[1]ZHANG Bing-jie,SONG Ge.Evaluation on Cultivated Land Ecological Security and Analysis on the Driving Forces of the Typical Mollisols Area in Songnen High Plain ——A Case Study of Suihua City in Heilongjiang Province[J].Research of Soil and Water Conservation,2012,19(03):215-220.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 03
Page number:
215-220
Column:
Public date:
2012-06-20
- Title:
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Evaluation on Cultivated Land Ecological Security and Analysis on the Driving Forces of the Typical Mollisols Area in Songnen High Plain ——A Case Study of Suihua City in Heilongjiang Province
- Author(s):
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ZHANG Bing-jie, SONG Ge
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College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
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- Keywords:
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Songnen high plain; cultivated land; ecological security evaluation; Suihua City
- CLC:
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F301
- DOI:
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- Abstract:
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Evaluation on cultivated land ecological security of a certain area and identifying factors that affecting the cultivated land ecological security can be helpful to guide the rational and sustainable use of land resources. This paper takes the typical mollisols region that is an important commodity grain production base in China- Suihua City on Songnen High Plain in Heilongjiang Province as the study region, evaluation index system of cultivated land ecological security based on ‘P-S-R’ model was established, evaluation on cultivated land ecological security from 2001 to 2009 was performed by using the multiple factors analysis method, and the principal component analysis method was carried to find out the driving forces on cultivated land ecological security by using SPSS software. The results showed that the grade of security cultivated land ecological security was at the poor ecological level in 2001; the grade of cultivated land ecological security had risen to risk level from 2002 to 2004; from 2005 to 2009, the grade of cultivated land ecological security was at a sensitive stage. Natural disasters, serious soil erosion and the contradiction between people and land resources resulted in the ecological security problems in Suihua City. The paper showed that the socio-economic pressures, agricultural science and technology and environmental were the three factors affecting the cultivated land ecological security.