Abstract:

Based on the principle of ecological footprint，the paper constructed the new evaluation index system of ecological security and introduced the model of ecological tension index,ecological occupancy index and ecological economic coordination index.The paper analyzed the trends of ecological security in the Jiangsu Province from 1999 to 2008.The results showed that the per capita ecological footprint increased from 1.526 hm2 to 3.08 hm2,while the per person ecological capacity decreased from 0.522 hm2 to 0.477 hm2,and the per capita ecological deficit changed from 1.004 hm2 to 2.603 hm2 during 1999 to 2008.The ecological footprint of million in GDP dropped from 1.43 hm2 to 0.78 hm2.The ecological tension index increased from 2.922 in 1999 to 6.462 in 2008.The ecological occupancy index increased from 0.694 to 1.399.The ecological economic coordination index increased from 0.237 to 0.217.All the quantitative data indicated that the economical development model of Jiangsu Province was not sustainable,and the ecological security is not optimistic on the whole.The social economic development did not get along well with ecological environment,and worse still,in bad situations.Finally，the article analyzed the ecological security status on the future and proposed some appropriate measures.