A Study of the Fragility of Cultivated Land in Deyang Based on Ecological Footprint

CAO Wen-ya

doi:10.16779/j.cnki.1003-5508.2018.04.017

The arable land was the basic condition and material foundation of the development of human society,and the study of the fragility of arable land could be an important means to keep the cultivated land sustainable.By introducing the ecological footprint model,an analysis was made of the changes of ecological footprints and frangibility indexes of the cultivated land in recent ten years,and the ecological situation of the arable land was obtained in recent ten years.The results showed that ① ecological footprints showed a slow downward trend.②The ecological carrying capacity was decreasing,and the descending amplitude was large.③ The ecological deficit was getting serious,which had a great correlation with the decline of ecological carrying capacity.④ The possibility of ecological crisis was increasing,the arable land presented a fragile state.A reference could be provided for the sustainable development of local arable land.

Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Chengdu 610066, China

Received Date: 2018-05-17

Key words:

Abstract: The arable land was the basic condition and material foundation of the development of human society,and the study of the fragility of arable land could be an important means to keep the cultivated land sustainable.By introducing the ecological footprint model,an analysis was made of the changes of ecological footprints and frangibility indexes of the cultivated land in recent ten years,and the ecological situation of the arable land was obtained in recent ten years.The results showed that ① ecological footprints showed a slow downward trend.②The ecological carrying capacity was decreasing,and the descending amplitude was large.③ The ecological deficit was getting serious,which had a great correlation with the decline of ecological carrying capacity.④ The possibility of ecological crisis was increasing,the arable land presented a fragile state.A reference could be provided for the sustainable development of local arable land.

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Reference (9)

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A Study of the Fragility of Cultivated Land in Deyang Based on Ecological Footprint

doi: 10.16779/j.cnki.1003-5508.2018.04.017

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