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[1]JIA Shunan,SUN Rui,XIA Xianli,et al.Estimation on the Cultivated Land Ecological Security of Xi’an and Analysis on Its Influence Factors[J].Research of Soil and Water Conservation,2016,23(03):164-169.

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Estimation on the Cultivated Land Ecological Security of Xi’an and Analysis on Its Influence Factors

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 03 Page number: 164-169 Column: Public date: 2016-06-28

Title:: Estimation on the Cultivated Land Ecological Security of Xi’an and Analysis on Its Influence Factors

Author(s):: JIA Shunan¹, SUN Rui¹, XIA Xianli¹, ZHANG Tianzhong²; 1. College of Economics and Management, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. Land Resources Planning Institute of Gansu Province, Lanzhou 730000, China

Keywords:: cultivated land; ecological security evaluation; energy theory; Xi’an City

CLC:: F301;X826

DOI:: -

Abstract:: Ecological security evaluation of cultivated land has the important practical significance to improve the cultivated land situation and promote the sustainable utilization of cultivated land. We established evaluation index system of cultivated land ecological security based on P-S-R model and evaluated the cultivated land ecological security during the period from 2001 to 2012 by using combination weighting method in the range of Xi’an,and the multiple linear regression was carried out to find the driving forces on cultivated land ecological security with SPSS software. The results showed that the evaluation value of cultivated land resources changed from the relatively safe area to safety critical region during the period from 2001 and 2007, there was a wave in 2004; The evaluation value increased during the period from 2007 to 2010, and reached up to the highest levels in 2010, cultivated land ecological situation changed to the safety critical region from the relatively safe area; The cultivated land resources safety state changed to the critical safety region in 2011, it had improved slowly in 2012, but still belonged to the safety critical state. Therefore, improving the output of per capita energy, increasing the proportion of agricultural financial expenditure and controlling the construction of farmland are all the important measures to improve the ecological security of cultivated land in Xi’an City.

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