东莞市环境经济系统的能值分析

以能值理论与方法为基础,采用不同的能值指标和系统可持续性的综合性指标对东莞市的环境及经济发展状况进行分析,并与其他国家和地区相应指标进行比较,评价东莞市城市生态系统自然环境和社会经济可持续发展的状况。结果表明,东莞市全年利用总能值比较丰富,但经济发展程度与发达国家和地区相比还有一定差距,经济发展主要依赖外界的支持;东莞市自身环境资源相对匮乏,环境压力较大,远远超过了系统的环境承载力,东莞市可持续发展水平较低。结合东莞市实际,从能值分析角度提出其实施可持续发展的对策建议。

Emergy Analysis on Environmental Economic System of Dongguan City

Based on emergy theory and its analysis methods,the environment and economy development of Dongguan city was analyzed by using different emergy indexes and the comprehensive indexes of system sustainability.Comparing those indexes with other countries and regions,the sustainable development of natural environment and social economy was evaluated.As a result,the total emergy in the whole system was abundant.However,there was a gap between economy of Dongguan and developed countries,and Dongguan＇s economy was mainly depended on the external in 2005;the environmental recourses were comparatively deficient,and the environment stress was great,even exceeded environmental carrying capacity.So,the level of sustainable development of Dongguan city was low.Finally,Suggestions were discussed for the sustainability according to the local problems in Dongguan.