 TO 2011

LIU Li1,2, DENG Ou-ping1,2, DENG Liang-ji1,2, GU Li-juan1,2   

  1. 1. College of Resources, Sichuan Agricultural University, Chengdu 611130, China;
    2. Sichuan Province Key Laboratory of Land Resources Information, Chengdu 611130, China
  • Received:2014-06-30 Revised:2014-09-10 Online:2015-07-20
  • Contact: 邓欧平,邓欧平,E-mail:182338008@qq.com E-mail:182338008@qq.com

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Abstract: In this research we use water footprint theory and calculation method to systematically study the dynamic change and evaluate the benefits of agricultural water footprint in Sichuan Province from 2003 to 2011, using the method of grey correlation to analysis the driving force factors. The results indicated that: (1) both the total and the average agricultural water footprint of Sichuan Province showed an increasing trend. Agriculture water footprint of Chengdu City, Nanchong City and DaZhou City is larger, which is 8.244×109 m3, 4.556×109 m3 and 4.102×109 m3 in 2011. Per capita agricultural water footprint between different cities is not big, Chengdu City and Panzhihua City are higher. (2) The benefits of agricultural water resources show: the net trade of agricultural water footprint are positive in various cities in Sichuan Province, which is a typical water output region. In 2006, 2009, 2010 and 2011, agricultural water resources scarcity degree is higher, the highest shortage of water resources occurred in Chengdu City, which is more than 200% per year from 2005 to 2010. (3) The driving factors of agricultural water resources show that: multi-cropping index and population is the key factor to agricultural water footprint changes, the correlation coefficients are 0.643 3 and 0.632 5. We suggest to improve the utilization efficiency of water resources, appropriately control the scale of water production, rational allocation of water resources, and realize water space of coordination.

Key words: various cities in Sichuan Province, agricultural water footprint, space-time change, driving force

CLC Number: 

  • TV213.9
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