Evaluation of Eco-security in Qinghai Province Based on Entropy Weight and Matter Element Model

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (2) : 208-214. DOI: 10.11924/j.issn.1000-6850.2013-0539
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Evaluation of Eco-security in Qinghai Province Based on Entropy Weight and Matter Element Model

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Abstract

In order to estimate scientifically land eco-security of ecologically fragile area and it’s change of cultivated land resources in Qinghai Province, an index system and the corresponding weight values were established based on “pressure-state-response” model and entropy weight method, and an integrated evaluation model was constructed with matter element model to evaluate land eco-security of Qinghai Province. Land eco-security change situation was analyzed in Qinghai Province during 2000 to 2010. Results indicated that, the whole level of land eco-security in Qinghai Province improved slightly from relative insecurity to critical security; The change of cultivated land eco-security index was different of each city/state in Qinghai Province and the distinction of different city/state were obvious. The main restriction factors of land eco-security was density of economy, cultivated land area per capita, forest and grass coverage ratio, proportion of natural disaster area and dosage of farmland fertilizer.

Key words

eco-security; entropy weight; matter element model; evaluation

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Evaluation of Eco-security in Qinghai Province Based on Entropy Weight and Matter Element Model. Chinese Agricultural Science Bulletin. 2014, 30(2): 208-214 https://doi.org/10.11924/j.issn.1000-6850.2013-0539

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